Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresFailureMechanism.cs	(.../ClosingStructuresFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresFailureMechanism.cs	(.../ClosingStructuresFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -94,16 +94,13 @@
         public override void AddSection(FailureMechanismSection section)
         {
             base.AddSection(section);
-
             sectionResults.Add(new StructuresFailureMechanismSectionResult<ClosingStructuresInput>(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresFailureMechanismTest.cs	(.../ClosingStructuresFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresFailureMechanismTest.cs	(.../ClosingStructuresFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -59,16 +59,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new ClosingStructuresFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -80,18 +74,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<StructuresFailureMechanismSectionResult<ClosingStructuresInput>>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new ClosingStructuresFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -103,8 +91,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -115,7 +101,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]
Index: Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil.Test/TestFailureMechanismTest.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil.Test/TestFailureMechanismTest.cs	(.../TestFailureMechanismTest.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil.Test/TestFailureMechanismTest.cs	(.../TestFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -81,16 +81,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new TestFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -102,18 +96,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<TestFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new TestFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -125,8 +113,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -137,7 +123,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/TestFailureMechanism.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/TestFailureMechanism.cs	(.../TestFailureMechanism.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/TestFailureMechanism.cs	(.../TestFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -62,14 +62,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new TestFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Data/DuneErosionFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Data/DuneErosionFailureMechanism.cs	(.../DuneErosionFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Data/DuneErosionFailureMechanism.cs	(.../DuneErosionFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -77,14 +77,12 @@
             base.AddSection(section);
 
             sectionResults.Add(new DuneErosionFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.Test/DuneErosionFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.Test/DuneErosionFailureMechanismTest.cs	(.../DuneErosionFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.Test/DuneErosionFailureMechanismTest.cs	(.../DuneErosionFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -49,16 +49,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new DuneErosionFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -70,18 +64,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<DuneErosionFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new DuneErosionFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -93,8 +81,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -105,7 +91,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsFailureMechanism.cs	(.../GrassCoverErosionInwardsFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsFailureMechanism.cs	(.../GrassCoverErosionInwardsFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -87,14 +87,12 @@
             base.AddSection(section);
 
             sectionResults.Add(new GrassCoverErosionInwardsFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanism.cs	(.../GrassCoverErosionOutwardsFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanism.cs	(.../GrassCoverErosionOutwardsFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -90,14 +90,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new GrassCoverErosionOutwardsFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismTest.cs	(.../GrassCoverErosionOutwardsFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismTest.cs	(.../GrassCoverErosionOutwardsFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -54,16 +54,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -75,18 +69,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<GrassCoverErosionOutwardsFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -98,8 +86,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -110,7 +96,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]
Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanism.cs	(.../HeightStructuresFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanism.cs	(.../HeightStructuresFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -97,14 +97,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new StructuresFailureMechanismSectionResult<HeightStructuresInput>(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismTest.cs	(.../HeightStructuresFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismTest.cs	(.../HeightStructuresFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -57,16 +57,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new HeightStructuresFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -78,18 +72,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<StructuresFailureMechanismSectionResult<HeightStructuresInput>>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new HeightStructuresFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -101,8 +89,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -113,7 +99,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/GrassCoverSlipOffInwardsFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/GrassCoverSlipOffInwardsFailureMechanism.cs	(.../GrassCoverSlipOffInwardsFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/GrassCoverSlipOffInwardsFailureMechanism.cs	(.../GrassCoverSlipOffInwardsFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -66,14 +66,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new GrassCoverSlipOffInwardsFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/GrassCoverSlipOffOutwardsFailureMechanism.cs
===================================================================
diff -u -r421cbbc8a7149960b5e6908bde1744c63e4d1169 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/GrassCoverSlipOffOutwardsFailureMechanism.cs	(.../GrassCoverSlipOffOutwardsFailureMechanism.cs)	(revision 421cbbc8a7149960b5e6908bde1744c63e4d1169)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/GrassCoverSlipOffOutwardsFailureMechanism.cs	(.../GrassCoverSlipOffOutwardsFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -66,14 +66,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new GrassCoverSlipOffOutwardsFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/MacroStabilityOutwardsFailureMechanism.cs
===================================================================
diff -u -r662c450b248dd4bdefd6b6eb102c752a456c5211 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/MacroStabilityOutwardsFailureMechanism.cs	(.../MacroStabilityOutwardsFailureMechanism.cs)	(revision 662c450b248dd4bdefd6b6eb102c752a456c5211)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/MacroStabilityOutwardsFailureMechanism.cs	(.../MacroStabilityOutwardsFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -74,14 +74,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new MacroStabilityOutwardsFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/MicrostabilityFailureMechanism.cs
===================================================================
diff -u -r29acf1af7ae26a676006ef5ba182f3ba71b80a8d -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/MicrostabilityFailureMechanism.cs	(.../MicrostabilityFailureMechanism.cs)	(revision 29acf1af7ae26a676006ef5ba182f3ba71b80a8d)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/MicrostabilityFailureMechanism.cs	(.../MicrostabilityFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -65,14 +65,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new MicrostabilityFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/PipingStructureFailureMechanism.cs
===================================================================
diff -u -rc626a0c2637418f6668ab006ed9ea27ab5e7c59c -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/PipingStructureFailureMechanism.cs	(.../PipingStructureFailureMechanism.cs)	(revision c626a0c2637418f6668ab006ed9ea27ab5e7c59c)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/PipingStructureFailureMechanism.cs	(.../PipingStructureFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -94,14 +94,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new PipingStructureFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/StrengthStabilityLengthwiseConstructionFailureMechanism.cs
===================================================================
diff -u -r4ecf8e8169bb8b6bf2d8023aefd4b1a7ef7e9949 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/StrengthStabilityLengthwiseConstructionFailureMechanism.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanism.cs)	(revision 4ecf8e8169bb8b6bf2d8023aefd4b1a7ef7e9949)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/StrengthStabilityLengthwiseConstructionFailureMechanism.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -66,14 +66,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new StrengthStabilityLengthwiseConstructionFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/TechnicalInnovationFailureMechanism.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/TechnicalInnovationFailureMechanism.cs	(.../TechnicalInnovationFailureMechanism.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/TechnicalInnovationFailureMechanism.cs	(.../TechnicalInnovationFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -65,14 +65,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new TechnicalInnovationFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/WaterPressureAsphaltCoverFailureMechanism.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/WaterPressureAsphaltCoverFailureMechanism.cs	(.../WaterPressureAsphaltCoverFailureMechanism.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/WaterPressureAsphaltCoverFailureMechanism.cs	(.../WaterPressureAsphaltCoverFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -66,14 +66,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new WaterPressureAsphaltCoverFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/GrassCoverSlipOffInwardsFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/GrassCoverSlipOffInwardsFailureMechanismTest.cs	(.../GrassCoverSlipOffInwardsFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/GrassCoverSlipOffInwardsFailureMechanismTest.cs	(.../GrassCoverSlipOffInwardsFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -47,16 +47,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new GrassCoverSlipOffInwardsFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -68,18 +62,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<GrassCoverSlipOffInwardsFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new GrassCoverSlipOffInwardsFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -91,8 +79,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -103,7 +89,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/GrassCoverSlipOffOutwardsFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/GrassCoverSlipOffOutwardsFailureMechanismTest.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/GrassCoverSlipOffOutwardsFailureMechanismTest.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -47,16 +47,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new GrassCoverSlipOffOutwardsFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -68,18 +62,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<GrassCoverSlipOffOutwardsFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new GrassCoverSlipOffOutwardsFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -91,8 +79,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -103,7 +89,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/MacroStabilityOutwardsFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/MacroStabilityOutwardsFailureMechanismTest.cs	(.../MacroStabilityOutwardsFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/MacroStabilityOutwardsFailureMechanismTest.cs	(.../MacroStabilityOutwardsFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -49,16 +49,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new MacroStabilityOutwardsFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -70,18 +64,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<MacroStabilityOutwardsFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new MacroStabilityOutwardsFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -93,8 +81,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -105,7 +91,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/MicrostabilityFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/MicrostabilityFailureMechanismTest.cs	(.../MicrostabilityFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/MicrostabilityFailureMechanismTest.cs	(.../MicrostabilityFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -47,16 +47,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new MicrostabilityFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -68,18 +62,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<MicrostabilityFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new MicrostabilityFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -91,8 +79,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -103,7 +89,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/PipingStructureFailureMechanismTest.cs
===================================================================
diff -u -rc626a0c2637418f6668ab006ed9ea27ab5e7c59c -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/PipingStructureFailureMechanismTest.cs	(.../PipingStructureFailureMechanismTest.cs)	(revision c626a0c2637418f6668ab006ed9ea27ab5e7c59c)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/PipingStructureFailureMechanismTest.cs	(.../PipingStructureFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -54,16 +54,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new PipingStructureFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -75,18 +69,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<PipingStructureFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new PipingStructureFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -98,8 +86,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -110,7 +96,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/StrengthStabilityLengthwiseConstructionFailureMechanismTest.cs
===================================================================
diff -u -r4ecf8e8169bb8b6bf2d8023aefd4b1a7ef7e9949 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/StrengthStabilityLengthwiseConstructionFailureMechanismTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismTest.cs)	(revision 4ecf8e8169bb8b6bf2d8023aefd4b1a7ef7e9949)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/StrengthStabilityLengthwiseConstructionFailureMechanismTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -47,16 +47,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new StrengthStabilityLengthwiseConstructionFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -68,18 +62,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<StrengthStabilityLengthwiseConstructionFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new StrengthStabilityLengthwiseConstructionFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -91,8 +79,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -103,7 +89,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/TechnicalInnovationFailureMechanismTest.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/TechnicalInnovationFailureMechanismTest.cs	(.../TechnicalInnovationFailureMechanismTest.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/TechnicalInnovationFailureMechanismTest.cs	(.../TechnicalInnovationFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -47,16 +47,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new TechnicalInnovationFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -68,18 +62,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<TechnicalInnovationFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new TechnicalInnovationFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -91,8 +79,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -103,7 +89,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/WaterPressureAsphaltCoverFailureMechanismTest.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/WaterPressureAsphaltCoverFailureMechanismTest.cs	(.../WaterPressureAsphaltCoverFailureMechanismTest.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/WaterPressureAsphaltCoverFailureMechanismTest.cs	(.../WaterPressureAsphaltCoverFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -47,16 +47,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new WaterPressureAsphaltCoverFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -68,18 +62,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<WaterPressureAsphaltCoverFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new WaterPressureAsphaltCoverFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -91,8 +79,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -103,7 +89,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanism.cs
===================================================================
diff -u -r662c450b248dd4bdefd6b6eb102c752a456c5211 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanism.cs	(.../MacroStabilityInwardsFailureMechanism.cs)	(revision 662c450b248dd4bdefd6b6eb102c752a456c5211)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanism.cs	(.../MacroStabilityInwardsFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -93,14 +93,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new MacroStabilityInwardsFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismTest.cs	(.../MacroStabilityInwardsFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismTest.cs	(.../MacroStabilityInwardsFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -115,16 +115,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new MacroStabilityInwardsFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -136,18 +130,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<MacroStabilityInwardsFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new MacroStabilityInwardsFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -159,8 +147,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -171,7 +157,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs	(.../PipingFailureMechanism.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs	(.../PipingFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -97,14 +97,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new PipingFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismTest.cs
===================================================================
diff -u -r46bd119497bde576fd18d0b4f93961f2a7f84c34 -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismTest.cs	(.../PipingFailureMechanismTest.cs)	(revision 46bd119497bde576fd18d0b4f93961f2a7f84c34)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismTest.cs	(.../PipingFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -117,16 +117,11 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
 
             var failureMechanism = new PipingFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -138,18 +133,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<PipingFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new PipingFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -161,8 +150,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -173,7 +160,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Data/StabilityPointStructuresFailureMechanism.cs
===================================================================
diff -u -rffbaaa780dcc561261a6030e315f50d198d5470b -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Data/StabilityPointStructuresFailureMechanism.cs	(.../StabilityPointStructuresFailureMechanism.cs)	(revision ffbaaa780dcc561261a6030e315f50d198d5470b)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Data/StabilityPointStructuresFailureMechanism.cs	(.../StabilityPointStructuresFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -95,14 +95,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new StructuresFailureMechanismSectionResult<StabilityPointStructuresInput>(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Data.Test/StabilityPointStructuresFailureMechanismTest.cs
===================================================================
diff -u -rffbaaa780dcc561261a6030e315f50d198d5470b -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Data.Test/StabilityPointStructuresFailureMechanismTest.cs	(.../StabilityPointStructuresFailureMechanismTest.cs)	(revision ffbaaa780dcc561261a6030e315f50d198d5470b)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Data.Test/StabilityPointStructuresFailureMechanismTest.cs	(.../StabilityPointStructuresFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -58,16 +58,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new StabilityPointStructuresFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -79,18 +73,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<StructuresFailureMechanismSectionResult<StabilityPointStructuresInput>>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new StabilityPointStructuresFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -102,8 +90,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -114,7 +100,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]
Index: Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Data/StabilityStoneCoverFailureMechanism.cs
===================================================================
diff -u -rc9f2366150c8b2c40beddf41fd65c2501808005f -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Data/StabilityStoneCoverFailureMechanism.cs	(.../StabilityStoneCoverFailureMechanism.cs)	(revision c9f2366150c8b2c40beddf41fd65c2501808005f)
+++ Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Data/StabilityStoneCoverFailureMechanism.cs	(.../StabilityStoneCoverFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -88,14 +88,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new StabilityStoneCoverFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Data.Test/StabilityStoneCoverFailureMechanismTest.cs
===================================================================
diff -u -rc9f2366150c8b2c40beddf41fd65c2501808005f -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Data.Test/StabilityStoneCoverFailureMechanismTest.cs	(.../StabilityStoneCoverFailureMechanismTest.cs)	(revision c9f2366150c8b2c40beddf41fd65c2501808005f)
+++ Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Data.Test/StabilityStoneCoverFailureMechanismTest.cs	(.../StabilityStoneCoverFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -54,16 +54,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new StabilityStoneCoverFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -75,18 +69,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<StabilityStoneCoverFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new StabilityStoneCoverFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -98,8 +86,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -110,7 +96,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]
Index: Ringtoets/WaveImpactAsphaltCover/src/Ringtoets.WaveImpactAsphaltCover.Data/WaveImpactAsphaltCoverFailureMechanism.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/WaveImpactAsphaltCover/src/Ringtoets.WaveImpactAsphaltCover.Data/WaveImpactAsphaltCoverFailureMechanism.cs	(.../WaveImpactAsphaltCoverFailureMechanism.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/WaveImpactAsphaltCover/src/Ringtoets.WaveImpactAsphaltCover.Data/WaveImpactAsphaltCoverFailureMechanism.cs	(.../WaveImpactAsphaltCoverFailureMechanism.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -95,14 +95,12 @@
         {
             base.AddSection(section);
             sectionResults.Add(new WaveImpactAsphaltCoverFailureMechanismSectionResult(section));
-            sectionResults.NotifyObservers();
         }
 
         public override void ClearAllSections()
         {
             base.ClearAllSections();
             sectionResults.Clear();
-            sectionResults.NotifyObservers();
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Data.Test/WaveImpactAsphaltCoverFailureMechanismTest.cs
===================================================================
diff -u -r7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc -r42c710f0341da1ca4fc911ef8ba502a41073e400
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Data.Test/WaveImpactAsphaltCoverFailureMechanismTest.cs	(.../WaveImpactAsphaltCoverFailureMechanismTest.cs)	(revision 7ca5ac0a391cd964f00b18ea8ab42bce5f5d46cc)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Data.Test/WaveImpactAsphaltCoverFailureMechanismTest.cs	(.../WaveImpactAsphaltCoverFailureMechanismTest.cs)	(revision 42c710f0341da1ca4fc911ef8ba502a41073e400)
@@ -55,16 +55,10 @@
         }
 
         [Test]
-        public void AddSection_WithSection_AddedSectionResultAndNotifiesObserver()
+        public void AddSection_WithSection_AddedSectionResult()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism();
-            failureMechanism.SectionResults.Attach(observer);
 
             // Call
             failureMechanism.AddSection(new FailureMechanismSection(string.Empty, new[]
@@ -76,18 +70,12 @@
             Assert.AreEqual(1, failureMechanism.Sections.Count());
             Assert.AreEqual(1, failureMechanism.SectionResults.Count());
             Assert.IsInstanceOf<WaveImpactAsphaltCoverFailureMechanismSectionResult>(failureMechanism.SectionResults.ElementAt(0));
-            mocks.VerifyAll();
         }
 
         [Test]
-        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsClearedAndNotifiesObserver()
+        public void ClearAllSections_WithSectionsAndSectionResults_SectionsAndSectionResultsCleared()
         {
             // Setup
-            var mocks = new MockRepository();
-            var observer = mocks.StrictMock<IObserver>();
-            observer.Expect(o => o.UpdateObserver());
-            mocks.ReplayAll();
-
             var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism();
 
             failureMechanism.AddSection(new FailureMechanismSection("", new[]
@@ -99,8 +87,6 @@
                 new Point2D(2, 1)
             }));
 
-            failureMechanism.SectionResults.Attach(observer);
-
             // Precondition
             Assert.AreEqual(2, failureMechanism.Sections.Count());
             Assert.AreEqual(2, failureMechanism.SectionResults.Count());
@@ -111,7 +97,6 @@
             // Assert
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
-            mocks.VerifyAll();
         }
 
         [Test]