diff --git a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/transformations/ConvertToolImageTransformerTest.java b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/transformations/ConvertToolImageTransformerTest.java
index 0918cfb41e709d0084280fedfbbf72e47c176b90..070d7de5ec82a56449ac325df7db1d5e1856becb 100644
--- a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/transformations/ConvertToolImageTransformerTest.java
+++ b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/etl/dto/api/v1/transformations/ConvertToolImageTransformerTest.java
@@ -35,7 +35,7 @@ public class ConvertToolImageTransformerTest extends AssertJUnit
     private final String CONVERT_PARAMS =
             " -contrast-stretch 0 -edge 1 -threshold 1 -transparent black ";
 
-    @Test
+    @Test(groups = "slow")
     public void testTransformation()
     {
         BufferedImage templateImage = readImage("pond.png");
diff --git a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHeatmapTest.java b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHeatmapTest.java
index d6f80a39038333bb57512966ddbe8004262f3f0b..d5ed6298cc98da38fb73237431b6d9328860b6f0 100644
--- a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHeatmapTest.java
+++ b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHeatmapTest.java
@@ -26,6 +26,7 @@ import ch.systemsx.cisd.openbis.dss.generic.shared.utils.CodeAndLabelUtil;
 /**
  * @author Chandrasekhar Ramakrishnan
  */
+@Test(groups = "slow")
 public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
 {
     @Test
@@ -35,7 +36,8 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
 
         TabularDataHeatmapConfiguration config =
                 new TabularDataHeatmapConfiguration("Infection Index",
-                        CodeAndLabelUtil.create("WellName"), CodeAndLabelUtil.create("InfectionIndex"), 300, 200);
+                        CodeAndLabelUtil.create("WellName"),
+                        CodeAndLabelUtil.create("InfectionIndex"), 300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -52,7 +54,8 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Small Numbers", CodeAndLabelUtil.create("WellName"),
+                new TabularDataHeatmapConfiguration("Small Numbers",
+                        CodeAndLabelUtil.create("WellName"),
                         CodeAndLabelUtil.create("SmallNumbers"), 300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
@@ -64,14 +67,15 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         assertTrue(outputFile.length() > 0);
     }
 
-    @Test(groups = "slow")
+    @Test
     public void testBigNumberHeatmap() throws IOException
     {
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Big Number", CodeAndLabelUtil.create("WellName"),
-                        CodeAndLabelUtil.create("BigNumber"), 300, 200);
+                new TabularDataHeatmapConfiguration("Big Number",
+                        CodeAndLabelUtil.create("WellName"), CodeAndLabelUtil.create("BigNumber"),
+                        300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -107,8 +111,9 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Just NaN", CodeAndLabelUtil.create("WellName"),
-                        CodeAndLabelUtil.create("JustNaN"), 300, 200);
+                new TabularDataHeatmapConfiguration("Just NaN",
+                        CodeAndLabelUtil.create("WellName"), CodeAndLabelUtil.create("JustNaN"),
+                        300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -125,8 +130,9 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Some NaN", CodeAndLabelUtil.create("WellName"),
-                        CodeAndLabelUtil.create("SomeNaN"), 300, 200);
+                new TabularDataHeatmapConfiguration("Some NaN",
+                        CodeAndLabelUtil.create("WellName"), CodeAndLabelUtil.create("SomeNaN"),
+                        300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -143,8 +149,9 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Just Inf", CodeAndLabelUtil.create("WellName"),
-                        CodeAndLabelUtil.create("JustInf"), 300, 200);
+                new TabularDataHeatmapConfiguration("Just Inf",
+                        CodeAndLabelUtil.create("WellName"), CodeAndLabelUtil.create("JustInf"),
+                        300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -161,8 +168,9 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Some Inf", CodeAndLabelUtil.create("WellName"),
-                        CodeAndLabelUtil.create("SomeInf"), 300, 200);
+                new TabularDataHeatmapConfiguration("Some Inf",
+                        CodeAndLabelUtil.create("WellName"), CodeAndLabelUtil.create("SomeInf"),
+                        300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -180,7 +188,8 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
 
         TabularDataHeatmapConfiguration config =
                 new TabularDataHeatmapConfiguration("Blanks", CodeAndLabelUtil.create("WellRow"),
-                        CodeAndLabelUtil.create("WellCol"), CodeAndLabelUtil.create("Blanks"), 300, 200);
+                        CodeAndLabelUtil.create("WellCol"), CodeAndLabelUtil.create("Blanks"), 300,
+                        200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -198,7 +207,8 @@ public class TabularDataHeatmapTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHeatmapConfiguration config =
-                new TabularDataHeatmapConfiguration("Non-Existant", CodeAndLabelUtil.create("WellName"),
+                new TabularDataHeatmapConfiguration("Non-Existant",
+                        CodeAndLabelUtil.create("WellName"),
                         CodeAndLabelUtil.create("Non-Existant"), 300, 200);
         AbstractTabularDataGraph<TabularDataHeatmapConfiguration> graph =
                 new TabularDataHeatmap(config, getTestDatasetFileLines(),
diff --git a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHistogramTest.java b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHistogramTest.java
index fab88d536379a2c570b42f1b734894a8df946ddb..6a58af2c5d24a60743f24d1623787c6147fc225f 100644
--- a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHistogramTest.java
+++ b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataHistogramTest.java
@@ -26,6 +26,7 @@ import ch.systemsx.cisd.openbis.dss.generic.shared.utils.CodeAndLabelUtil;
 /**
  * @author Chandrasekhar Ramakrishnan
  */
+@Test(groups = "slow")
 public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
 {
     @Test
@@ -34,8 +35,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Infected Cells", CodeAndLabelUtil.create(
-                        "InfectedCells"), 300, 200, 6);
+                new TabularDataHistogramConfiguration("Infected Cells",
+                        CodeAndLabelUtil.create("InfectedCells"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -52,8 +53,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Small Numbers", CodeAndLabelUtil.create(
-                        "SmallNumbers"), 300, 200, 6);
+                new TabularDataHistogramConfiguration("Small Numbers",
+                        CodeAndLabelUtil.create("SmallNumbers"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -70,8 +71,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Big Number", CodeAndLabelUtil.create("BigNumber"),
-                        300, 200, 6);
+                new TabularDataHistogramConfiguration("Big Number",
+                        CodeAndLabelUtil.create("BigNumber"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -88,7 +89,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Zero", CodeAndLabelUtil.create("Zero"), 300, 200, 6);
+                new TabularDataHistogramConfiguration("Zero", CodeAndLabelUtil.create("Zero"), 300,
+                        200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -105,8 +107,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Just NaN", CodeAndLabelUtil.create("JustNaN"), 300,
-                        200, 6);
+                new TabularDataHistogramConfiguration("Just NaN",
+                        CodeAndLabelUtil.create("JustNaN"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -123,8 +125,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Some NaN", CodeAndLabelUtil.create("SomeNaN"), 300,
-                        200, 6);
+                new TabularDataHistogramConfiguration("Some NaN",
+                        CodeAndLabelUtil.create("SomeNaN"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -141,8 +143,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Just Inf", CodeAndLabelUtil.create("JustInf"), 300,
-                        200, 6);
+                new TabularDataHistogramConfiguration("Just Inf",
+                        CodeAndLabelUtil.create("JustInf"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -159,8 +161,8 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Some Inf", CodeAndLabelUtil.create("SomeInf"), 300,
-                        200, 6);
+                new TabularDataHistogramConfiguration("Some Inf",
+                        CodeAndLabelUtil.create("SomeInf"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -171,14 +173,14 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         assertTrue(outputFile.length() > 0);
     }
 
-    @Test(groups = "slow")
+    @Test
     public void testLotsOfBlanksHistogram() throws IOException
     {
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Blanks", CodeAndLabelUtil.create("Blanks"), 300,
-                        200, 6);
+                new TabularDataHistogramConfiguration("Blanks", CodeAndLabelUtil.create("Blanks"),
+                        300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
@@ -189,14 +191,14 @@ public class TabularDataHistogramTest extends AbstractTabularDataGraphTest
         assertTrue(outputFile.length() > 0);
     }
 
-    @Test(groups = "slow")
+    @Test
     public void testIncorrectlyConfiguredHistogram() throws IOException
     {
         File outputFile = getImageOutputFile();
 
         TabularDataHistogramConfiguration config =
-                new TabularDataHistogramConfiguration("Test", CodeAndLabelUtil.create("Non-Existant"),
-                        300, 200, 6);
+                new TabularDataHistogramConfiguration("Test",
+                        CodeAndLabelUtil.create("Non-Existant"), 300, 200, 6);
         AbstractTabularDataGraph<TabularDataHistogramConfiguration> graph =
                 new TabularDataHistogram(config, getTestDatasetFileLines(),
                         getOutputStream(outputFile));
diff --git a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataScatterplotTest.java b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataScatterplotTest.java
index 6f211afa12fb6f354f91c885e71afb9f0c6498a2..4b3d613f4fef59ef55b59882ed8bb55d8e6f328c 100644
--- a/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataScatterplotTest.java
+++ b/screening/sourceTest/java/ch/systemsx/cisd/openbis/dss/generic/server/graph/TabularDataScatterplotTest.java
@@ -28,6 +28,7 @@ import ch.systemsx.cisd.openbis.generic.shared.basic.dto.CodeAndLabel;
 /**
  * @author Chandrasekhar Ramakrishnan
  */
+@Test(groups = "slow")
 public class TabularDataScatterplotTest extends AbstractTabularDataGraphTest
 {
     @Test
diff --git a/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/resultset/PlateMetadataProviderTest.java b/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/resultset/PlateMetadataProviderTest.java
index 57c82aa6b62294dbd9733d89b1bebcc035513a03..6f635506db99fedebb2a4a09c7345e94e9e0aea2 100644
--- a/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/resultset/PlateMetadataProviderTest.java
+++ b/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/resultset/PlateMetadataProviderTest.java
@@ -64,7 +64,7 @@ public class PlateMetadataProviderTest extends AbstractServerTestCase
         provider = new PlateMetadataProvider(service, SESSION_TOKEN, plateId);
     }
 
-    @Test
+    @Test(groups = "slow")
     public void test()
     {
         final WellMetadata wellMetadata = new WellMetadata();
diff --git a/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/server/ScreeningServerTest.java b/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/server/ScreeningServerTest.java
index 3803f3441b490fdb63f5ecf57579a53ee17f08e3..6477f787c8cb521b16a412abe49d100aa016e2d2 100644
--- a/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/server/ScreeningServerTest.java
+++ b/screening/sourceTest/java/ch/systemsx/cisd/openbis/plugin/screening/server/ScreeningServerTest.java
@@ -122,7 +122,7 @@ public class ScreeningServerTest extends AbstractServerTestCase
         assertEquals("{A=hello}", sample.getProperties().toString());
     }
     
-    @Test
+    @Test(groups = "slow")
     public void testGetPlateSampleViaAugmentedCode()
     {
         prepareGetSession();