Index: Riskeer/Common/src/Riskeer.Common.Forms/Controls/LengthEffectSettingsControl.cs
===================================================================
diff -u -r9c7b3107f26b93cea9eccd91b0821e3dbf66fcbf -r0dedee5ed4420b72929f83d86b139569fe8ee5cb
--- Riskeer/Common/src/Riskeer.Common.Forms/Controls/LengthEffectSettingsControl.cs	(.../LengthEffectSettingsControl.cs)	(revision 9c7b3107f26b93cea9eccd91b0821e3dbf66fcbf)
+++ Riskeer/Common/src/Riskeer.Common.Forms/Controls/LengthEffectSettingsControl.cs	(.../LengthEffectSettingsControl.cs)	(revision 0dedee5ed4420b72929f83d86b139569fe8ee5cb)
@@ -21,7 +21,6 @@
 
 using System;
 using System.Windows.Forms;
-using Core.Common.Base;
 using Core.Common.Base.Data;
 using Core.Common.Base.Exceptions;
 using Core.Common.Base.Helpers;
@@ -38,21 +37,18 @@
     {
         private const int lengthEffectNNrOfDecimals = 2;
 
-        private readonly Observer scenarioConfigurationObserver;
         private double b;
         private ScenarioConfigurationPerFailureMechanismSection scenarioConfigurationPerFailureMechanismSection;
 
         private bool isParameterAUpdating;
 
         /// <summary>
-        /// Creates a new instance of <see cref="LengthEffectSettingsControl"/>
+        /// Creates a new instance of <see cref="LengthEffectSettingsControl"/>.
         /// </summary>
         public LengthEffectSettingsControl()
         {
             InitializeComponent();
             InitializeToolTips();
-            
-            scenarioConfigurationObserver = new Observer(UpdateLengthEffectData);
         }
 
         /// <summary>
@@ -75,7 +71,6 @@
 
             this.b = b;
             scenarioConfigurationPerFailureMechanismSection = scenarioConfiguration;
-            scenarioConfigurationObserver.Observable = scenarioConfiguration;
 
             UpdateLengthEffectData();
 
@@ -90,7 +85,6 @@
             isParameterAUpdating = true;
             scenarioConfigurationPerFailureMechanismSection = null;
 
-            scenarioConfigurationObserver.Observable = scenarioConfigurationPerFailureMechanismSection;
             ClearLengthEffectErrorMessage();
             ClearLengthEffectData();
 
@@ -101,8 +95,6 @@
 
         protected override void Dispose(bool disposing)
         {
-            scenarioConfigurationObserver.Dispose();
-
             if (disposing && (components != null))
             {
                 components.Dispose();
Index: Riskeer/Common/test/Riskeer.Common.Forms.Test/Controls/LengthEffectSettingsControlTest.cs
===================================================================
diff -u -r71306fd8f94f6182c34d9ef7e296d417ef830b10 -r0dedee5ed4420b72929f83d86b139569fe8ee5cb
--- Riskeer/Common/test/Riskeer.Common.Forms.Test/Controls/LengthEffectSettingsControlTest.cs	(.../LengthEffectSettingsControlTest.cs)	(revision 71306fd8f94f6182c34d9ef7e296d417ef830b10)
+++ Riskeer/Common/test/Riskeer.Common.Forms.Test/Controls/LengthEffectSettingsControlTest.cs	(.../LengthEffectSettingsControlTest.cs)	(revision 0dedee5ed4420b72929f83d86b139569fe8ee5cb)
@@ -78,7 +78,7 @@
             // Assert
             Label parameterALabel = GetParameterALabel();
             var parameterAToolTip = TypeUtils.GetField<ToolTip>(view, "parameterAToolTip");
-            
+
             Assert.AreEqual("Mechanismegevoelige fractie van het dijkvak.",
                             parameterAToolTip.GetToolTip(parameterALabel));
             Assert.AreEqual(5000, parameterAToolTip.AutoPopDelay);
@@ -393,39 +393,6 @@
         }
 
         [Test]
-        public void GivenControlWithConfiguration_WhenConfigurationNotifiesObservers_ThenControlsUpdated()
-        {
-            // Given
-            const double a = 0.4;
-            const double b = 300;
-
-            FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection(new[]
-            {
-                new Point2D(0, 0),
-                new Point2D(100, 0)
-            });
-            var scenarioConfiguration = new TestScenarioConfigurationPerFailureMechanismSection(section, (RoundedDouble) a);
-
-            LengthEffectSettingsControl settingsControl = ShowLengthEffectSettingsControl();
-            settingsControl.SetData(scenarioConfiguration, b);
-
-            // Precondition
-            TextBoxTester parameterATextBoxTester = GetParameterATextBoxTester();
-            Assert.AreEqual("0,400", parameterATextBoxTester.Text);
-
-            TextBox lengthEffectNRoundedTextBox = GetLengthEffectNRoundedTextBox();
-            Assert.AreEqual("1,13", lengthEffectNRoundedTextBox.Text);
-
-            // When
-            scenarioConfiguration.A = (RoundedDouble) 0.7;
-            scenarioConfiguration.NotifyObservers();
-
-            // Then
-            Assert.AreEqual("0,700", parameterATextBoxTester.Text);
-            Assert.AreEqual("1,23", lengthEffectNRoundedTextBox.Text);
-        }
-
-        [Test]
         public void GivenControlWithConfiguration_WhenDataClearedAndConfigurationNotifiesObservers_ThenControlsNotUpdated()
         {
             // Given