Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/FailureMechanismAssembly.cs
===================================================================
diff -u
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/FailureMechanismAssembly.cs	(revision 0)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/FailureMechanismAssembly.cs	(revision e795afb9d63bcdce8fb0e8902d13654590ea777c)
@@ -0,0 +1,50 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+namespace Ringtoets.AssemblyTool.Data
+{
+    /// <summary>
+    /// Assembly for failure mechanisms.
+    /// </summary>
+    public class FailureMechanismAssembly
+    {
+        /// <summary>
+        /// Creates a new instance of <see cref="FailureMechanismAssembly"/>.
+        /// </summary>
+        /// <param name="probability">The probability of the assembly.</param>
+        /// <param name="group">The group of the assembly.</param>
+        public FailureMechanismAssembly(double probability, FailureMechanismAssemblyCategoryGroup group)
+        {
+            Probability = probability;
+            Group = group;
+        }
+
+        /// <summary>
+        /// Gets the probability of the assembly.
+        /// </summary>
+        public double Probability { get; }
+
+        /// <summary>
+        /// Gets the group of the assembly.
+        /// </summary>
+        public FailureMechanismAssemblyCategoryGroup Group { get; }
+    }
+}
\ No newline at end of file
Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/FailureMechanismAssemblyCategoryGroup.cs
===================================================================
diff -u
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/FailureMechanismAssemblyCategoryGroup.cs	(revision 0)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/FailureMechanismAssemblyCategoryGroup.cs	(revision e795afb9d63bcdce8fb0e8902d13654590ea777c)
@@ -0,0 +1,39 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+namespace Ringtoets.AssemblyTool.Data
+{
+    /// <summary>
+    /// Enum defining the assembly categories for a failure mechanism.
+    /// </summary>
+    public enum FailureMechanismAssemblyCategoryGroup
+    {
+        None = 1,
+        NotApplicable = 2,
+        It = 3,
+        IIt = 4,
+        IIIt = 5,
+        IVt = 6,
+        Vt = 7,
+        VIt = 8,
+        VIIt = 9
+    }
+}
\ No newline at end of file
Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/Ringtoets.AssemblyTool.Data.csproj
===================================================================
diff -u -rd7c34bfcf02544a0ef1adfda5c7804234d7edf72 -re795afb9d63bcdce8fb0e8902d13654590ea777c
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/Ringtoets.AssemblyTool.Data.csproj	(.../Ringtoets.AssemblyTool.Data.csproj)	(revision d7c34bfcf02544a0ef1adfda5c7804234d7edf72)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.Data/Ringtoets.AssemblyTool.Data.csproj	(.../Ringtoets.AssemblyTool.Data.csproj)	(revision e795afb9d63bcdce8fb0e8902d13654590ea777c)
@@ -17,6 +17,7 @@
     <Compile Include="AssessmentSectionAssemblyCategoryGroup.cs" />
     <Compile Include="FailureMechanismSectionAssembly.cs" />
     <Compile Include="FailureMechanismSectionAssemblyCategory.cs" />
+    <Compile Include="FailureMechanismAssemblyCategoryGroup.cs" />
     <Compile Include="FailureMechanismSectionAssemblyCategoryGroup.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Properties\Resources.Designer.cs">
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/FailureMechanismAssemblyCategoryGroupTest.cs
===================================================================
diff -u
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/FailureMechanismAssemblyCategoryGroupTest.cs	(revision 0)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/FailureMechanismAssemblyCategoryGroupTest.cs	(revision e795afb9d63bcdce8fb0e8902d13654590ea777c)
@@ -0,0 +1,68 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System.Collections.Generic;
+using Core.Common.TestUtil;
+using NUnit.Framework;
+
+namespace Ringtoets.AssemblyTool.Data.Test
+{
+    [TestFixture]
+    public class FailureMechanismAssemblyCategoryGroupTest : EnumValuesTestFixture<FailureMechanismAssemblyCategoryGroup, int>
+    {
+        protected override IDictionary<FailureMechanismAssemblyCategoryGroup, int> ExpectedValueForEnumValues
+        {
+            get
+            {
+                return new Dictionary<FailureMechanismAssemblyCategoryGroup, int>
+                {
+                    {
+                        FailureMechanismAssemblyCategoryGroup.None, 1
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.NotApplicable, 2
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.It, 3
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.IIt, 4
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.IIIt, 5
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.IVt, 6
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.Vt, 7
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.VIt, 8
+                    },
+                    {
+                        FailureMechanismAssemblyCategoryGroup.VIIt, 9
+                    }
+                };
+            }
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/FailureMechanismAssemblyTest.cs
===================================================================
diff -u
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/FailureMechanismAssemblyTest.cs	(revision 0)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/FailureMechanismAssemblyTest.cs	(revision e795afb9d63bcdce8fb0e8902d13654590ea777c)
@@ -0,0 +1,47 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using Core.Common.TestUtil;
+using NUnit.Framework;
+
+namespace Ringtoets.AssemblyTool.Data.Test
+{
+    [TestFixture]
+    public class FailureMechanismAssemblyTest
+    {
+        [Test]
+        public void Constructor_ExpectedValues()
+        {
+            // Setup
+            var random = new Random(39);
+            double probability = random.NextDouble();
+            var group = random.NextEnumValue<FailureMechanismAssemblyCategoryGroup>();
+
+            // Call
+            var assembly = new FailureMechanismAssembly(probability, group);
+
+            // Assert
+            Assert.AreEqual(probability, assembly.Probability);
+            Assert.AreEqual(group, assembly.Group);
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/Ringtoets.AssemblyTool.Data.Test.csproj
===================================================================
diff -u -rd7c34bfcf02544a0ef1adfda5c7804234d7edf72 -re795afb9d63bcdce8fb0e8902d13654590ea777c
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/Ringtoets.AssemblyTool.Data.Test.csproj	(.../Ringtoets.AssemblyTool.Data.Test.csproj)	(revision d7c34bfcf02544a0ef1adfda5c7804234d7edf72)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/Ringtoets.AssemblyTool.Data.Test.csproj	(.../Ringtoets.AssemblyTool.Data.Test.csproj)	(revision e795afb9d63bcdce8fb0e8902d13654590ea777c)
@@ -18,6 +18,7 @@
     <Compile Include="AssemblyCategoryTest.cs" />
     <Compile Include="AssessmentSectionAssemblyCategoryGroupTest.cs" />
     <Compile Include="AssessmentSectionAssemblyCategoryTest.cs" />
+    <Compile Include="FailureMechanismAssemblyCategoryGroupTest.cs" />
     <Compile Include="FailureMechanismSectionAssemblyCategoryGroupTest.cs" />
     <Compile Include="FailureMechanismSectionAssemblyCategoryTest.cs" />
     <Compile Include="FailureMechanismSectionAssemblyTest.cs" />