Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSections.cs
===================================================================
diff -u -rb0b566f39d1154e82c2cc098318ad18bf70342e8 -rc484779318d146c81093706412e60860ee423295
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSections.cs	(.../SerializableFailureMechanismSections.cs)	(revision b0b566f39d1154e82c2cc098318ad18bf70342e8)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSections.cs	(.../SerializableFailureMechanismSections.cs)	(revision c484779318d146c81093706412e60860ee423295)
@@ -43,19 +43,47 @@
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
         public SerializableFailureMechanismSections(string id,
                                                     SerializableFailureMechanism failureMechanism)
+            : this(id)
         {
-            if (id == null)
+            if (failureMechanism == null)
             {
-                throw new ArgumentNullException(nameof(id));
+                throw new ArgumentNullException(nameof(failureMechanism));
             }
 
-            if (failureMechanism == null)
+            FailureMechanismId = failureMechanism.Id;
+        }
+
+        /// <summary>
+        /// Creates a new instance of <see cref="SerializableFailureMechanismSections"/>.
+        /// </summary>
+        /// <param name="id">The unique ID of the sections.</param>
+        /// <param name="totalAssemblyResult">The total assembly result the sections belong to.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        public SerializableFailureMechanismSections(string id,
+                                                    SerializableTotalAssemblyResult totalAssemblyResult)
+            : this(id)
+        {
+            if (totalAssemblyResult == null)
             {
-                throw new ArgumentNullException(nameof(failureMechanism));
+                throw new ArgumentNullException(nameof(totalAssemblyResult));
             }
 
+            TotalAssemblyResultId = totalAssemblyResult.Id;
+        }
+
+        /// <summary>
+        /// Creates a new instance of <see cref="SerializableFailureMechanismSections"/>.
+        /// </summary>
+        /// <param name="id">The unique ID of the sections.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="id"/> is <c>null</c>.</exception>
+        private SerializableFailureMechanismSections(string id)
+        {
+            if (id == null)
+            {
+                throw new ArgumentNullException(nameof(id));
+            }
+
             Id = id;
-            FailureMechanismId = failureMechanism.Id;
         }
 
         /// <summary>
@@ -69,5 +97,11 @@
         /// </summary>
         [XmlAttribute(AssemblyXmlIdentifiers.FailureMechanismIdRef)]
         public string FailureMechanismId { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ID of the parent total assembly result.
+        /// </summary>
+        [XmlAttribute(AssemblyXmlIdentifiers.TotalAssemblyResultIdRef)]
+        public string TotalAssemblyResultId { get; set; }
     }
 }
\ No newline at end of file
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/SerializableAssemblyTest.cs
===================================================================
diff -u -r5e2248b589fcb4b39e7ff664cd11a200b08daa28 -rc484779318d146c81093706412e60860ee423295
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/SerializableAssemblyTest.cs	(.../SerializableAssemblyTest.cs)	(revision 5e2248b589fcb4b39e7ff664cd11a200b08daa28)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/SerializableAssemblyTest.cs	(.../SerializableAssemblyTest.cs)	(revision c484779318d146c81093706412e60860ee423295)
@@ -237,7 +237,7 @@
                                                                           },
                                                                           new SerializableFailureMechanismSectionAssemblyResult(SerializableAssemblyMethod.WBI0A1, SerializableAssessmentLevel.CombinedAssessment, SerializableFailureMechanismSectionCategoryGroup.IIIv));
 
-            var sections2 = new SerializableFailureMechanismSections("vakindeling_gecombineerd", failureMechanism1);
+            var sections2 = new SerializableFailureMechanismSections("vakindeling_gecombineerd", totalAssemblyResult);
             var section2 = new SerializableFailureMechanismSection("vak_gecombineerd_1",
                                                                    sections2,
                                                                    0.12,
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/SerializableFailureMechanismSectionsTest.cs
===================================================================
diff -u -rc37e7aa9fdd38a0476335e056b33c583486ed1af -rc484779318d146c81093706412e60860ee423295
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/SerializableFailureMechanismSectionsTest.cs	(.../SerializableFailureMechanismSectionsTest.cs)	(revision c37e7aa9fdd38a0476335e056b33c583486ed1af)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/SerializableFailureMechanismSectionsTest.cs	(.../SerializableFailureMechanismSectionsTest.cs)	(revision c484779318d146c81093706412e60860ee423295)
@@ -42,15 +42,18 @@
             Assert.IsInstanceOf<SerializableFeatureMember>(sections);
             Assert.IsNull(sections.Id);
             Assert.IsNull(sections.FailureMechanismId);
+            Assert.IsNull(sections.TotalAssemblyResultId);
 
             SerializableAttributeTestHelper.AssertXmlAttributeAttribute<SerializableFailureMechanismSections>(
                 nameof(SerializableFailureMechanismSections.Id), "VakindelingID");
             SerializableAttributeTestHelper.AssertXmlAttributeAttribute<SerializableFailureMechanismSections>(
                 nameof(SerializableFailureMechanismSections.FailureMechanismId), "ToetsspoorIDRef");
+            SerializableAttributeTestHelper.AssertXmlAttributeAttribute<SerializableFailureMechanismSections>(
+                nameof(SerializableFailureMechanismSections.TotalAssemblyResultId), "VeiligheidsoordeelIDRef");
         }
 
         [Test]
-        public void Constructor_IdNull_ThrowsArgumentNullException()
+        public void ConstructorWithFailureMechanism_IdNull_ThrowsArgumentNullException()
         {
             // Call
             TestDelegate call = () => new SerializableFailureMechanismSections(null,
@@ -62,19 +65,19 @@
         }
 
         [Test]
-        public void Constructor_FailureMechanismNull_ThrowsArgumentNullException()
+        public void ConstructorWithFailureMechanism_FailureMechanismNull_ThrowsArgumentNullException()
         {
             // Call
             TestDelegate call = () => new SerializableFailureMechanismSections("id",
-                                                                               null);
+                                                                               (SerializableFailureMechanism) null);
 
             // Assert
             var exception = Assert.Throws<ArgumentNullException>(call);
             Assert.AreEqual("failureMechanism", exception.ParamName);
         }
 
         [Test]
-        public void Constructor_WithValidData_ReturnsExpectedValues()
+        public void ConstructorWithFailureMechanism_WithValidData_ReturnsExpectedValues()
         {
             // Setup
             const string id = "section id";
@@ -93,6 +96,53 @@
             // Assert
             Assert.AreEqual(id, sections.Id);
             Assert.AreEqual(failureMechanism.Id, sections.FailureMechanismId);
+            Assert.IsNull(sections.TotalAssemblyResultId);
         }
+
+        [Test]
+        public void ConstructorWithTotalAssemblyResult_IdNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new SerializableFailureMechanismSections(null,
+                                                                               new SerializableTotalAssemblyResult());
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("id", exception.ParamName);
+        }
+
+        [Test]
+        public void ConstructorWithTotalAssemblyResult_FailureMechanismNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new SerializableFailureMechanismSections("id",
+                                                                               (SerializableTotalAssemblyResult) null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("totalAssemblyResult", exception.ParamName);
+        }
+
+        [Test]
+        public void ConstructorWithTotalAssemblyResult_WithValidData_ReturnsExpectedValues()
+        {
+            // Setup
+            const string id = "section id";
+
+            var totalAssemblyResult = new SerializableTotalAssemblyResult("result id",
+                                                                          new SerializableAssessmentProcess(),
+                                                                          new SerializableFailureMechanismAssemblyResult(),
+                                                                          new SerializableFailureMechanismAssemblyResult(),
+                                                                          new SerializableAssessmentSectionAssemblyResult());
+
+            // Call
+            var sections = new SerializableFailureMechanismSections(id,
+                                                                    totalAssemblyResult);
+
+            // Assert
+            Assert.AreEqual(id, sections.Id);
+            Assert.AreEqual(totalAssemblyResult.Id, sections.TotalAssemblyResultId);
+            Assert.IsNull(sections.FailureMechanismId);
+        }
     }
 }
\ No newline at end of file