Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -r02a11872033c745f92623cedf5dcd8136048e255 -r1e8ba146cf6eb18470458926f8ff74fa6717501d
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs)	(revision 02a11872033c745f92623cedf5dcd8136048e255)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs)	(revision 1e8ba146cf6eb18470458926f8ff74fa6717501d)
@@ -20,12 +20,14 @@
 // All rights reserved.
 
 using System;
+using System.Collections.Generic;
 using Ringtoets.AssemblyTool.Data;
 using Ringtoets.AssemblyTool.KernelWrapper.Calculators;
 using Ringtoets.AssemblyTool.KernelWrapper.Calculators.Assembly;
 using Ringtoets.AssemblyTool.KernelWrapper.Kernels;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Exceptions;
+using Ringtoets.Common.Primitives;
 
 namespace Ringtoets.HeightStructures.Data
 {
@@ -106,10 +108,7 @@
                 return calculator.AssembleDetailedAssessment(
                     failureMechanismSectionResult.DetailedAssessmentResult,
                     failureMechanismSectionResult.GetDetailedAssessmentProbability(failureMechanism, assessmentSection),
-                    new AssemblyCategoriesInput(failureMechanism.GeneralInput.N,
-                                                failureMechanism.Contribution,
-                                                assessmentSection.FailureMechanismContribution.SignalingNorm,
-                                                assessmentSection.FailureMechanismContribution.LowerLimitNorm));
+                    CreateAssemblyCategoriesInput(failureMechanism, assessmentSection));
             }
             catch (FailureMechanismSectionAssemblyCalculatorException e)
             {
@@ -157,10 +156,7 @@
                 return calculator.AssembleTailorMadeAssessment(
                     failureMechanismSectionResult.TailorMadeAssessmentResult,
                     failureMechanismSectionResult.TailorMadeAssessmentProbability,
-                    new AssemblyCategoriesInput(failureMechanism.GeneralInput.N,
-                                                failureMechanism.Contribution,
-                                                assessmentSection.FailureMechanismContribution.SignalingNorm,
-                                                assessmentSection.FailureMechanismContribution.LowerLimitNorm));
+                    CreateAssemblyCategoriesInput(failureMechanism, assessmentSection));
             }
             catch (FailureMechanismSectionAssemblyCalculatorException e)
             {
@@ -218,5 +214,84 @@
                 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="failureMechanism">The failure mechanism 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<HeightStructuresFailureMechanismSectionResult> failureMechanismSectionResults,
+            HeightStructuresFailureMechanism failureMechanism,
+            IAssessmentSection assessmentSection,
+            bool considerManualAssembly = true)
+        {
+            if (failureMechanismSectionResults == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanismSectionResults));
+            }
+
+            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);
+
+            AssemblyCategoriesInput assemblyCategoriesInput = CreateAssemblyCategoriesInput(failureMechanism, assessmentSection);
+            var sectionAssemblies = new List<FailureMechanismSectionAssembly>();
+
+            try
+            {
+                foreach (HeightStructuresFailureMechanismSectionResult sectionResult in failureMechanismSectionResults)
+                {
+                    if (sectionResult.UseManualAssemblyProbability && considerManualAssembly)
+                    {
+                        sectionAssemblies.Add(sectionCalculator.AssembleDetailedAssessment(
+                                                  DetailedAssessmentProbabilityOnlyResultType.Probability,
+                                                  sectionResult.ManualAssemblyProbability,
+                                                  assemblyCategoriesInput));
+                    }
+                    else
+                    {
+                        sectionAssemblies.Add(AssembleCombinedAssessment(sectionResult,
+                                                                         failureMechanism,
+                                                                         assessmentSection));
+                    }
+                }
+
+                IFailureMechanismAssemblyCalculator calculator =
+                    calculatorFactory.CreateFailureMechanismAssemblyCalculator(AssemblyToolKernelFactory.Instance);
+
+                return calculator.AssembleFailureMechanism(sectionAssemblies, assemblyCategoriesInput);
+            }
+            catch (Exception e) when (e is FailureMechanismAssemblyCalculatorException || e is FailureMechanismSectionAssemblyCalculatorException)
+            {
+                throw new AssemblyException(e.Message, e);
+            }
+        }
+
+        private static AssemblyCategoriesInput CreateAssemblyCategoriesInput(HeightStructuresFailureMechanism failureMechanism,
+                                                                             IAssessmentSection assessmentSection)
+        {
+            return new AssemblyCategoriesInput(failureMechanism.GeneralInput.N,
+                                               failureMechanism.Contribution,
+                                               assessmentSection.FailureMechanismContribution.SignalingNorm,
+                                               assessmentSection.FailureMechanismContribution.LowerLimitNorm);
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs
===================================================================
diff -u -r09590b1baf30b0baa9a2d08790a55fb39d701758 -r1e8ba146cf6eb18470458926f8ff74fa6717501d
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 09590b1baf30b0baa9a2d08790a55fb39d701758)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 1e8ba146cf6eb18470458926f8ff74fa6717501d)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using System.Linq;
 using Core.Common.TestUtil;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -608,5 +609,273 @@
         }
 
         #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 = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                null,
+                new HeightStructuresFailureMechanism(),
+                assessmentSection);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanismSectionResults", 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 = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                Enumerable.Empty<HeightStructuresFailureMechanismSectionResult>(),
+                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 = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                Enumerable.Empty<HeightStructuresFailureMechanismSectionResult>(),
+                new HeightStructuresFailureMechanism(),
+                null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("assessmentSection", exception.ParamName);
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_WithoutManualInput_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResults = new[]
+            {
+                new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    sectionResults,
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedAssembly = HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssessment(
+                    sectionResults.Single(),
+                    failureMechanism,
+                    assessmentSection);
+                AssemblyToolTestHelper.AssertAreEqual(expectedAssembly, calculator.FailureMechanismSectionAssemblies.Single());
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_WithManualInputConsiderManualAssemblyTrue_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResults = new[]
+            {
+                new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+                {
+                    UseManualAssemblyProbability = true,
+                    ManualAssemblyProbability = new Random(39).NextDouble()
+                }
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    sectionResults,
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedAssembly = HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleDetailedAssessment(
+                    sectionResults.Single(),
+                    failureMechanism,
+                    assessmentSection);
+                AssemblyToolTestHelper.AssertAreEqual(expectedAssembly, calculator.FailureMechanismSectionAssemblies.Single());
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_WithManualInputConsiderManualAssemblyFalse_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResults = new[]
+            {
+                new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+                {
+                    UseManualAssemblyProbability = true,
+                    ManualAssemblyProbability = new Random(39).NextDouble()
+                }
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismAssemblyCalculator;
+
+                // Call
+                HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    sectionResults,
+                    failureMechanism,
+                    assessmentSection,
+                    false);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedAssembly = HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssessment(
+                    sectionResults.Single(),
+                    failureMechanism,
+                    assessmentSection);
+                AssemblyToolTestHelper.AssertAreEqual(expectedAssembly, calculator.FailureMechanismSectionAssemblies.Single());
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_AssemblyRan_ReturnsOutput()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            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 =
+                    HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                        Enumerable.Empty<HeightStructuresFailureMechanismSectionResult>(),
+                        failureMechanism,
+                        assessmentSection);
+
+                // Assert
+                Assert.AreSame(calculator.FailureMechanismAssemblyOutput, actualOutput);
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleFailureMechanism_FailureMechanismCalculatorThrowsException_ThrowsAssemblyException()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            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 = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    Enumerable.Empty<HeightStructuresFailureMechanismSectionResult>(),
+                    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 HeightStructuresFailureMechanism();
+
+            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 = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleFailureMechanism(
+                    new[]
+                    {
+                        new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection())
+                    },
+                    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