Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultCategoriesView.Designer.cs
===================================================================
diff -u -r783cff34ad1121a4898d0e9c1928d7397539f97d -r6e00873d8ba2508abd6040c1c7254d4d4bb6ded8
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultCategoriesView.Designer.cs	(.../AssemblyResultCategoriesView.Designer.cs)	(revision 783cff34ad1121a4898d0e9c1928d7397539f97d)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultCategoriesView.Designer.cs	(.../AssemblyResultCategoriesView.Designer.cs)	(revision 6e00873d8ba2508abd6040c1c7254d4d4bb6ded8)
@@ -30,19 +30,6 @@
         /// </summary>
         private System.ComponentModel.IContainer components = null;
 
-        /// <summary> 
-        /// Clean up any resources being used.
-        /// </summary>
-        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
         #region Component Designer generated code
 
         /// <summary> 
Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultCategoriesView.cs
===================================================================
diff -u -rebc35a25d5150f2dee8dd31638d462769e0c185f -r6e00873d8ba2508abd6040c1c7254d4d4bb6ded8
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultCategoriesView.cs	(.../AssemblyResultCategoriesView.cs)	(revision ebc35a25d5150f2dee8dd31638d462769e0c185f)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/AssemblyResultCategoriesView.cs	(.../AssemblyResultCategoriesView.cs)	(revision 6e00873d8ba2508abd6040c1c7254d4d4bb6ded8)
@@ -24,6 +24,7 @@
 using System.Drawing;
 using System.Linq;
 using System.Windows.Forms;
+using Core.Common.Base;
 using Core.Common.Controls.Views;
 using Ringtoets.AssemblyTool.Data;
 using Ringtoets.Common.Forms.Helpers;
@@ -38,6 +39,9 @@
     {
         private readonly Func<IEnumerable<FailureMechanismAssemblyCategory>> getAssemblyCategoriesFunc;
 
+        private readonly Observer assessmentSectionObserver;
+        private readonly Observer failureMechanismContributionObserver;
+
         /// <summary>
         /// Creates a new instance of <see cref="AssemblyResultCategoriesView"/>.
         /// </summary>
@@ -62,13 +66,34 @@
 
             InitializeComponent();
 
+            assessmentSectionObserver = new Observer(UpdateTableData)
+            {
+                Observable = assessmentSection
+            };
+
+            failureMechanismContributionObserver = new Observer(UpdateTableData)
+            {
+                Observable = assessmentSection.FailureMechanismContribution
+            };
+
             UpdateTableData();
         }
 
         public AssessmentSection AssessmentSection { get; }
 
         public object Data { get; set; }
 
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                assessmentSectionObserver.Dispose();
+                failureMechanismContributionObserver.Dispose();
+                components?.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
         private void UpdateTableData()
         {
             assemblyCategoriesTable.SetData(
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/AssemblyResultCategoriesViewTest.cs
===================================================================
diff -u -rebc35a25d5150f2dee8dd31638d462769e0c185f -r6e00873d8ba2508abd6040c1c7254d4d4bb6ded8
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/AssemblyResultCategoriesViewTest.cs	(.../AssemblyResultCategoriesViewTest.cs)	(revision ebc35a25d5150f2dee8dd31638d462769e0c185f)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/AssemblyResultCategoriesViewTest.cs	(.../AssemblyResultCategoriesViewTest.cs)	(revision 6e00873d8ba2508abd6040c1c7254d4d4bb6ded8)
@@ -111,6 +111,60 @@
             }
         }
 
+        [Test]
+        public void GivenViewWithValidData_WhenAssessmentSectionUpdated_ThenDataTableUpdated()
+        {
+            // Given
+            var random = new Random(21);
+
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike);
+            var nrOfCategories = 1;
+            Func<IEnumerable<FailureMechanismAssemblyCategory>> getFailureMechanismCategories =
+                () => Enumerable.Repeat(CreateRandomFailureMechanismAssemblyCategory(random), nrOfCategories);
+
+            using (var view = new AssemblyResultCategoriesView(assessmentSection, getFailureMechanismCategories))
+            {
+                AssemblyCategoriesTable<FailureMechanismAssemblyCategoryGroup> failureMechanismSectionCategoriesTable = GetFailureMechanismCategoriesTable(view);
+
+                // Precondition
+                Assert.AreEqual(nrOfCategories, failureMechanismSectionCategoriesTable.Rows.Count);
+
+                // When
+                nrOfCategories = 2;
+                assessmentSection.NotifyObservers();
+
+                // Then
+                Assert.AreEqual(nrOfCategories, failureMechanismSectionCategoriesTable.Rows.Count);
+            }
+        }
+
+        [Test]
+        public void GivenViewWithValidData_WhenFailureMechanismContributionUpdated_ThenDataTableUpdated()
+        {
+            // Given
+            var random = new Random(21);
+
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike);
+            var nrOfCategories = 1;
+            Func<IEnumerable<FailureMechanismAssemblyCategory>> getFailureMechanismCategories =
+                () => Enumerable.Repeat(CreateRandomFailureMechanismAssemblyCategory(random), nrOfCategories);
+
+            using (var view = new AssemblyResultCategoriesView(assessmentSection, getFailureMechanismCategories))
+            {
+                AssemblyCategoriesTable<FailureMechanismAssemblyCategoryGroup> failureMechanismSectionCategoriesTable = GetFailureMechanismCategoriesTable(view);
+
+                // Precondition
+                Assert.AreEqual(nrOfCategories, failureMechanismSectionCategoriesTable.Rows.Count);
+
+                // When
+                nrOfCategories = 2;
+                assessmentSection.FailureMechanismContribution.NotifyObservers();
+
+                // Then
+                Assert.AreEqual(nrOfCategories, failureMechanismSectionCategoriesTable.Rows.Count);
+            }
+        }
+
         private static AssemblyCategoriesTable<FailureMechanismAssemblyCategoryGroup> GetFailureMechanismCategoriesTable(
             AssemblyResultCategoriesView view)
         {