From c5749a967563442994ab3183c7ecc13fa4e6b1f1 Mon Sep 17 00:00:00 2001
From: simonbrandhof <simon.brandhof@gmail.com>
Date: Mon, 6 Dec 2010 14:12:57 +0000
Subject: SONAR-249 add 2 periods for variation values + rename
 SNAPSHOT.VAR_xxx columns + fix saving of dependencies

---
 .../main/java/org/sonar/jpa/entity/SchemaMigration.java    |  2 +-
 .../AsyncMeasuresDaoTest/testDeleteAsyncMeasure-result.xml |  4 ++--
 .../dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure.xml    |  4 ++--
 .../testGetAsyncMeasureSnapshotsFromSnapshotId.xml         |  6 +++---
 .../testGetNextAsyncMeasureSnapshotsUntilDate.xml          | 14 +++++++-------
 .../AsyncMeasuresDaoTest/testGetNextSnapshotsUntilDate.xml | 14 +++++++-------
 .../dao/AsyncMeasuresDaoTest/testGetPreviousSnapshot.xml   | 10 +++++-----
 .../AsyncMeasuresServiceTest/addFutureSnapshot-result.xml  |  6 +++---
 .../jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot.xml |  6 +++---
 .../addInvisibleMeasure-result.xml                         |  6 +++---
 .../dao/AsyncMeasuresServiceTest/addInvisibleMeasure.xml   |  6 +++---
 ...astMeasureToNextSnapshotsWithDifferentMetric-result.xml | 10 +++++-----
 ...ssignAPastMeasureToNextSnapshotsWithDifferentMetric.xml | 10 +++++-----
 .../assignLatestMeasuresToLastSnapshot-result.xml          | 10 +++++-----
 .../assignLatestMeasuresToLastSnapshot.xml                 | 10 +++++-----
 .../assignLatestMeasuresWhenNoPreviousSnapshot-result.xml  | 10 +++++-----
 .../assignLatestMeasuresWhenNoPreviousSnapshot.xml         | 10 +++++-----
 ...nMeasureToFutureSnapshotsWithDifferentMetric-result.xml | 14 +++++++-------
 .../assignMeasureToFutureSnapshotsWithDifferentMetric.xml  | 14 +++++++-------
 .../assignMeasuresWhenNoPreviousSnapshot-result.xml        |  6 +++---
 .../assignMeasuresWhenNoPreviousSnapshot.xml               |  6 +++---
 .../assignNewMeasureToFutureSnapshots-result.xml           | 10 +++++-----
 .../assignNewMeasureToFutureSnapshots.xml                  | 10 +++++-----
 .../assignNewMeasuresToLastSnapshot-result.xml             | 10 +++++-----
 .../assignNewMeasuresToLastSnapshot.xml                    | 10 +++++-----
 .../assignPastMeasuresToPastSnapshot-result.xml            | 10 +++++-----
 .../assignPastMeasuresToPastSnapshot.xml                   | 10 +++++-----
 .../AsyncMeasuresServiceTest/deleteLastMeasure-result.xml  | 10 +++++-----
 .../jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure.xml | 10 +++++-----
 .../dao/AsyncMeasuresServiceTest/deleteMeasure-result.xml  | 10 +++++-----
 .../jpa/dao/AsyncMeasuresServiceTest/deleteMeasure.xml     | 10 +++++-----
 31 files changed, 139 insertions(+), 139 deletions(-)

(limited to 'sonar-core')

diff --git a/sonar-core/src/main/java/org/sonar/jpa/entity/SchemaMigration.java b/sonar-core/src/main/java/org/sonar/jpa/entity/SchemaMigration.java
index 0be085d8be8..6ab6aa2a902 100644
--- a/sonar-core/src/main/java/org/sonar/jpa/entity/SchemaMigration.java
+++ b/sonar-core/src/main/java/org/sonar/jpa/entity/SchemaMigration.java
@@ -30,7 +30,7 @@ import java.sql.Statement;
 public class SchemaMigration {
 
   public final static int VERSION_UNKNOWN = -1;
-  public static final int LAST_VERSION = 162;
+  public static final int LAST_VERSION = 163;
 
   public final static String TABLE_NAME = "schema_migrations";
 
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure-result.xml
index 4af92259aaa..ceb6a73c68c 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure-result.xml
@@ -1,8 +1,8 @@
 <dataset>
 
-  <!--<project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]" rule_priority="[null]" alert_text="[null]"  id="1" project_id="1" metric_id="1" value="1" measure_date="2008-12-03 08:00:00.00" rule_id="[null]"-->
+  <!--<project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]" rule_priority="[null]" alert_text="[null]"  id="1" project_id="1" metric_id="1" value="1" measure_date="2008-12-03 08:00:00.00" rule_id="[null]"-->
   <!--snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>-->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-06 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure.xml
index f48a0da88bc..e4e1e9f289d 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testDeleteAsyncMeasure.xml
@@ -1,12 +1,12 @@
 <dataset>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"
                     alert_status="[null]" description="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-06 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetAsyncMeasureSnapshotsFromSnapshotId.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetAsyncMeasureSnapshotsFromSnapshotId.xml
index 4f322b2b317..7396e8ad054 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetAsyncMeasureSnapshotsFromSnapshotId.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetAsyncMeasureSnapshotsFromSnapshotId.xml
@@ -1,17 +1,17 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 18:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"
                     description="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="2" value="2"
                     measure_date="2008-12-04 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextAsyncMeasureSnapshotsUntilDate.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextAsyncMeasureSnapshotsUntilDate.xml
index e9a4565e4fb..61767d76618 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextAsyncMeasureSnapshotsUntilDate.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextAsyncMeasureSnapshotsUntilDate.xml
@@ -1,36 +1,36 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"
                     description="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-06 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"
                     description="[null]"/>
   <!-- measure inserted on snapshot 2 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-04 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextSnapshotsUntilDate.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextSnapshotsUntilDate.xml
index aca8c1920b4..71775c632fc 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextSnapshotsUntilDate.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetNextSnapshotsUntilDate.xml
@@ -1,31 +1,31 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="5" scope="FIL" qualifier="CLA" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="FIL" qualifier="CLA" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="4" root_project_id="[null]" root_snapshot_id="4" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="6" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-04 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetPreviousSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetPreviousSnapshot.xml
index 552b61db0c8..3fa76deb9b6 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetPreviousSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresDaoTest/testGetPreviousSnapshot.xml
@@ -1,22 +1,22 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="2"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot-result.xml
index c5b7af6b0e5..9ddb9347b25 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot-result.xml
@@ -1,18 +1,18 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to first sanspshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- New measure, after last snapshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-04 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot.xml
index 9eb8dcc3e1f..25a778c34f4 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addFutureSnapshot.xml
@@ -1,18 +1,18 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to first sanspshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- New measure, after last snapshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-04 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure-result.xml
index 28ed810bd11..e459dbe1f6e 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure-result.xml
@@ -1,18 +1,18 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to first sanspshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- New measure, just before first measure -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="50"
                     measure_date="2008-12-02 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure.xml
index 29b9cbd3d0a..2b00d0ba953 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/addInvisibleMeasure.xml
@@ -1,18 +1,18 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to first sanspshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- New measure, just before first measure -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="50"
                     measure_date="2008-12-02 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric-result.xml
index cf7f8271ed2..6a571169637 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric-result.xml
@@ -1,26 +1,26 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to snapshot 3 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-05 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- Past measure inserted, have to be assigned only to snapshot 1 and 2 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric.xml
index 8c0b6ea95c2..71c19147399 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignAPastMeasureToNextSnapshotsWithDifferentMetric.xml
@@ -1,26 +1,26 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to snapshot 3 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-05 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- Past measure inserted, have to be assigned only to snapshot 1 and 2 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot-result.xml
index 81157482f8b..be67073f2ea 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot-result.xml
@@ -1,27 +1,27 @@
 <dataset>
 
   <!-- Previous snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- New snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-02 10:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="2" value="5"
                     measure_date="2008-12-03 10:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot.xml
index 2ff1c2c9d61..11bad05104f 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresToLastSnapshot.xml
@@ -1,27 +1,27 @@
 <dataset>
 
   <!-- Previous snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- New snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-02 10:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="2" value="5"
                     measure_date="2008-12-03 10:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot-result.xml
index 86d4cc9ad90..7b9a278e9aa 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot-result.xml
@@ -1,30 +1,30 @@
 <dataset>
 
   <!-- new snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!--latest-->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-03 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="2" value="6"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!--latest-->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="4" project_id="1" metric_id="2" value="7"
                     measure_date="2008-12-03 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot.xml
index 8f2a735e5f4..efe0fc3c37e 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignLatestMeasuresWhenNoPreviousSnapshot.xml
@@ -1,30 +1,30 @@
 <dataset>
 
   <!-- new snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!--latest-->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-03 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="2" value="6"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!--latest-->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="4" project_id="1" metric_id="2" value="7"
                     measure_date="2008-12-03 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric-result.xml
index f5c64076ac2..244badc9415 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric-result.xml
@@ -1,36 +1,36 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to snapshot 1, 2 and 3 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- Assigned to snapshot 4 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-06 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- To be assigned only to snapshot 2 and 3 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-04 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric.xml
index f73178a0bf6..54e267f6a5a 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasureToFutureSnapshotsWithDifferentMetric.xml
@@ -1,36 +1,36 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-06 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to snapshot 1, 2 and 3 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- Assigned to snapshot 4 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-06 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- To be assigned only to snapshot 2 and 3 -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-04 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot-result.xml
index 3d2050bea4d..912cfe62ce5 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot-result.xml
@@ -1,16 +1,16 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-03 14:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="2" value="5"
                     measure_date="2008-12-03 15:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot.xml
index 61e354203f5..c0b1d8999bd 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignMeasuresWhenNoPreviousSnapshot.xml
@@ -1,16 +1,16 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-03 14:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="2" value="5"
                     measure_date="2008-12-03 15:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots-result.xml
index d0707ddfed3..1f4facf2590 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots-result.xml
@@ -1,25 +1,25 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="10"
                     measure_date="2008-12-03 8:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- New measure -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-04 8:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots.xml
index 1162d146ab9..9a82aee7895 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasureToFutureSnapshots.xml
@@ -1,25 +1,25 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="10"
                     measure_date="2008-12-03 8:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- New measure -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-04 8:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot-result.xml
index 8c467ecf413..cc623a71d3b 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot-result.xml
@@ -1,30 +1,30 @@
 <dataset>
 
   <!-- Previous snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- New snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- Assigned to first sanspshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
 
   <!-- Assigmed to no snapshot, because its new reviews -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-03 18:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="2" value="5"
                     measure_date="2008-12-04 10:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot.xml
index ea54b273008..66092a132b3 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignNewMeasuresToLastSnapshot.xml
@@ -1,29 +1,29 @@
 <dataset>
 
   <!-- Previous snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- New snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"/>
 
   <!-- Assigned to first sanspshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-02 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
 
   <!-- Assigmed to no snapshot, because its new reviews -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-03 18:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="3" project_id="1" metric_id="2" value="5"
                     measure_date="2008-12-04 10:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot-result.xml
index 1d78befb613..cf44c6df0d5 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot-result.xml
@@ -1,31 +1,31 @@
 <dataset>
 
   <!-- First snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- Last snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- New snapshot, inserted between last two -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
 
   <!-- reviews attached to first snapshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-01 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- reviews attached to last snapshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-04 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot.xml
index e5c62c3c3e9..a3d993e5fa1 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/assignPastMeasuresToPastSnapshot.xml
@@ -1,31 +1,31 @@
 <dataset>
 
   <!-- First snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- Last snapshot -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
   <!-- New snapshot, inserted between last two -->
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
 
   <!-- reviews attached to first snapshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-01 12:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- reviews attached to last snapshot -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="5"
                     measure_date="2008-12-04 12:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure-result.xml
index feb0b5e2838..71cdaa444df 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure-result.xml
@@ -1,21 +1,21 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <!--<project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]" rule_priority="[null]" alert_text="[null]" id="1" project_id="1" metric_id="1" value="12" measure_date="2008-12-03 10:00:00.00" rule_id="[null]"
+  <!--<project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]" rule_priority="[null]" alert_text="[null]" id="1" project_id="1" metric_id="1" value="12" measure_date="2008-12-03 10:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>-->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-04 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure.xml
index 4ae1322e0c3..5b7fc1f5e0e 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteLastMeasure.xml
@@ -1,24 +1,24 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="12"
                     measure_date="2008-12-03 10:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="8"
                     measure_date="2008-12-04 08:00:00.00" rule_id="[null]"
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure-result.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure-result.xml
index 3aedda520ab..debd2b21855 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure-result.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure-result.xml
@@ -1,23 +1,23 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- async measure to be deleted -->
-  <!--<project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]" rule_priority="[null]" alert_text="[null]" id="2" project_id="1" metric_id="1" value="2" measure_date="2008-12-05 08:00:00.00" rule_id="[null]"-->
+  <!--<project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]" rule_priority="[null]" alert_text="[null]" id="2" project_id="1" metric_id="1" value="2" measure_date="2008-12-05 08:00:00.00" rule_id="[null]"-->
   <!--snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>-->
 
   <!-- old async measure snapshots -->
diff --git a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure.xml b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure.xml
index 971256d9026..eb71b9a83f0 100644
--- a/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure.xml
+++ b/sonar-core/src/test/resources/org/sonar/jpa/dao/AsyncMeasuresServiceTest/deleteMeasure.xml
@@ -1,25 +1,25 @@
 <dataset>
 
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-03 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2008-12-04 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
-  <snapshots var_mode_1="[null]" var_label_1="[null]" var_mode_2="[null]" var_label_2="[null]" var_mode_3="[null]" var_label_3="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
+  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-05 12:00:00.00" version="[null]"
              project_id="1"
               parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="1" project_id="1" metric_id="1" value="1"
                     measure_date="2008-12-03 08:00:00.00" rule_id="[null]"
                     snapshot_id="[null]" rules_category_id="[null]" text_value="[null]" tendency="[null]"/>
   <!-- async measure to be deleted -->
-  <project_measures characteristic_id="[null]" url="[null]" diff_value_1="[null]" diff_value_2="[null]" diff_value_3="[null]"
+  <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]" variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
                     alert_text="[null]" id="2" project_id="1" metric_id="1" value="2"
                     measure_date="2008-12-05 08:00:00.00" rule_id="[null]"
-- 
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