Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -r02a11872033c745f92623cedf5dcd8136048e255 -r6488da4fef46e82f140d0af313e0d615d1985d1c
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision 02a11872033c745f92623cedf5dcd8136048e255)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision 6488da4fef46e82f140d0af313e0d615d1985d1c)
@@ -28,6 +28,7 @@
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Exceptions;
 using Ringtoets.Common.Data.Probability;
+using Ringtoets.Common.Primitives;
 
 namespace Ringtoets.MacroStabilityInwards.Data
 {
@@ -238,5 +239,91 @@
                 throw new AssemblyException(e.Message, e);
             }
         }
+
+        /// <summary>
+        /// Assembles the failure mechanism assembly.
+        /// </summary>
+        /// <param name="failureMechanismSectionResults">The failure mechanism section results to
+        /// get the assembly for.</param>
+        /// <param name="calculationScenarios">The calculation scenarios belonging to this failure mechanism.</param>
+        /// <param name="failureMechanism">The failure mechanism this to assemble for.</param>
+        /// <param name="assessmentSection">The <see cref="IAssessmentSection"/> the failure mechanism belongs to.</param>
+        /// <param name="considerManualAssembly">Indicator whether the manual assembly should be used in the assembly.</param>
+        /// <returns>A <see cref="FailureMechanismAssembly"/>.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="AssemblyException">Thrown when the <see cref="FailureMechanismAssembly"/>
+        /// could not be created.</exception>
+        public static FailureMechanismAssembly AssembleFailureMechanism(
+            IEnumerable<MacroStabilityInwardsFailureMechanismSectionResult> failureMechanismSectionResults,
+            IEnumerable<MacroStabilityInwardsCalculationScenario> calculationScenarios,
+            MacroStabilityInwardsFailureMechanism failureMechanism,
+            IAssessmentSection assessmentSection,
+            bool considerManualAssembly = true)
+        {
+            if (failureMechanismSectionResults == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanismSectionResults));
+            }
+
+            if (calculationScenarios == null)
+            {
+                throw new ArgumentNullException(nameof(calculationScenarios));
+            }
+
+            if (failureMechanism == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanism));
+            }
+
+            if (assessmentSection == null)
+            {
+                throw new ArgumentNullException(nameof(assessmentSection));
+            }
+
+            IAssemblyToolCalculatorFactory calculatorFactory = AssemblyToolCalculatorFactory.Instance;
+            IFailureMechanismSectionAssemblyCalculator sectionCalculator =
+                calculatorFactory.CreateFailureMechanismSectionAssemblyCalculator(AssemblyToolKernelFactory.Instance);
+
+            var sectionAssemblies = new List<FailureMechanismSectionAssembly>();
+            var assemblyCategoriesInput = new AssemblyCategoriesInput(failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(
+                                                                          failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.SectionLength),
+                                                                      failureMechanism.Contribution,
+                                                                      assessmentSection.FailureMechanismContribution.SignalingNorm,
+                                                                      assessmentSection.FailureMechanismContribution.LowerLimitNorm);
+            try
+            {
+                foreach (MacroStabilityInwardsFailureMechanismSectionResult sectionResult in failureMechanismSectionResults)
+                {
+                    if (sectionResult.UseManualAssemblyProbability && considerManualAssembly)
+                    {
+                        sectionAssemblies.Add(sectionCalculator.AssembleDetailedAssessment(
+                                                  DetailedAssessmentProbabilityOnlyResultType.Probability,
+                                                  sectionResult.ManualAssemblyProbability,
+                                                  failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(sectionResult.Section.Length),
+                                                  assemblyCategoriesInput));
+                    }
+                    else
+                    {
+                        sectionAssemblies.Add(AssembleCombinedAssessment(sectionResult,
+                                                                         calculationScenarios,
+                                                                         failureMechanism,
+                                                                         assessmentSection));
+                    }
+                }
+
+                IFailureMechanismAssemblyCalculator calculator =
+                    calculatorFactory.CreateFailureMechanismAssemblyCalculator(AssemblyToolKernelFactory.Instance);
+
+                return calculator.AssembleFailureMechanism(sectionAssemblies, assemblyCategoriesInput);
+            }
+            catch (FailureMechanismSectionAssemblyCalculatorException e)
+            {
+                throw new AssemblyException(e.Message, e);
+            }
+            catch (FailureMechanismAssemblyCalculatorException e)
+            {
+                throw new AssemblyException(e.Message, e);
+            }
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactoryTest.cs
===================================================================
diff -u -r8c799e8ee97c6f3e700026f7280d55d17693f740 -r6488da4fef46e82f140d0af313e0d615d1985d1c
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 8c799e8ee97c6f3e700026f7280d55d17693f740)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 6488da4fef46e82f140d0af313e0d615d1985d1c)
@@ -234,7 +234,7 @@
             }, true);
 
             var sectionResult = new MacroStabilityInwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
-            var calculationScenarios = new[]
+            MacroStabilityInwardsCalculationScenario[] calculationScenarios =
             {
                 MacroStabilityInwardsCalculationScenarioTestFactory.CreateMacroStabilityInwardsCalculationScenarioWithValidInput(hydraulicBoundaryLocation)
             };
@@ -688,5 +688,306 @@
         }
 
         #endregion
+
+        #region Failure Mechanism Assembly
+
+        [Test]
+        public void AssembleFailureMechanism_FailureMechanismSectionResultsNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            // Call
+            TestDelegate call = () => MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                null,
+                Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                new MacroStabilityInwardsFailureMechanism(),
+                assessmentSection);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanismSectionResults", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_CalculationScenariosNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            // Call
+            TestDelegate call = () => MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                Enumerable.Empty<MacroStabilityInwardsFailureMechanismSectionResult>(),
+                null,
+                new MacroStabilityInwardsFailureMechanism(),
+                assessmentSection);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("calculationScenarios", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_FailureMechanismNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            // Call
+            TestDelegate call = () => MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                Enumerable.Empty<MacroStabilityInwardsFailureMechanismSectionResult>(),
+                Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                null,
+                assessmentSection);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanism", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_AssessmentSectionNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                Enumerable.Empty<MacroStabilityInwardsFailureMechanismSectionResult>(),
+                Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                new MacroStabilityInwardsFailureMechanism(),
+                null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("assessmentSection", exception.ParamName);
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_WithoutManualInput_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new MacroStabilityInwardsFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResults = new[]
+            {
+                new MacroStabilityInwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    sectionResults,
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedAssembly = MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssessment(
+                    sectionResults.Single(),
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+                AssemblyToolTestHelper.AssertAreEqual(expectedAssembly, calculator.FailureMechanismSectionAssemblies.Single());
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_WithManualInputConsiderManualAssemblyTrue_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new MacroStabilityInwardsFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResults = new[]
+            {
+                new MacroStabilityInwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+                {
+                    UseManualAssemblyProbability = true,
+                    ManualAssemblyProbability = new Random(39).NextDouble()
+                }
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    sectionResults,
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedAssembly = MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleDetailedAssessment(
+                    sectionResults.Single(),
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+                AssemblyToolTestHelper.AssertAreEqual(expectedAssembly, calculator.FailureMechanismSectionAssemblies.Single());
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_WithManualInputConsiderManualAssemblyFalse_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new MacroStabilityInwardsFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResults = new[]
+            {
+                new MacroStabilityInwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+                {
+                    UseManualAssemblyProbability = true,
+                    ManualAssemblyProbability = new Random(39).NextDouble()
+                }
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    sectionResults,
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection,
+                    false);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedAssembly = MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssessment(
+                    sectionResults.Single(),
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+                AssemblyToolTestHelper.AssertAreEqual(expectedAssembly, calculator.FailureMechanismSectionAssemblies.Single());
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_AssemblyRan_ReturnsOutput()
+        {
+            // Setup
+            var failureMechanism = new MacroStabilityInwardsFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                FailureMechanismAssembly actualOutput =
+                    MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                        Enumerable.Empty<MacroStabilityInwardsFailureMechanismSectionResult>(),
+                        Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                        failureMechanism,
+                        assessmentSection);
+
+                // Assert
+                Assert.AreSame(calculator.FailureMechanismAssemblyOutput, actualOutput);
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_FailureMechanismCalculatorThrowsException_ThrowsAssemblyException()
+        {
+            // Setup
+            var failureMechanism = new MacroStabilityInwardsFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismAssemblyCalculator;
+                calculator.ThrowExceptionOnCalculate = true;
+
+                // Call
+                TestDelegate call = () => MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    Enumerable.Empty<MacroStabilityInwardsFailureMechanismSectionResult>(),
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                var exception = Assert.Throws<AssemblyException>(call);
+                Exception innerException = exception.InnerException;
+                Assert.IsInstanceOf<FailureMechanismAssemblyCalculatorException>(innerException);
+                Assert.AreEqual(innerException.Message, exception.Message);
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_FailureMechanismSectionCalculatorThrowsException_ThrowsAssemblyException()
+        {
+            // Setup
+            var failureMechanism = new MacroStabilityInwardsFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+                calculator.ThrowExceptionOnCalculateCombinedAssembly = true;
+
+                // Call
+                TestDelegate call = () => MacroStabilityInwardsFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    new[]
+                    {
+                        new MacroStabilityInwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+                    },
+                    Enumerable.Empty<MacroStabilityInwardsCalculationScenario>(),
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                var exception = Assert.Throws<AssemblyException>(call);
+                Exception innerException = exception.InnerException;
+                Assert.IsInstanceOf<FailureMechanismSectionAssemblyCalculatorException>(innerException);
+                Assert.AreEqual(innerException.Message, exception.Message);
+                mocks.VerifyAll();
+            }
+        }
+
+        #endregion
     }
 }
\ No newline at end of file