Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Forms/Views/StabilityPointStructuresFailureMechanismSectionResultRow.cs
===================================================================
diff -u -r3a1246401dbe3ee905bc595a9e23e184fe8f4767 -r0cd69ba0625074aa3562ee931d873286f63cf213
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Forms/Views/StabilityPointStructuresFailureMechanismSectionResultRow.cs	(.../StabilityPointStructuresFailureMechanismSectionResultRow.cs)	(revision 3a1246401dbe3ee905bc595a9e23e184fe8f4767)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Forms/Views/StabilityPointStructuresFailureMechanismSectionResultRow.cs	(.../StabilityPointStructuresFailureMechanismSectionResultRow.cs)	(revision 0cd69ba0625074aa3562ee931d873286f63cf213)
@@ -78,11 +78,27 @@
             set
             {
                 SectionResult.SimpleAssessmentResult = value;
-                SectionResult.NotifyObservers();
+                UpdateInternalData();
             }
         }
 
         /// <summary>
+        /// Gets or sets the value representing the detailed assessment result.
+        /// </summary>
+        public DetailedAssessmentResultType DetailedAssessmentResult
+        {
+            get
+            {
+                return SectionResult.DetailedAssessmentResult;
+            }
+            set
+            {
+                SectionResult.DetailedAssessmentResult = value;
+                UpdateInternalData();
+            }
+        }
+
+        /// <summary>
         /// Gets the value representing the detailed assessment probability.
         /// </summary>
         [TypeConverter(typeof(NoProbabilityValueDoubleConverter))]
@@ -109,7 +125,7 @@
             set
             {
                 SectionResult.TailorMadeAssessmentProbability = value;
-                SectionResult.NotifyObservers();
+                UpdateInternalData();
             }
         }
 
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Forms.Test/Views/StabilityPointStructuresFailureMechanismSectionResultRowTest.cs
===================================================================
diff -u -rff428147b6ee62d94b59882a10352f3832c4ec30 -r0cd69ba0625074aa3562ee931d873286f63cf213
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Forms.Test/Views/StabilityPointStructuresFailureMechanismSectionResultRowTest.cs	(.../StabilityPointStructuresFailureMechanismSectionResultRowTest.cs)	(revision ff428147b6ee62d94b59882a10352f3832c4ec30)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Forms.Test/Views/StabilityPointStructuresFailureMechanismSectionResultRowTest.cs	(.../StabilityPointStructuresFailureMechanismSectionResultRowTest.cs)	(revision 0cd69ba0625074aa3562ee931d873286f63cf213)
@@ -137,6 +137,36 @@
         }
 
         [Test]
+        public void DetailedAssessmentResult_SetNewValue_NotifyObserversAndPropertyChanged()
+        {
+            // Setup
+            var failureMechanism = new StabilityPointStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            var observer = mocks.StrictMock<IObserver>();
+            observer.Expect(o => o.UpdateObserver());
+            mocks.ReplayAll();
+
+            var random = new Random(39);
+            var newValue = random.NextEnumValue<DetailedAssessmentResultType>();
+
+            FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var result = new StabilityPointStructuresFailureMechanismSectionResult(section);
+            result.Attach(observer);
+
+            var row = new StabilityPointStructuresFailureMechanismSectionResultRow(
+                result, failureMechanism, assessmentSection);
+
+            // Call
+            row.DetailedAssessmentResult = newValue;
+
+            // Assert
+            Assert.AreEqual(newValue, result.DetailedAssessmentResult);
+            mocks.VerifyAll();
+        }
+
+        [Test]
         public void DetailedAssessmentProbability_NoCalculationSet_ReturnNaN()
         {
             // Setup