Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.KernelWrapper/Calculators/Assembly/IFailureMechanismSectionAssemblyCalculator.cs
===================================================================
diff -u -rcb4699ab3f0ba6a23e21650ec8cec52d82d0777b -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.KernelWrapper/Calculators/Assembly/IFailureMechanismSectionAssemblyCalculator.cs	(.../IFailureMechanismSectionAssemblyCalculator.cs)	(revision cb4699ab3f0ba6a23e21650ec8cec52d82d0777b)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.KernelWrapper/Calculators/Assembly/IFailureMechanismSectionAssemblyCalculator.cs	(.../IFailureMechanismSectionAssemblyCalculator.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -57,8 +57,6 @@
         /// <returns>A <see cref="FailureMechanismSectionAssembly"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="categories"/>
         /// is <c>null</c>.</exception>
-        /// <exception cref="ArgumentException">Thrown when <paramref name="categories"/>
-        /// contains items that are <c>null</c>.</exception>
         /// <exception cref="FailureMechanismSectionAssemblyCalculatorException">Thrown when
         /// an error occurs when performing the assembly.</exception>
         FailureMechanismSectionAssembly AssembleDetailedAssessment(double probability, IEnumerable<FailureMechanismSectionAssemblyCategory> categories);
@@ -72,8 +70,6 @@
         /// <returns>A <see cref="FailureMechanismSectionAssembly"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="categories"/>
         /// is <c>null</c>.</exception>
-        /// <exception cref="ArgumentException">Thrown when <paramref name="categories"/>
-        /// contains items that are <c>null</c>.</exception>
         /// <exception cref="FailureMechanismSectionAssemblyCalculatorException">Thrown when
         /// an error occurs when performing the assembly.</exception>
         FailureMechanismSectionAssembly AssembleDetailedAssessment(double probability,
Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.KernelWrapper/Creators/FailureMechanismSectionAssemblyCalculatorInputCreator.cs
===================================================================
diff -u -rd8d1d5d4a3eabd84c2d6e07eedb75fa200c2d54e -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.KernelWrapper/Creators/FailureMechanismSectionAssemblyCalculatorInputCreator.cs	(.../FailureMechanismSectionAssemblyCalculatorInputCreator.cs)	(revision d8d1d5d4a3eabd84c2d6e07eedb75fa200c2d54e)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.KernelWrapper/Creators/FailureMechanismSectionAssemblyCalculatorInputCreator.cs	(.../FailureMechanismSectionAssemblyCalculatorInputCreator.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -141,7 +141,8 @@
         /// <param name="categories">A collection of <see cref="FailureMechanismSectionAssemblyCategory"/> to
         /// create the input for.</param>
         /// <param name="n">The 'N' parameter used to factor in the 'length effect'.</param>
-        /// <returns>The created <see cref="DetailedCalculationInputFromProbabilityWithLengthEffect"/>.</returns>\<exception cref="ArgumentNullException">Thrown when <paramref name="categories"/>
+        /// <returns>The created <see cref="DetailedCalculationInputFromProbabilityWithLengthEffect"/>.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="categories"/>
         /// is <c>null</c>.</exception>
         /// <exception cref="InvalidEnumArgumentException">Thrown when <see cref="categories"/> contains
         /// an invalid <see cref="FailureMechanismSectionAssemblyCategoryGroup"/>.</exception>
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Test/Calculators/Assembly/FailureMechanismSectionAssemblyCalculatorStubTest.cs
===================================================================
diff -u -rad607a97ef8cdcdfe5909e73f590008a5b1b904b -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Test/Calculators/Assembly/FailureMechanismSectionAssemblyCalculatorStubTest.cs	(.../FailureMechanismSectionAssemblyCalculatorStubTest.cs)	(revision ad607a97ef8cdcdfe5909e73f590008a5b1b904b)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Test/Calculators/Assembly/FailureMechanismSectionAssemblyCalculatorStubTest.cs	(.../FailureMechanismSectionAssemblyCalculatorStubTest.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using Core.Common.TestUtil;
 using NUnit.Framework;
@@ -177,25 +178,16 @@
             // Setup
             var random = new Random(39);
             double probability = random.NextDouble();
-            double lowerBoundary = random.NextDouble();
-            double upperBoundary = random.NextDouble();
-            var assemblyCategory = new FailureMechanismSectionAssemblyCategory(lowerBoundary,
-                                                                               upperBoundary,
-                                                                               FailureMechanismSectionAssemblyCategoryGroup.IIv);
 
+            IEnumerable<FailureMechanismSectionAssemblyCategory> categoryInput = Enumerable.Empty<FailureMechanismSectionAssemblyCategory>();
             var calculator = new FailureMechanismSectionAssemblyCalculatorStub();
 
             // Call
-            calculator.AssembleDetailedAssessment(
-                probability,
-                new[]
-                {
-                    assemblyCategory
-                });
+            calculator.AssembleDetailedAssessment(probability, categoryInput);
 
             // Assert
             Assert.AreEqual(probability, calculator.DetailedAssessmentProbabilityInput);
-            Assert.AreSame(assemblyCategory, calculator.DetailedAssessmentCategoriesInput.Single());
+            Assert.AreSame(categoryInput, calculator.DetailedAssessmentCategoriesInput);
         }
 
         [Test]
@@ -253,29 +245,19 @@
             // Setup
             var random = new Random(39);
             double probability = random.NextDouble();
-            double lowerBoundary = random.NextRoundedDouble(0.0, 0.5);
-            double upperBoundary = random.NextRoundedDouble(0.6, 1.0);
             double n = random.NextRoundedDouble(1.0, 10.0);
-            var assemblyCategory = new FailureMechanismSectionAssemblyCategory(lowerBoundary,
-                                                                               upperBoundary,
-                                                                               FailureMechanismSectionAssemblyCategoryGroup.IIv);
 
+            IEnumerable<FailureMechanismSectionAssemblyCategory> categoriesInput = Enumerable.Empty<FailureMechanismSectionAssemblyCategory>();
             var calculator = new FailureMechanismSectionAssemblyCalculatorStub();
 
             // Call
-            calculator.AssembleDetailedAssessment(
-                probability,
-                new[]
-                {
-                    assemblyCategory
-                },
-                n);
+            calculator.AssembleDetailedAssessment(probability, categoriesInput, n);
 
             // Assert
             Assert.AreEqual(probability, calculator.DetailedAssessmentProbabilityInput);
             Assert.AreEqual(n, calculator.DetailedAssessmentNInput);
 
-            Assert.AreSame(assemblyCategory, calculator.DetailedAssessmentCategoriesInput.Single());
+            Assert.AreSame(categoriesInput, calculator.DetailedAssessmentCategoriesInput);
         }
 
         [Test]
Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -rd8d1d5d4a3eabd84c2d6e07eedb75fa200c2d54e -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../GrassCoverErosionInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision d8d1d5d4a3eabd84c2d6e07eedb75fa200c2d54e)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../GrassCoverErosionInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -32,7 +32,7 @@
 namespace Ringtoets.GrassCoverErosionInwards.Data
 {
     /// <summary>
-    /// Factory for assembling assembly results for closing structures failure mechanism section results.
+    /// Factory for assembling assembly results for grass cover erosion inwards failure mechanism section results.
     /// </summary>
     public static class GrassCoverErosionInwardsFailureMechanismSectionResultAssemblyFactory
     {
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -rd8d1d5d4a3eabd84c2d6e07eedb75fa200c2d54e -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision d8d1d5d4a3eabd84c2d6e07eedb75fa200c2d54e)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -33,7 +33,7 @@
 namespace Ringtoets.MacroStabilityInwards.Data
 {
     /// <summary>
-    /// Factory for assembling assembly results for piping failure mechanism section results.
+    /// Factory for assembling assembly results for macro stability inwards failure mechanism section results.
     /// </summary>
     public static class MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory
     {
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs
===================================================================
diff -u -r3ff0bedb91e7c24a41f6fee398f259210e9742b3 -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs)	(revision 3ff0bedb91e7c24a41f6fee398f259210e9742b3)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -535,7 +535,7 @@
         }
 
         [Test]
-        public void GetCalculationScenarios_WithNotIntersectingScenario_ReturnsNoCalculationScenarios()
+        public void GetCalculationScenarios_WithoutScenarioIntersectingSection_ReturnsNoCalculationScenarios()
         {
             // Setup
             FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection(new[]
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs
===================================================================
diff -u -r3ff0bedb91e7c24a41f6fee398f259210e9742b3 -r5ac330cbf482b60883be8428b68ab1bde6848eeb
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs	(.../PipingFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs)	(revision 3ff0bedb91e7c24a41f6fee398f259210e9742b3)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs	(.../PipingFailureMechanismSectionResultDetailedAssessmentExtensionsTest.cs)	(revision 5ac330cbf482b60883be8428b68ab1bde6848eeb)
@@ -507,7 +507,7 @@
         }
 
         [Test]
-        public void GetCalculationScenarios_WithNotIntersectingScenario_ReturnsNoCalculationScenarios()
+        public void GetCalculationScenarios_WithoutScenarioIntersectingSection_ReturnsNoCalculationScenarios()
         {
             // Setup
             FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection(new[]