Index: Riskeer/Common/src/Riskeer.Common.Forms/ChangeHandlers/ClearIllustrationPointsAndCloseViewOfCalculationCollectionChangeHandlerBase.cs
===================================================================
diff -u -r0b438fd8b8d8bee82908046923367b11f10219d7 -r76ad85c8088df25f304c23483a9c83ff3c0974d7
--- Riskeer/Common/src/Riskeer.Common.Forms/ChangeHandlers/ClearIllustrationPointsAndCloseViewOfCalculationCollectionChangeHandlerBase.cs	(.../ClearIllustrationPointsAndCloseViewOfCalculationCollectionChangeHandlerBase.cs)	(revision 0b438fd8b8d8bee82908046923367b11f10219d7)
+++ Riskeer/Common/src/Riskeer.Common.Forms/ChangeHandlers/ClearIllustrationPointsAndCloseViewOfCalculationCollectionChangeHandlerBase.cs	(.../ClearIllustrationPointsAndCloseViewOfCalculationCollectionChangeHandlerBase.cs)	(revision 76ad85c8088df25f304c23483a9c83ff3c0974d7)
@@ -58,8 +58,16 @@
             return PerformClearIllustrationPoints();
         }
 
+        /// <summary>
+        /// Performs the clear illustration points action.
+        /// </summary>
+        /// <returns>The affected objects by the operation.</returns>
         protected abstract IEnumerable<IObservable> PerformClearIllustrationPoints();
 
+        /// <summary>
+        /// Closes the views for the illustration points.
+        /// </summary>
+        /// <param name="viewCommands">The view commands used to close views for the illustration points.</param>
         protected abstract void CloseView(IViewCommands viewCommands);
     }
 }
\ No newline at end of file
Index: Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/ClearIllustrationPointsOfProbabilisticPipingCalculationChangeHandler.cs
===================================================================
diff -u -r341b3fcea09847a41958d38a2e3fe333b642433e -r76ad85c8088df25f304c23483a9c83ff3c0974d7
--- Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/ClearIllustrationPointsOfProbabilisticPipingCalculationChangeHandler.cs	(.../ClearIllustrationPointsOfProbabilisticPipingCalculationChangeHandler.cs)	(revision 341b3fcea09847a41958d38a2e3fe333b642433e)
+++ Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/ClearIllustrationPointsOfProbabilisticPipingCalculationChangeHandler.cs	(.../ClearIllustrationPointsOfProbabilisticPipingCalculationChangeHandler.cs)	(revision 76ad85c8088df25f304c23483a9c83ff3c0974d7)
@@ -45,6 +45,9 @@
             ProbabilisticPipingCalculationScenario calculation, IInquiryHelper inquiryHelper, IViewCommands viewCommands)
             : base(calculation, inquiryHelper, viewCommands) {}
 
+        /// <inheritdoc />
+        /// <exception cref="NotSupportedException">Thrown when a calculations has
+        /// <see cref="IPartialProbabilisticPipingOutput"/> that is of an unsupported type.</exception>
         public override bool ClearIllustrationPoints()
         {
             if (ProbabilisticPipingIllustrationPointsHelper.HasIllustrationPoints(Calculation))
@@ -53,6 +56,7 @@
                 {
                     CloseView(Calculation.Output.SectionSpecificOutput);
                 }
+
                 if (Calculation.Output.ProfileSpecificOutput.HasGeneralResult)
                 {
                     CloseView(Calculation.Output.ProfileSpecificOutput);
@@ -65,6 +69,11 @@
             return false;
         }
 
+        /// <summary>
+        /// Closes the view for the illustration points on the given <paramref name="partialOutput"/>.
+        /// </summary>
+        /// <param name="partialOutput">The output that contains the illustration points to close the view for.</param>
+        /// <exception cref="NotSupportedException">Thrown when <paramref name="partialOutput"/> is of an unsupported type.</exception>
         private void CloseView(IPartialProbabilisticPipingOutput partialOutput)
         {
             switch (partialOutput)
Index: Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/ClearIllustrationPointsOfProbabilisticPipingCalculationCollectionChangeHandler.cs
===================================================================
diff -u -rf8c36799332065e58d86cf219b911464072547e5 -r76ad85c8088df25f304c23483a9c83ff3c0974d7
--- Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/ClearIllustrationPointsOfProbabilisticPipingCalculationCollectionChangeHandler.cs	(.../ClearIllustrationPointsOfProbabilisticPipingCalculationCollectionChangeHandler.cs)	(revision f8c36799332065e58d86cf219b911464072547e5)
+++ Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/ClearIllustrationPointsOfProbabilisticPipingCalculationCollectionChangeHandler.cs	(.../ClearIllustrationPointsOfProbabilisticPipingCalculationCollectionChangeHandler.cs)	(revision 76ad85c8088df25f304c23483a9c83ff3c0974d7)
@@ -71,6 +71,9 @@
             return affectedObjects;
         }
 
+        /// <inheritdoc />
+        /// <exception cref="NotSupportedException">Thrown when a calculations has
+        /// <see cref="IPartialProbabilisticPipingOutput"/> that is of an unsupported type.</exception>
         protected override void CloseView(IViewCommands viewCommands)
         {
             foreach (ProbabilisticPipingCalculationScenario calculation in calculations.Where(ProbabilisticPipingIllustrationPointsHelper.HasIllustrationPoints))
@@ -92,6 +95,12 @@
             return RiskeerCommonFormsResources.ClearIllustrationPointsCalculationCollection_ConfirmationMessage;
         }
 
+        /// <summary>
+        /// Closes the view for the illustration points on the given <paramref name="partialOutput"/>.
+        /// </summary>
+        /// <param name="partialOutput">The output that contains the illustration points to close the view for.</param>
+        /// <param name="viewCommands">The view commands used to close views for the illustration points.</param>
+        /// <exception cref="NotSupportedException">Thrown when <paramref name="partialOutput"/> is of an unsupported type.</exception>
         private static void CloseView(IPartialProbabilisticPipingOutput partialOutput, IViewCommands viewCommands)
         {
             switch (partialOutput)