Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/AssemblyFactories/GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -r8666fab5275f8b0ecc570c1bff4d1d3e06a2f70e -ra593329f1dbecbec57185718a2d2ed09bdb9dc14
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/AssemblyFactories/GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision 8666fab5275f8b0ecc570c1bff4d1d3e06a2f70e)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/StandAlone/AssemblyFactories/GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.cs)	(revision a593329f1dbecbec57185718a2d2ed09bdb9dc14)
@@ -98,5 +98,38 @@
                 throw new AssemblyException(e.Message, e);
             }
         }
+
+        /// <summary>
+        /// Assembles the tailor made assessment result.
+        /// </summary>
+        /// <param name="failureMechanismSectionResult">The failure mechanism section result to
+        /// assemble the tailor made assembly for.</param>
+        /// <returns>A <see cref="FailureMechanismSectionAssemblyCategoryGroup"/>.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanismSectionResult"/>
+        /// is <c>null</c>.</exception>
+        /// <exception cref="AssemblyException">Thrown when the <see cref="FailureMechanismSectionAssemblyCategoryGroup"/>
+        /// could not be created.</exception>
+        public static FailureMechanismSectionAssemblyCategoryGroup AssembleTailorMadeAssessment(
+            GrassCoverSlipOffOutwardsFailureMechanismSectionResult failureMechanismSectionResult)
+        {
+            if (failureMechanismSectionResult == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanismSectionResult));
+            }
+
+            IAssemblyToolCalculatorFactory calculatorFactory = AssemblyToolCalculatorFactory.Instance;
+            IFailureMechanismSectionAssemblyCalculator calculator =
+                calculatorFactory.CreateFailureMechanismSectionAssemblyCalculator(AssemblyToolKernelFactory.Instance);
+
+            try
+            {
+                return calculator.AssembleTailorMadeAssessment(
+                    failureMechanismSectionResult.TailorMadeAssessmentResult);
+            }
+            catch (FailureMechanismSectionAssemblyCalculatorException e)
+            {
+                throw new AssemblyException(e.Message, e);
+            }
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/AssemblyFactories/GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactoryTest.cs
===================================================================
diff -u -r8666fab5275f8b0ecc570c1bff4d1d3e06a2f70e -ra593329f1dbecbec57185718a2d2ed09bdb9dc14
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/AssemblyFactories/GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 8666fab5275f8b0ecc570c1bff4d1d3e06a2f70e)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/StandAlone/AssemblyFactories/GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision a593329f1dbecbec57185718a2d2ed09bdb9dc14)
@@ -200,5 +200,83 @@
         }
 
         #endregion
+
+        #region Tailor Made Assembly
+
+        [Test]
+        public void AssembleTailorMadeAssessment_FailureMechanismSectionResultNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.AssembleTailorMadeAssessment(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanismSectionResult", exception.ParamName);
+        }
+
+        [Test]
+        public void AssembleTailorMadeAssessment_WithInput_SetsInputOnCalculator()
+        {
+            // Setup
+            var sectionResult = new GrassCoverSlipOffOutwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+
+                // Call
+                GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.AssembleTailorMadeAssessment(sectionResult);
+
+                // Assert
+                Assert.AreEqual(sectionResult.TailorMadeAssessmentResult, calculator.TailorMadeAssessmentResultInput);
+            }
+        }
+
+        [Test]
+        public void AssembleTailorMadeAssessment_AssemblyRan_ReturnsOutput()
+        {
+            // Setup
+            var sectionResult = new GrassCoverSlipOffOutwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+
+                // Call
+                FailureMechanismSectionAssemblyCategoryGroup actualOutput =
+                    GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.AssembleTailorMadeAssessment(sectionResult);
+
+                // Assert
+                FailureMechanismSectionAssemblyCategoryGroup? calculatorOutput = calculator.TailorMadeAssemblyCategoryOutput;
+                Assert.AreEqual(calculatorOutput, actualOutput);
+            }
+        }
+
+        [Test]
+        public void AssembleTailorMadeAssessment_CalculatorThrowsExceptions_ThrowsAssemblyException()
+        {
+            // Setup
+            var sectionResult = new GrassCoverSlipOffOutwardsFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+                calculator.ThrowExceptionOnCalculate = true;
+
+                // Call
+                TestDelegate call = () => GrassCoverSlipOffOutwardsFailureMechanismSectionResultAssemblyFactory.AssembleTailorMadeAssessment(sectionResult);
+
+                // Assert
+                var exception = Assert.Throws<AssemblyException>(call);
+                Exception innerException = exception.InnerException;
+                Assert.IsInstanceOf<FailureMechanismSectionAssemblyCalculatorException>(innerException);
+                Assert.AreEqual(innerException.Message, exception.Message);
+            }
+        }
+
+        #endregion
     }
 }
\ No newline at end of file