Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -rd4cce2ae108af5d3fd689019d57793a440166f82 -r8c799e8ee97c6f3e700026f7280d55d17693f740
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision d4cce2ae108af5d3fd689019d57793a440166f82)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision 8c799e8ee97c6f3e700026f7280d55d17693f740)
@@ -29,7 +29,6 @@
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Exceptions;
 using Ringtoets.Common.Data.Probability;
-using Ringtoets.Common.Primitives;
 
 namespace Ringtoets.MacroStabilityInwards.Data
 {
@@ -114,19 +113,15 @@
 
             try
             {
-                IEnumerable<FailureMechanismSectionAssemblyCategory> categories =
-                    AssemblyToolCategoriesFactory.CreateFailureMechanismSectionAssemblyCategories(
-                        assessmentSection.FailureMechanismContribution.SignalingNorm,
-                        assessmentSection.FailureMechanismContribution.LowerLimitNorm,
-                        failureMechanism.Contribution,
-                        failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(
-                            failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.SectionLength));
-
                 return calculator.AssembleDetailedAssessment(
                     failureMechanismSectionResult.DetailedAssessmentResult,
                     failureMechanismSectionResult.GetDetailedAssessmentProbability(calculationScenarios, failureMechanism, assessmentSection),
-                    categories,
-                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(failureMechanismSectionResult.Section.Length));
+                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(failureMechanismSectionResult.Section.Length),
+                    new AssemblyCategoriesInput(failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(
+                                                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.SectionLength),
+                                                failureMechanism.Contribution,
+                                                assessmentSection.FailureMechanismContribution.SignalingNorm,
+                                                assessmentSection.FailureMechanismContribution.LowerLimitNorm));
             }
             catch (FailureMechanismSectionAssemblyCalculatorException e)
             {
@@ -171,18 +166,15 @@
 
             try
             {
-                IEnumerable<FailureMechanismSectionAssemblyCategory> categories =
-                    AssemblyToolCategoriesFactory.CreateFailureMechanismSectionAssemblyCategories(
-                        assessmentSection.FailureMechanismContribution.SignalingNorm,
-                        assessmentSection.FailureMechanismContribution.LowerLimitNorm,
-                        failureMechanism.Contribution,
-                        failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.SectionLength));
-
-                return calculator.AssembleTailorMadeAssessment(
+               return calculator.AssembleTailorMadeAssessment(
                     failureMechanismSectionResult.TailorMadeAssessmentResult,
                     failureMechanismSectionResult.TailorMadeAssessmentProbability,
-                    categories,
-                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(failureMechanismSectionResult.Section.Length));
+                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(failureMechanismSectionResult.Section.Length),
+                    new AssemblyCategoriesInput(failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(
+                                                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.SectionLength),
+                                                failureMechanism.Contribution,
+                                                assessmentSection.FailureMechanismContribution.SignalingNorm,
+                                                assessmentSection.FailureMechanismContribution.LowerLimitNorm));
             }
             catch (FailureMechanismSectionAssemblyCalculatorException e)
             {