Index: Riskeer/Integration/src/Riskeer.Integration.Data/RiskeerProject.cs
===================================================================
diff -u -rc36b47c2e1e8cf948767cca33f80ad735f370ad0 -r991f347230a23a879fd6ea458586576c43e5e48b
--- Riskeer/Integration/src/Riskeer.Integration.Data/RiskeerProject.cs	(.../RiskeerProject.cs)	(revision c36b47c2e1e8cf948767cca33f80ad735f370ad0)
+++ Riskeer/Integration/src/Riskeer.Integration.Data/RiskeerProject.cs	(.../RiskeerProject.cs)	(revision 991f347230a23a879fd6ea458586576c43e5e48b)
@@ -19,8 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System.Collections.Generic;
-using System.Linq;
 using Core.Common.Base;
 using Core.Common.Base.Data;
 using Core.Common.Base.Properties;
@@ -45,14 +43,12 @@
         {
             Name = name;
             Description = "";
-
-            AssessmentSections = new List<AssessmentSection>();
         }
 
         /// <summary>
-        /// Gets or sets the assessment sections of the <see cref="RiskeerProject"/>.
+        /// Gets or sets the assessment section of the <see cref="RiskeerProject"/>.
         /// </summary>
-        public List<AssessmentSection> AssessmentSections { get; }
+        public AssessmentSection AssessmentSection { get; set; }
 
         /// <summary>
         /// Gets or sets the name of the <see cref="RiskeerProject"/>.
@@ -99,7 +95,7 @@
 
             return string.Equals(Name, otherProject.Name)
                    && string.Equals(Description, otherProject.Description)
-                   && AssessmentSections.SequenceEqual(otherProject.AssessmentSections);
+                   && AssessmentSection.Equals(otherProject.AssessmentSection);
         }
     }
 }
\ No newline at end of file
Index: Riskeer/Integration/test/Riskeer.Integration.Data.Test/RiskeerProjectTest.cs
===================================================================
diff -u -rc36b47c2e1e8cf948767cca33f80ad735f370ad0 -r991f347230a23a879fd6ea458586576c43e5e48b
--- Riskeer/Integration/test/Riskeer.Integration.Data.Test/RiskeerProjectTest.cs	(.../RiskeerProjectTest.cs)	(revision c36b47c2e1e8cf948767cca33f80ad735f370ad0)
+++ Riskeer/Integration/test/Riskeer.Integration.Data.Test/RiskeerProjectTest.cs	(.../RiskeerProjectTest.cs)	(revision 991f347230a23a879fd6ea458586576c43e5e48b)
@@ -43,7 +43,7 @@
             Assert.IsInstanceOf<IProject>(project);
             Assert.AreEqual("Project", project.Name);
             Assert.AreEqual("", project.Description);
-            CollectionAssert.IsEmpty(project.AssessmentSections);
+            Assert.IsNull(project.AssessmentSection);
         }
 
         [Test]
@@ -59,7 +59,7 @@
             Assert.IsInstanceOf<IProject>(project);
             Assert.AreEqual(someName, project.Name);
             Assert.AreEqual("", project.Description);
-            CollectionAssert.IsEmpty(project.AssessmentSections);
+            Assert.IsNull(project.AssessmentSection);
         }
 
         [Test]
@@ -148,16 +148,18 @@
 
                 var random = new Random(21);
                 RiskeerProject differentAssessmentSections = CreateProject();
-                differentAssessmentSections.AssessmentSections.Add(new AssessmentSection(random.NextEnumValue<AssessmentSectionComposition>()));
+                differentAssessmentSections.AssessmentSection = new AssessmentSection(random.NextEnumValue<AssessmentSectionComposition>());
                 yield return new TestCaseData(differentAssessmentSections)
                     .SetName("AssessmentSections");
             }
 
             private static RiskeerProject CreateProject()
             {
+                var random = new Random(21);
                 return new RiskeerProject("Some name")
                 {
-                    Description = "Some desctiption"
+                    Description = "Some description",
+                    AssessmentSection = new AssessmentSection(random.NextEnumValue<AssessmentSectionComposition>())
                 };
             }
         }