Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/GrassCoverErosionInwardsAssemblyService.cs
===================================================================
diff -u
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/GrassCoverErosionInwardsAssemblyService.cs	(revision 0)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/GrassCoverErosionInwardsAssemblyService.cs	(revision 7343d643411a6e53de254fbdf98cd6956b64d9ff)
@@ -0,0 +1,62 @@
+// 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 Ringtoets.AssemblyTool.KernelWrapper.Calculators;
+using Ringtoets.AssemblyTool.KernelWrapper.Calculators.Assembly;
+using Ringtoets.AssemblyTool.KernelWrapper.Kernels;
+using Ringtoets.GrassCoverErosionInwards.Data;
+
+namespace Ringtoets.GrassCoverErosionInwards.Service
+{
+    /// <summary>
+    /// Assembly service for assembling the assembly tool results for grass cover erosion inwards.
+    /// </summary>
+    public static class GrassCoverErosionInwardsAssemblyService
+    {
+        /// <summary>
+        /// Assembles the simple assessment results.
+        /// </summary>
+        /// <param name="failureMechanismSectionResult">The failure mechanism section result to assemble the 
+        /// simple assembly results for.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanismSectionResult"/>
+        /// is <c>null</c>.</exception>
+        public static void AssembleSimpleAssessment(
+            GrassCoverErosionInwardsFailureMechanismSectionResult failureMechanismSectionResult)
+        {
+            if (failureMechanismSectionResult == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanismSectionResult));
+            }
+
+            IAssemblyToolCalculatorFactory calculatorFactory = AssemblyToolCalculatorFactory.Instance;
+            IFailureMechanismSectionAssemblyCalculator calculator =
+                calculatorFactory.CreateFailureMechanismSectionAssemblyCalculator(AssemblyToolKernelFactory.Instance);
+
+            try
+            {
+                failureMechanismSectionResult.SimpleAssemblyResult =
+                    calculator.AssembleSimpleAssessment(failureMechanismSectionResult.SimpleAssessmentInput);
+            }
+            catch (FailureMechanismSectionAssemblyCalculatorException) {}
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/Ringtoets.GrassCoverErosionInwards.Service.csproj
===================================================================
diff -u -rfcad48d7beb394e1ac15cfe4289a7381e05aa883 -r7343d643411a6e53de254fbdf98cd6956b64d9ff
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/Ringtoets.GrassCoverErosionInwards.Service.csproj	(.../Ringtoets.GrassCoverErosionInwards.Service.csproj)	(revision fcad48d7beb394e1ac15cfe4289a7381e05aa883)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/Ringtoets.GrassCoverErosionInwards.Service.csproj	(.../Ringtoets.GrassCoverErosionInwards.Service.csproj)	(revision 7343d643411a6e53de254fbdf98cd6956b64d9ff)
@@ -15,6 +15,7 @@
     <Reference Include="System.Core" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="GrassCoverErosionInwardsAssemblyService.cs" />
     <Compile Include="GrassCoverErosionInwardsCalculationActivity.cs" />
     <Compile Include="GrassCoverErosionInwardsDataSynchronizationService.cs" />
     <Compile Include="GrassCoverErosionInwardsCalculationService.cs" />
@@ -36,6 +37,11 @@
       <Name>Core.Common.Util</Name>
       <Private>False</Private>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\AssemblyTool\src\Ringtoets.AssemblyTool.KernelWrapper\Ringtoets.AssemblyTool.KernelWrapper.csproj">
+      <Project>{358b6da2-a1df-477f-b6ac-c30204265cb0}</Project>
+      <Name>Ringtoets.AssemblyTool.KernelWrapper</Name>
+      <Private>False</Private>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Common\src\Ringtoets.Common.Data\Ringtoets.Common.Data.csproj">
       <Project>{d4200f43-3f72-4f42-af0a-8ced416a38ec}</Project>
       <Name>Ringtoets.Common.Data</Name>
Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Service.Test/GrassCoverErosionInwardsAssemblyServiceTest.cs
===================================================================
diff -u
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Service.Test/GrassCoverErosionInwardsAssemblyServiceTest.cs	(revision 0)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Service.Test/GrassCoverErosionInwardsAssemblyServiceTest.cs	(revision 7343d643411a6e53de254fbdf98cd6956b64d9ff)
@@ -0,0 +1,122 @@
+// 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;
+using Ringtoets.AssemblyTool.KernelWrapper.Calculators;
+using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Calculators;
+using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Calculators.Assembly;
+using Ringtoets.Common.Data.AssemblyTool;
+using Ringtoets.Common.Data.FailureMechanism;
+using Ringtoets.Common.Data.TestUtil;
+using Ringtoets.GrassCoverErosionInwards.Data;
+
+namespace Ringtoets.GrassCoverErosionInwards.Service.Test
+{
+    [TestFixture]
+    public class GrassCoverErosionInwardsAssemblyServiceTest
+    {
+        [Test]
+        public void AssembleSimpleAssessment_FailureMechanismSectionResultNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => GrassCoverErosionInwardsAssemblyService.AssembleSimpleAssessment(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanismSectionResult", exception.ParamName);
+        }
+
+        [Test]
+        public void AssembleSimpleAssessment_WithInput_SetsInputOnCalculator()
+        {
+            // Setup
+            var random = new Random(21);
+            FailureMechanismSection failureMechanismSection = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var sectionResult = new GrassCoverErosionInwardsFailureMechanismSectionResult(failureMechanismSection)
+            {
+                SimpleAssessmentInput = random.NextEnumValue<SimpleAssessmentResultValidityOnlyType>()
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+
+                // Call
+                GrassCoverErosionInwardsAssemblyService.AssembleSimpleAssessment(sectionResult);
+
+                // Assert
+                Assert.AreEqual(sectionResult.SimpleAssessmentInput, calculator.SimpleAssessmentValidityOnlyInput);
+            }
+        }
+
+        [Test]
+        public void AssembleSimpleAssessment_AssemblyRan_SetsOutput()
+        {
+            // Setup
+            FailureMechanismSection failureMechanismSection = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var sectionResult = new GrassCoverErosionInwardsFailureMechanismSectionResult(failureMechanismSection);
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                // Pre-condition
+                Assert.IsNull(sectionResult.SimpleAssemblyResult);
+
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+
+                var random = new Random(21);
+                var calculatorOutput = new FailureMechanismSectionAssembly(random.NextDouble(), random.NextEnumValue<FailureMechanismSectionAssemblyCategoryGroup>());
+                calculator.SimpleAssessmentAssemblyOutput = calculatorOutput;
+
+                // Call
+                GrassCoverErosionInwardsAssemblyService.AssembleSimpleAssessment(sectionResult);
+
+                // Assert
+                Assert.AreSame(calculatorOutput, sectionResult.SimpleAssemblyResult);
+            }
+        }
+
+        [Test]
+        public void AssembleSimpleAssessment_CalculatorThrowsExceptions_DoesNothing()
+        {
+            // Setup
+            FailureMechanismSection failureMechanismSection = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var sectionResult = new GrassCoverErosionInwardsFailureMechanismSectionResult(failureMechanismSection);
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+                calculator.ThrowExceptionOnCalculate = true;
+
+                // Call
+                TestDelegate call = () => GrassCoverErosionInwardsAssemblyService.AssembleSimpleAssessment(sectionResult);
+
+                // Assert
+                Assert.DoesNotThrow(call);
+                Assert.IsNull(sectionResult.SimpleAssemblyResult);
+            }
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Service.Test/Ringtoets.GrassCoverErosionInwards.Service.Test.csproj
===================================================================
diff -u -r63fc151e9cf722527465c1eddfa6567a90feb5e6 -r7343d643411a6e53de254fbdf98cd6956b64d9ff
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Service.Test/Ringtoets.GrassCoverErosionInwards.Service.Test.csproj	(.../Ringtoets.GrassCoverErosionInwards.Service.Test.csproj)	(revision 63fc151e9cf722527465c1eddfa6567a90feb5e6)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Service.Test/Ringtoets.GrassCoverErosionInwards.Service.Test.csproj	(.../Ringtoets.GrassCoverErosionInwards.Service.Test.csproj)	(revision 7343d643411a6e53de254fbdf98cd6956b64d9ff)
@@ -23,6 +23,7 @@
     <Reference Include="System.Core" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="GrassCoverErosionInwardsAssemblyServiceTest.cs" />
     <Compile Include="GrassCoverErosionInwardsCalculationActivityTest.cs" />
     <Compile Include="GrassCoverErosionInwardsCalculationServiceTest.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -42,6 +43,14 @@
       <Project>{D749EE4C-CE50-4C17-BF01-9A953028C126}</Project>
       <Name>Core.Common.TestUtil</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\AssemblyTool\src\Ringtoets.AssemblyTool.KernelWrapper\Ringtoets.AssemblyTool.KernelWrapper.csproj">
+      <Project>{358B6DA2-A1DF-477F-B6AC-C30204265CB0}</Project>
+      <Name>Ringtoets.AssemblyTool.KernelWrapper</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\..\AssemblyTool\test\Ringtoets.AssemblyTool.KernelWrapper.TestUtil\Ringtoets.AssemblyTool.KernelWrapper.TestUtil.csproj">
+      <Project>{0AB432BB-E2CC-42EA-A72C-7AFEF7536B38}</Project>
+      <Name>Ringtoets.AssemblyTool.KernelWrapper.TestUtil</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Common\src\Ringtoets.Common.Data\Ringtoets.Common.Data.csproj">
       <Project>{d4200f43-3f72-4f42-af0a-8ced416a38ec}</Project>
       <Name>Ringtoets.Common.Data</Name>