Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSectionAssembly.cs
===================================================================
diff -u -rb50aa5c330d5c514ef0727cb9b732094c228eb46 -r24154e2ef651d5deac25c6caf8f143d0348b29ff
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSectionAssembly.cs	(.../SerializableFailureMechanismSectionAssembly.cs)	(revision b50aa5c330d5c514ef0727cb9b732094c228eb46)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSectionAssembly.cs	(.../SerializableFailureMechanismSectionAssembly.cs)	(revision 24154e2ef651d5deac25c6caf8f143d0348b29ff)
@@ -41,11 +41,13 @@
         /// </summary>
         /// <param name="id">The unique ID of the assembly result.</param>
         /// <param name="failureMechanism">The failure mechanism this assembly belongs to.</param>
+        /// <param name="section">The section this assembly belongs to.</param>
         /// <param name="sectionResults">The collection of assembly results for this section assembly.</param>
         /// <param name="combinedSectionResult">The combined assembly result for this section assembly.</param>
         /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
         public SerializableFailureMechanismSectionAssembly(string id,
                                                            SerializableFailureMechanism failureMechanism,
+                                                           SerializableFailureMechanismSection section,
                                                            SerializableFailureMechanismSectionAssemblyResult[] sectionResults,
                                                            SerializableFailureMechanismSectionAssemblyResult combinedSectionResult) : this()
         {
@@ -59,6 +61,11 @@
                 throw new ArgumentNullException(nameof(failureMechanism));
             }
 
+            if (section == null)
+            {
+                throw new ArgumentNullException(nameof(section));
+            }
+
             if (sectionResults == null)
             {
                 throw new ArgumentNullException(nameof(sectionResults));
@@ -71,6 +78,7 @@
 
             Id = id;
             FailureMechanismId = failureMechanism.Id;
+            FailureMechanismSectionId = section.Id;
             SectionResults = sectionResults;
             CombinedSectionResult = combinedSectionResult;
         }
@@ -88,6 +96,12 @@
         public string FailureMechanismId { get; set; }
 
         /// <summary>
+        /// Gets or sets the parent failure mechanism section ID.
+        /// </summary>
+        [XmlAttribute(AssemblyXmlIdentifiers.FailureMechanismSectionIdRef)]
+        public string FailureMechanismSectionId { get; set; }
+
+        /// <summary>
         /// Gets or sets the combined assembly result.
         /// </summary>
         [XmlElement(AssemblyXmlIdentifiers.CombinedSectionResult)]