Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Service.Test/ClosingStructuresCalculationActivityTest.cs
===================================================================
diff -u -rec3dd34acf5bd7b86906fd57db007010b39aa149 -r6ac5917aa7fd76c41f389c1f649b2449229925d8
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Service.Test/ClosingStructuresCalculationActivityTest.cs	(.../ClosingStructuresCalculationActivityTest.cs)	(revision ec3dd34acf5bd7b86906fd57db007010b39aa149)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Service.Test/ClosingStructuresCalculationActivityTest.cs	(.../ClosingStructuresCalculationActivityTest.cs)	(revision 6ac5917aa7fd76c41f389c1f649b2449229925d8)
@@ -26,6 +26,7 @@
 using Ringtoets.ClosingStructures.Data;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Structures;
+using Ringtoets.HydraRing.Calculation.Activities;
 
 namespace Ringtoets.ClosingStructures.Service.Test
 {
@@ -47,7 +48,7 @@
             var activity = new ClosingStructuresCalculationActivity(calculation, "", failureMechanism, assessmentSectionMock);
 
             // Assert
-            Assert.IsInstanceOf<Activity>(activity);
+            Assert.IsInstanceOf<HydraRingActivityBase>(activity);
             Assert.AreEqual(calculation.Name, activity.Name);
             Assert.IsNull(activity.ProgressText);
             Assert.AreEqual(ActivityState.None, activity.State);
Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/Ringtoets.StabilityPointStructures.Service.csproj
===================================================================
diff -u -r276a32161f29fcba4af79cf7c7f0aeb254d4db54 -r6ac5917aa7fd76c41f389c1f649b2449229925d8
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/Ringtoets.StabilityPointStructures.Service.csproj	(.../Ringtoets.StabilityPointStructures.Service.csproj)	(revision 276a32161f29fcba4af79cf7c7f0aeb254d4db54)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/Ringtoets.StabilityPointStructures.Service.csproj	(.../Ringtoets.StabilityPointStructures.Service.csproj)	(revision 6ac5917aa7fd76c41f389c1f649b2449229925d8)
@@ -49,6 +49,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.resx</DependentUpon>
     </Compile>
+    <Compile Include="StabilityPointStructuresCalculationActivity.cs" />
     <Compile Include="StabilityPointStructuresCalculationService.cs" />
   </ItemGroup>
   <ItemGroup>
Index: Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs
===================================================================
diff -u
--- Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs	(revision 0)
+++ Ringtoets/StabilityPointStructures/src/Ringtoets.StabilityPointStructures.Service/StabilityPointStructuresCalculationActivity.cs	(revision 6ac5917aa7fd76c41f389c1f649b2449229925d8)
@@ -0,0 +1,97 @@
+// Copyright (C) Stichting Deltares 2016. 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.Base.Service;
+using Ringtoets.Common.Data.AssessmentSection;
+using Ringtoets.Common.Data.Structures;
+using Ringtoets.HydraRing.Calculation.Activities;
+using Ringtoets.StabilityPointStructures.Data;
+
+namespace Ringtoets.StabilityPointStructures.Service
+{
+    /// <summary>
+    /// <see cref="Activity"/> for running a structures stability point calculation.
+    /// </summary>
+    public class StabilityPointStructuresCalculationActivity : HydraRingActivityBase
+    {
+        private readonly StructuresCalculation<StabilityPointStructuresInput> calculation;
+        private readonly StabilityPointStructuresCalculationService calculationService;
+        private readonly StabilityPointStructuresFailureMechanism failureMechanism;
+        private readonly IAssessmentSection assessmentSection;
+        private readonly string hlcdFilepath;
+
+        /// <summary>
+        /// Creates a new instance of <see cref="StabilityPointStructuresCalculationActivity"/>.
+        /// </summary>
+        /// <param name="calculation">The stability point structures data used for the calculation.</param>
+        /// <param name="hlcdFilepath">The filepath of the HLCD file that should be used for performing the calculation.</param>
+        /// <param name="failureMechanism">The failure mechanism the calculation belongs to.</param>
+        /// <param name="assessmentSection">The assessment section the calculation belongs to.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any input argument is <c>null</c>.</exception>
+        public StabilityPointStructuresCalculationActivity(StructuresCalculation<StabilityPointStructuresInput> calculation, string hlcdFilepath,
+                                                           StabilityPointStructuresFailureMechanism failureMechanism, IAssessmentSection assessmentSection)
+        {
+            if (calculation == null)
+            {
+                throw new ArgumentNullException("calculation");
+            }
+
+            if (hlcdFilepath == null)
+            {
+                throw new ArgumentNullException("hlcdFilepath");
+            }
+
+            if (failureMechanism == null)
+            {
+                throw new ArgumentNullException("failureMechanism");
+            }
+
+            if (assessmentSection == null)
+            {
+                throw new ArgumentNullException("assessmentSection");
+            }
+
+            this.calculation = calculation;
+            this.failureMechanism = failureMechanism;
+            this.assessmentSection = assessmentSection;
+            this.hlcdFilepath = hlcdFilepath;
+
+            Name = calculation.Name;
+            calculationService = new StabilityPointStructuresCalculationService();
+        }
+
+        protected override void OnCancel()
+        {
+            
+        }
+
+        protected override void OnFinish()
+        {
+            throw new NotImplementedException();
+        }
+
+        protected override void PerformCalculation()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/Ringtoets.StabilityPointStructures.Service.Test.csproj
===================================================================
diff -u -r276a32161f29fcba4af79cf7c7f0aeb254d4db54 -r6ac5917aa7fd76c41f389c1f649b2449229925d8
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/Ringtoets.StabilityPointStructures.Service.Test.csproj	(.../Ringtoets.StabilityPointStructures.Service.Test.csproj)	(revision 276a32161f29fcba4af79cf7c7f0aeb254d4db54)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/Ringtoets.StabilityPointStructures.Service.Test.csproj	(.../Ringtoets.StabilityPointStructures.Service.Test.csproj)	(revision 6ac5917aa7fd76c41f389c1f649b2449229925d8)
@@ -57,6 +57,7 @@
       <Link>Properties\GlobalAssembly.cs</Link>
     </Compile>
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="StabilityPointStructuresCalculationActivityTest.cs" />
     <Compile Include="StabilityPointStructuresCalculationServiceTest.cs" />
   </ItemGroup>
   <ItemGroup>
Index: Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresCalculationActivityTest.cs
===================================================================
diff -u
--- Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresCalculationActivityTest.cs	(revision 0)
+++ Ringtoets/StabilityPointStructures/test/Ringtoets.StabilityPointStructures.Service.Test/StabilityPointStructuresCalculationActivityTest.cs	(revision 6ac5917aa7fd76c41f389c1f649b2449229925d8)
@@ -0,0 +1,132 @@
+// Copyright (C) Stichting Deltares 2016. 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.Base.Service;
+using NUnit.Framework;
+using Rhino.Mocks;
+using Ringtoets.Common.Data.AssessmentSection;
+using Ringtoets.Common.Data.Structures;
+using Ringtoets.HydraRing.Calculation.Activities;
+using Ringtoets.StabilityPointStructures.Data;
+
+namespace Ringtoets.StabilityPointStructures.Service.Test
+{
+    [TestFixture]
+    public class StabilityPointStructuresCalculationActivityTest
+    {
+        [Test]
+        public void ParameteredConstructor_ExpectedValues()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSectionMock = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            var failureMechanism = new StabilityPointStructuresFailureMechanism();
+            var calculation = new StructuresCalculation<StabilityPointStructuresInput>();
+
+            // Call
+            var activity = new StabilityPointStructuresCalculationActivity(calculation, "", failureMechanism, assessmentSectionMock);
+
+            // Assert
+            Assert.IsInstanceOf<HydraRingActivityBase>(activity);
+            Assert.AreEqual(calculation.Name, activity.Name);
+            Assert.IsNull(activity.ProgressText);
+            Assert.AreEqual(ActivityState.None, activity.State);
+
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void ParameteredConstructor_CalculationNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSectionMock = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            var failureMechanism = new StabilityPointStructuresFailureMechanism();
+
+            // Call
+            TestDelegate call = () => new StabilityPointStructuresCalculationActivity(null, "", failureMechanism, assessmentSectionMock);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("calculation", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void ParameteredConstructor_HlcdFilePathNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSectionMock = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            var failureMechanism = new StabilityPointStructuresFailureMechanism();
+            var calculation = new StructuresCalculation<StabilityPointStructuresInput>();
+
+            // Call
+            TestDelegate call = () => new StabilityPointStructuresCalculationActivity(calculation, null, failureMechanism, assessmentSectionMock);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("hlcdFilepath", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void ParameteredConstructor_FailureMechanismNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSectionMock = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            var calculation = new StructuresCalculation<StabilityPointStructuresInput>();
+
+            // Call
+            TestDelegate call = () => new StabilityPointStructuresCalculationActivity(calculation, "", null, assessmentSectionMock);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanism", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void ParameteredConstructor_AssessmentSectionNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var failureMechanism = new StabilityPointStructuresFailureMechanism();
+            var calculation = new StructuresCalculation<StabilityPointStructuresInput>();
+
+            // Call
+            TestDelegate call = () => new StabilityPointStructuresCalculationActivity(calculation, "", failureMechanism, null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("assessmentSection", exception.ParamName);
+        }
+    }
+}
\ No newline at end of file