Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/IAssessmentSectionMergeHandler.cs
===================================================================
diff -u -r1604f9968c87181d6e94d89b287fc8dd5a85854b -r7c6b0a809f0c14f6192e9518a92192bf59aafd15
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/IAssessmentSectionMergeHandler.cs	(.../IAssessmentSectionMergeHandler.cs)	(revision 1604f9968c87181d6e94d89b287fc8dd5a85854b)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/IAssessmentSectionMergeHandler.cs	(.../IAssessmentSectionMergeHandler.cs)	(revision 7c6b0a809f0c14f6192e9518a92192bf59aafd15)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Integration.Data;
+using Ringtoets.Integration.Data.Merge;
 
 namespace Ringtoets.Integration.Plugin.Merge
 {
@@ -40,5 +41,13 @@
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
         void PerformMerge(AssessmentSection targetAssessmentSection, AssessmentSection sourceAssessmentSection,
                           IEnumerable<IFailureMechanism> failureMechanismsToMerge);
+
+        /// <summary>
+        /// Performs the merge.
+        /// </summary>
+        /// <param name="targetAssessmentSection">The assessment section to merge to.</param>
+        /// <param name="mergeData">The data to merge.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        void PerformMerge(AssessmentSection targetAssessmentSection, AssessmentSectionMergeData mergeData);
     }
 }
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