Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresGuiPlugin.cs
===================================================================
diff -u -r213b20e92891887167ab4b031ca4a4b6250a4c2a -r585c9f51efb215f4ead02e4b2c9a69d51fbfd07c
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresGuiPlugin.cs	(.../HeightStructuresGuiPlugin.cs)	(revision 213b20e92891887167ab4b031ca4a4b6250a4c2a)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresGuiPlugin.cs	(.../HeightStructuresGuiPlugin.cs)	(revision 585c9f51efb215f4ead02e4b2c9a69d51fbfd07c)
@@ -24,10 +24,14 @@
 using Core.Common.Controls.TreeView;
 using Core.Common.Gui.Plugin;
 using Ringtoets.Common.Forms.TreeNodeInfos;
+using Ringtoets.HeightStructures.Data;
 using Ringtoets.HeightStructures.Forms.PresentationObjects;
 
 namespace Ringtoets.HeightStructures.Plugin
 {
+    /// <summary>
+    /// The GUI plug-in for the <see cref="HeightStructuresFailureMechanism"/>.
+    /// </summary>
     public class HeightStructuresGuiPlugin : GuiPlugin
     {
         public override IEnumerable<TreeNodeInfo> GetTreeNodeInfos()