Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/DuneAssessmentSection.cs
===================================================================
diff -u -r34955c174d61a12249d526629093343389c8c8ca -r5c044a6799b45bec77af170dca0a84bc434c5f6f
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/DuneAssessmentSection.cs	(.../DuneAssessmentSection.cs)	(revision 34955c174d61a12249d526629093343389c8c8ca)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/DuneAssessmentSection.cs	(.../DuneAssessmentSection.cs)	(revision 5c044a6799b45bec77af170dca0a84bc434c5f6f)
@@ -1,5 +1,6 @@
-using Core.Common.Base;
+using System.Collections.Generic;
 
+using Ringtoets.Common.Data;
 using Ringtoets.Integration.Data.Placeholders;
 using Ringtoets.Integration.Data.Properties;
 
@@ -8,44 +9,26 @@
     /// <summary>
     /// The dune-based section to be assessed by the user for safety in regards of various failure mechanisms.
     /// </summary>
-    public class DuneAssessmentSection : Observable
+    public class DuneAssessmentSection : AssessmentSectionBase
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="DuneAssessmentSection"/> class.
         /// </summary>
         public DuneAssessmentSection()
         {
             Name = Resources.DuneAssessmentSection_DisplayName;
-            ReferenceLine = new InputPlaceholder(Resources.ReferenceLine_DisplayName);
-            FailureMechanismContribution = new InputPlaceholder(Resources.FailureMechanismContribution_DisplayName);
-            HydraulicBoundaryDatabase = new InputPlaceholder(Resources.HydraulicBoundaryDatabase_DisplayName);
 
             DuneErosionFailureMechanism = new FailureMechanismPlaceholder(Resources.DuneErosionFailureMechanism_DisplayName);
         }
 
         /// <summary>
-        /// Gets or sets the name of the dune assessment section.
-        /// </summary>
-        public string Name { get; set; }
-
-        /// <summary>
-        /// Gets or sets the reference line defining the geometry of the dike assessment section.
-        /// </summary>
-        public InputPlaceholder ReferenceLine { get; private set; }
-
-        /// <summary>
-        /// Gets or sets the contribution of each failure mechanism available in this assessment section.
-        /// </summary>
-        public InputPlaceholder FailureMechanismContribution { get; private set; }
-
-        /// <summary>
-        /// Gets or sets the hydraulic boundary database.
-        /// </summary>
-        public InputPlaceholder HydraulicBoundaryDatabase { get; private set; }
-
-        /// <summary>
         /// Gets the "Duin erosie" failure mechanism.
         /// </summary>
         public FailureMechanismPlaceholder DuneErosionFailureMechanism { get; private set; }
+
+        public override IEnumerable<IFailureMechanism> GetFailureMechanisms()
+        {
+            yield return DuneErosionFailureMechanism;
+        }
     }
 }
\ No newline at end of file