Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.cs
===================================================================
diff -u -rbbe05cc3ea48be765fc7cf54a6ed750d4af5c319 -r8f1aa8966d866743c259bb14fb4bff7a9e76a703
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.cs	(.../AssessmentSectionMergeDataProviderDialog.cs)	(revision bbe05cc3ea48be765fc7cf54a6ed750d4af5c319)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/AssessmentSectionMergeDataProviderDialog.cs	(.../AssessmentSectionMergeDataProviderDialog.cs)	(revision 8f1aa8966d866743c259bb14fb4bff7a9e76a703)
@@ -37,7 +37,7 @@
     /// and its <see cref="IFailureMechanism"/> to use for merging the data. The selections
     /// can be obtained upon closing the dialog.
     /// </summary>
-    public partial class AssessmentSectionMergeDataProviderDialog : DialogBase, IMergeDataProvider
+    public partial class AssessmentSectionMergeDataProviderDialog : DialogBase, IAssessmentSectionMergeDataProvider
     {
         private FailureMechanismMergeDataRow[] failureMechanismMergeDataRows;
         private bool assessmentSectionComboBoxUpdating;
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/IAssessmentSectionMergeDataProvider.cs
===================================================================
diff -u -r469c1810a2cc836791b78d185c7c1b0d414ec472 -r8f1aa8966d866743c259bb14fb4bff7a9e76a703
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/IAssessmentSectionMergeDataProvider.cs	(.../IAssessmentSectionMergeDataProvider.cs)	(revision 469c1810a2cc836791b78d185c7c1b0d414ec472)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/IAssessmentSectionMergeDataProvider.cs	(.../IAssessmentSectionMergeDataProvider.cs)	(revision 8f1aa8966d866743c259bb14fb4bff7a9e76a703)
@@ -21,8 +21,8 @@
 
 using System;
 using System.Collections.Generic;
+using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Integration.Data;
-using Ringtoets.Integration.Data.Merge;
 
 namespace Ringtoets.Integration.Forms.Merge
 {
@@ -32,13 +32,22 @@
     public interface IAssessmentSectionMergeDataProvider
     {
         /// <summary>
-        /// Gets the data to merge.
+        /// Gets the selected <see cref="AssessmentSection"/>.
         /// </summary>
-        /// <param name="assessmentSections">The collection of assessment sections to get the merge
-        /// data from.</param>
-        /// <returns>The selected merge data.</returns>
+        AssessmentSection SelectedAssessmentSection { get; }
+
+        /// <summary>
+        /// Gets the collection of selected <see cref="IFailureMechanism"/>.
+        /// </summary>
+        IEnumerable<IFailureMechanism> SelectedFailureMechanisms { get; }
+
+        /// <summary>
+        /// Select the data to merge.
+        /// </summary>
+        /// <param name="assessmentSections">The collection of assessment sections to select from.</param>
+        /// <returns>Indicator whether selection succeeded.</returns>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="assessmentSections"/>
         /// is <c>null</c>.</exception>
-        AssessmentSectionMergeData GetMergeData(IEnumerable<AssessmentSection> assessmentSections);
+         bool SelectData(IEnumerable<AssessmentSection> assessmentSections);
     }
 }
\ No newline at end of file
Fisheye: Tag 8f1aa8966d866743c259bb14fb4bff7a9e76a703 refers to a dead (removed) revision in file `Ringtoets/Integration/src/Ringtoets.Integration.Forms/Merge/IMergeDataProvider.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Ringtoets.Integration.Forms.csproj
===================================================================
diff -u -r5ee30eaa00a9dd80cd118a2d1c41da13bb9cf67f -r8f1aa8966d866743c259bb14fb4bff7a9e76a703
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Ringtoets.Integration.Forms.csproj	(.../Ringtoets.Integration.Forms.csproj)	(revision 5ee30eaa00a9dd80cd118a2d1c41da13bb9cf67f)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Ringtoets.Integration.Forms.csproj	(.../Ringtoets.Integration.Forms.csproj)	(revision 8f1aa8966d866743c259bb14fb4bff7a9e76a703)
@@ -44,7 +44,7 @@
     <Compile Include="Merge\AssessmentSectionMergeFilePathProvider.cs" />
     <Compile Include="Merge\FailureMechanismMergeDataRow.cs" />
     <Compile Include="Merge\IAssessmentSectionMergeFilePathProvider.cs" />
-    <Compile Include="Merge\IMergeDataProvider.cs" />
+    <Compile Include="Merge\IAssessmentSectionMergeDataProvider.cs" />
     <Compile Include="Observers\AssessmentSectionResultObserver.cs" />
     <Compile Include="PresentationObjects\AssemblyResultPerSectionContext.cs" />
     <Compile Include="PresentationObjects\AssemblyResultTotalContext.cs" />
Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMerger.cs
===================================================================
diff -u -rec4f74f82ab2f95e1ea20313b1bba8404f3222c9 -r8f1aa8966d866743c259bb14fb4bff7a9e76a703
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMerger.cs	(.../AssessmentSectionMerger.cs)	(revision ec4f74f82ab2f95e1ea20313b1bba8404f3222c9)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMerger.cs	(.../AssessmentSectionMerger.cs)	(revision 8f1aa8966d866743c259bb14fb4bff7a9e76a703)
@@ -43,7 +43,7 @@
         private readonly IAssessmentSectionMergeFilePathProvider filePathProvider;
         private readonly IAssessmentSectionProvider assessmentSectionProvider;
         private readonly IAssessmentSectionMergeComparer comparer;
-        private readonly IMergeDataProvider mergeDataProvider;
+        private readonly IAssessmentSectionMergeDataProvider mergeDataProvider;
         private readonly IAssessmentSectionMergeHandler mergeHandler;
 
         /// <summary>
@@ -56,7 +56,7 @@
         /// <param name="mergeHandler">The handler to perform the merge.</param>
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
         public AssessmentSectionMerger(IAssessmentSectionMergeFilePathProvider filePathProvider, IAssessmentSectionProvider assessmentSectionProvider,
-                                       IAssessmentSectionMergeComparer comparer, IMergeDataProvider mergeDataProvider, IAssessmentSectionMergeHandler mergeHandler)
+                                       IAssessmentSectionMergeComparer comparer, IAssessmentSectionMergeDataProvider mergeDataProvider, IAssessmentSectionMergeHandler mergeHandler)
         {
             if (filePathProvider == null)
             {
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Merge/AssessmentSectionMergeDataProviderDialogTest.cs
===================================================================
diff -u -rbcaa77cec41e488c4715b68a8487db377310acac -r8f1aa8966d866743c259bb14fb4bff7a9e76a703
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Merge/AssessmentSectionMergeDataProviderDialogTest.cs	(.../AssessmentSectionMergeDataProviderDialogTest.cs)	(revision bcaa77cec41e488c4715b68a8487db377310acac)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Merge/AssessmentSectionMergeDataProviderDialogTest.cs	(.../AssessmentSectionMergeDataProviderDialogTest.cs)	(revision 8f1aa8966d866743c259bb14fb4bff7a9e76a703)
@@ -76,7 +76,7 @@
             {
                 // Assert
                 Assert.IsInstanceOf<DialogBase>(dialog);
-                Assert.IsInstanceOf<IMergeDataProvider>(dialog);
+                Assert.IsInstanceOf<IAssessmentSectionMergeDataProvider>(dialog);
 
                 Assert.AreEqual("Selecteer trajectinformatie", dialog.Text);
 
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergerTest.cs
===================================================================
diff -u -rec4f74f82ab2f95e1ea20313b1bba8404f3222c9 -r8f1aa8966d866743c259bb14fb4bff7a9e76a703
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergerTest.cs	(.../AssessmentSectionMergerTest.cs)	(revision ec4f74f82ab2f95e1ea20313b1bba8404f3222c9)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergerTest.cs	(.../AssessmentSectionMergerTest.cs)	(revision 8f1aa8966d866743c259bb14fb4bff7a9e76a703)
@@ -45,7 +45,7 @@
             var mocks = new MockRepository();
             var assessmentSectionProvider = mocks.StrictMock<IAssessmentSectionProvider>();
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -65,7 +65,7 @@
             var mocks = new MockRepository();
             var filePathProvider = mocks.StrictMock<IAssessmentSectionMergeFilePathProvider>();
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -85,7 +85,7 @@
             var mocks = new MockRepository();
             var filePathProvider = mocks.StrictMock<IAssessmentSectionMergeFilePathProvider>();
             var assessmentSectionProvider = mocks.StrictMock<IAssessmentSectionProvider>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -114,7 +114,7 @@
 
             // Assert
             var exception = Assert.Throws<ArgumentNullException>(call);
-            Assert.AreEqual("mergeDataProvider", exception.ParamName);
+            Assert.AreEqual("assessmentSectionMergeDataProvider", exception.ParamName);
             mocks.VerifyAll();
         }
 
@@ -126,7 +126,7 @@
             var filePathProvider = mocks.StrictMock<IAssessmentSectionMergeFilePathProvider>();
             var assessmentSectionProvider = mocks.StrictMock<IAssessmentSectionProvider>();
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             mocks.ReplayAll();
 
             // Call
@@ -146,7 +146,7 @@
             var filePathProvider = mocks.StrictMock<IAssessmentSectionMergeFilePathProvider>();
             var assessmentSectionProvider = mocks.StrictMock<IAssessmentSectionProvider>();
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -170,7 +170,7 @@
             filePathProvider.Expect(helper => helper.GetFilePath()).Return(null);
             var assessmentSectionProvider = mocks.StrictMock<IAssessmentSectionProvider>();
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -195,7 +195,7 @@
             assessmentSectionProvider.Expect(asp => asp.GetAssessmentSections(null)).IgnoreArguments()
                                      .Throw(new AssessmentSectionProviderException());
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -220,7 +220,7 @@
             assessmentSectionProvider.Expect(asp => asp.GetAssessmentSections(null)).IgnoreArguments()
                                      .Return(Enumerable.Empty<AssessmentSection>());
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -249,7 +249,7 @@
                                      });
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
             comparer.Expect(c => c.Compare(null, null)).IgnoreArguments().Return(false);
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
 
@@ -278,7 +278,7 @@
                                      });
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
             comparer.Expect(c => c.Compare(null, null)).IgnoreArguments().Return(true);
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             mergeDataProvider.Expect(mdp => mdp.SelectData(null)).IgnoreArguments().Return(false);
             var mergeHandler = mocks.StrictMock<IAssessmentSectionMergeHandler>();
             mocks.ReplayAll();
@@ -308,7 +308,7 @@
                                      });
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
             comparer.Expect(c => c.Compare(null, null)).IgnoreArguments().Return(true);
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             mergeDataProvider.Expect(mdp => mdp.SelectData(null)).IgnoreArguments().Return(true);
             mergeDataProvider.Expect(mdp => mdp.SelectedAssessmentSection).Return(null);
             mergeDataProvider.Expect(mdp => mdp.SelectedFailureMechanisms).Return(Enumerable.Empty<IFailureMechanism>());
@@ -340,7 +340,7 @@
                                      });
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
             comparer.Expect(c => c.Compare(null, null)).IgnoreArguments().Return(true);
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             mergeDataProvider.Expect(mdp => mdp.SelectData(null)).IgnoreArguments().Return(true);
             mergeDataProvider.Expect(mdp => mdp.SelectedAssessmentSection).Return(new AssessmentSection(AssessmentSectionComposition.Dike));
             mergeDataProvider.Expect(mdp => mdp.SelectedFailureMechanisms).Return(null);
@@ -380,7 +380,7 @@
                                      });
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
             comparer.Expect(c => c.Compare(originalAssessmentSection, assessmentSectionToMerge)).Return(true);
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             mergeDataProvider.Expect(mdp => mdp.SelectData(null)).IgnoreArguments().Return(true);
             mergeDataProvider.Expect(mdp => mdp.SelectedAssessmentSection).Return(assessmentSectionToMerge);
             mergeDataProvider.Expect(mdp => mdp.SelectedFailureMechanisms).Return(failureMechanismsToMerge);
@@ -426,7 +426,7 @@
                                      });
             var comparer = mocks.StrictMock<IAssessmentSectionMergeComparer>();
             comparer.Expect(c => c.Compare(originalAssessmentSection, assessmentSectionToMerge)).Return(true);
-            var mergeDataProvider = mocks.StrictMock<IMergeDataProvider>();
+            var mergeDataProvider = mocks.StrictMock<IAssessmentSectionMergeDataProvider>();
             mergeDataProvider.Expect(mdp => mdp.SelectData(null)).IgnoreArguments().Return(true);
             mergeDataProvider.Expect(mdp => mdp.SelectedAssessmentSection).Return(assessmentSectionToMerge);
             mergeDataProvider.Expect(mdp => mdp.SelectedFailureMechanisms).Return(failureMechanismsToMerge);