Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/HydraRingCalculation.cs
===================================================================
diff -u -rdd33f3b9d039c570742b8233da23326538c848cf -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/HydraRingCalculation.cs	(.../HydraRingCalculation.cs)	(revision dd33f3b9d039c570742b8233da23326538c848cf)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/HydraRingCalculation.cs	(.../HydraRingCalculation.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -46,6 +46,11 @@
         public abstract HydraRingFailureMechanismType FailureMechanismType { get; }
 
         /// <summary>
+        /// Gets the id corresponding to the type of calculation that should be performed.
+        /// </summary>
+        public abstract int CalculationTypeId { get; }
+
+        /// <summary>
         /// Gets the id of the hydraulic station to use during the calculation.
         /// </summary>
         public int HydraulicBoundaryLocationId
Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/HydraRingConfiguration.cs
===================================================================
diff -u -r43074cf185009dabd2b9a4ee2b1a8fffa73747c5 -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/HydraRingConfiguration.cs	(.../HydraRingConfiguration.cs)	(revision 43074cf185009dabd2b9a4ee2b1a8fffa73747c5)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/HydraRingConfiguration.cs	(.../HydraRingConfiguration.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -258,7 +258,7 @@
                         "AlternativeId", defaultAlternativeId // Fixed: no support for piping
                     },
                     {
-                        "Method", failureMechanismDefaults.CalculationTypeId
+                        "Method", hydraRingCalculation.CalculationTypeId
                     },
                     {
                         "VariableId", failureMechanismDefaults.VariableId
Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Hydraulics/IterateTowardsTargetProbabilityCalculation.cs
===================================================================
diff -u -re58872a87106093853d59f6cae8f57e63b623202 -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Hydraulics/IterateTowardsTargetProbabilityCalculation.cs	(.../IterateTowardsTargetProbabilityCalculation.cs)	(revision e58872a87106093853d59f6cae8f57e63b623202)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Hydraulics/IterateTowardsTargetProbabilityCalculation.cs	(.../IterateTowardsTargetProbabilityCalculation.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -38,6 +38,14 @@
             this.beta = beta;
         }
 
+        public override int CalculationTypeId
+        {
+            get
+            {
+                return 2;
+            }
+        }
+
         public override double Beta
         {
             get
Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Settings/FailureMechanismDefaults.cs
===================================================================
diff -u -rdd33f3b9d039c570742b8233da23326538c848cf -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Settings/FailureMechanismDefaults.cs	(.../FailureMechanismDefaults.cs)	(revision dd33f3b9d039c570742b8233da23326538c848cf)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Settings/FailureMechanismDefaults.cs	(.../FailureMechanismDefaults.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -31,21 +31,18 @@
     {
         private readonly int variableId;
         private readonly int mechanismId;
-        private readonly int calculationTypeId;
         private readonly IEnumerable<int> subMechanismIds;
 
         /// <summary>
         /// Creates a new instance of the <see cref="FailureMechanismDefaults"/> class.
         /// </summary>
         /// <param name="mechanismId">The mechanism id that corresponds to a specific <see cref="HydraRingFailureMechanismType"/>.</param>
-        /// <param name="calculationTypeId">The calculation type id that is applicable for a specific <see cref="HydraRingFailureMechanismType"/>.</param>
         /// <param name="variableId">The id of the variable that is relevant for a specific <see cref="HydraRingFailureMechanismType"/>.</param>
         /// <param name="subMechanismIds">The sub mechanism ids that are applicable for a specific <see cref="HydraRingFailureMechanismType"/>.</param>
-        public FailureMechanismDefaults(int mechanismId, int calculationTypeId, int variableId, IEnumerable<int> subMechanismIds)
+        public FailureMechanismDefaults(int mechanismId, int variableId, IEnumerable<int> subMechanismIds)
         {
             this.mechanismId = mechanismId;
             this.variableId = variableId;
-            this.calculationTypeId = calculationTypeId;
             this.subMechanismIds = subMechanismIds;
         }
 
@@ -61,17 +58,6 @@
         }
 
         /// <summary>
-        /// Gets the calculation type id that is applicable for a specific <see cref="HydraRingFailureMechanismType"/>.
-        /// </summary>
-        public int CalculationTypeId
-        {
-            get
-            {
-                return calculationTypeId;
-            }
-        }
-
-        /// <summary>
         /// Gets the id of the variable that is relevant for a specific <see cref="HydraRingFailureMechanismType"/>.
         /// </summary>
         public int VariableId
Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Settings/FailureMechanismDefaultsProvider.cs
===================================================================
diff -u -rdd33f3b9d039c570742b8233da23326538c848cf -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Settings/FailureMechanismDefaultsProvider.cs	(.../FailureMechanismDefaultsProvider.cs)	(revision dd33f3b9d039c570742b8233da23326538c848cf)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Settings/FailureMechanismDefaultsProvider.cs	(.../FailureMechanismDefaultsProvider.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -44,62 +44,62 @@
             failureMechanismDefaults = new Dictionary<HydraRingFailureMechanismType, FailureMechanismDefaults>
             {
                 {
-                    HydraRingFailureMechanismType.AssessmentLevel, new FailureMechanismDefaults(1, 2, 26, new[]
+                    HydraRingFailureMechanismType.AssessmentLevel, new FailureMechanismDefaults(1, 26, new[]
                     {
                         1
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.WaveHeight, new FailureMechanismDefaults(11, 2, 28, new[]
+                    HydraRingFailureMechanismType.WaveHeight, new FailureMechanismDefaults(11, 28, new[]
                     {
                         11
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.WavePeakPeriod, new FailureMechanismDefaults(11, 2, 29, new[]
+                    HydraRingFailureMechanismType.WavePeakPeriod, new FailureMechanismDefaults(11, 29, new[]
                     {
                         14
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.WaveSpectralPeriod, new FailureMechanismDefaults(11, 2, 29, new[]
+                    HydraRingFailureMechanismType.WaveSpectralPeriod, new FailureMechanismDefaults(11, 29, new[]
                     {
                         16
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.QVariant, new FailureMechanismDefaults(3, 6, 114, new[]
+                    HydraRingFailureMechanismType.QVariant, new FailureMechanismDefaults(3, 114, new[]
                     {
                         3,
                         4,
                         5
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.DikesOvertopping, new FailureMechanismDefaults(101, 1, 1, new[]
+                    HydraRingFailureMechanismType.DikesOvertopping, new FailureMechanismDefaults(101, 1, new[]
                     {
                         102,
                         103
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.DikesPiping, new FailureMechanismDefaults(103, 1, 44, new[]
+                    HydraRingFailureMechanismType.DikesPiping, new FailureMechanismDefaults(103, 44, new[]
                     {
                         311,
                         313,
                         314
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.StructuresOvertopping, new FailureMechanismDefaults(110, 1, 60, new[]
+                    HydraRingFailureMechanismType.StructuresOvertopping, new FailureMechanismDefaults(110, 60, new[]
                     {
                         421,
                         422,
                         423
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.StructuresClosure, new FailureMechanismDefaults(111, 1, 65, new[]
+                    HydraRingFailureMechanismType.StructuresClosure, new FailureMechanismDefaults(111, 65, new[]
                     {
                         422,
                         424,
@@ -109,7 +109,7 @@
                     })
                 },
                 {
-                    HydraRingFailureMechanismType.StructuresStructuralFailure, new FailureMechanismDefaults(112, 1, 65, new[]
+                    HydraRingFailureMechanismType.StructuresStructuralFailure, new FailureMechanismDefaults(112, 65, new[]
                     {
                         422,
                         424,
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/HydraRingCalculationTest.cs
===================================================================
diff -u -r59b1c01f9c155ff608c09769f19fd0158dea38e8 -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/HydraRingCalculationTest.cs	(.../HydraRingCalculationTest.cs)	(revision 59b1c01f9c155ff608c09769f19fd0158dea38e8)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/HydraRingCalculationTest.cs	(.../HydraRingCalculationTest.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -36,6 +36,7 @@
             // Assert
             Assert.AreEqual(1, hydraRingCalculation.HydraulicBoundaryLocationId);
             Assert.AreEqual(HydraRingFailureMechanismType.QVariant, hydraRingCalculation.FailureMechanismType);
+            Assert.AreEqual(4, hydraRingCalculation.CalculationTypeId);
             CollectionAssert.IsEmpty(hydraRingCalculation.Variables);
             CollectionAssert.IsEmpty(hydraRingCalculation.ProfilePoints);
             Assert.IsNaN(hydraRingCalculation.Beta);
@@ -65,6 +66,14 @@
                 }
             }
 
+            public override int CalculationTypeId
+            {
+                get
+                {
+                    return 4;
+                }
+            }
+
             public override HydraRingDikeSection DikeSection
             {
                 get
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Settings/FailureMechanismDefaultsProviderTest.cs
===================================================================
diff -u -rdd33f3b9d039c570742b8233da23326538c848cf -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Settings/FailureMechanismDefaultsProviderTest.cs	(.../FailureMechanismDefaultsProviderTest.cs)	(revision dd33f3b9d039c570742b8233da23326538c848cf)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Settings/FailureMechanismDefaultsProviderTest.cs	(.../FailureMechanismDefaultsProviderTest.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -29,54 +29,54 @@
     [TestFixture]
     public class FailureMechanismDefaultsProviderTest
     {
-        [TestCase(HydraRingFailureMechanismType.AssessmentLevel, 1, 2, 26, new[]
+        [TestCase(HydraRingFailureMechanismType.AssessmentLevel, 1, 26, new[]
         {
             1
         })]
-        [TestCase(HydraRingFailureMechanismType.QVariant, 3, 6, 114, new[]
+        [TestCase(HydraRingFailureMechanismType.QVariant, 3, 114, new[]
         {
             3,
             4,
             5
         })]
-        [TestCase(HydraRingFailureMechanismType.WaveHeight, 11, 2, 28, new[]
+        [TestCase(HydraRingFailureMechanismType.WaveHeight, 11, 28, new[]
         {
             11
         })]
-        [TestCase(HydraRingFailureMechanismType.WavePeakPeriod, 11, 2, 29, new[]
+        [TestCase(HydraRingFailureMechanismType.WavePeakPeriod, 11, 29, new[]
         {
             14
         })]
-        [TestCase(HydraRingFailureMechanismType.WaveSpectralPeriod, 11, 2, 29, new[]
+        [TestCase(HydraRingFailureMechanismType.WaveSpectralPeriod, 11, 29, new[]
         {
             16
         })]
-        [TestCase(HydraRingFailureMechanismType.DikesOvertopping, 101, 1, 1, new[]
+        [TestCase(HydraRingFailureMechanismType.DikesOvertopping, 101, 1, new[]
         {
             102,
             103
         })]
-        [TestCase(HydraRingFailureMechanismType.DikesPiping, 103, 1, 44, new[]
+        [TestCase(HydraRingFailureMechanismType.DikesPiping, 103, 44, new[]
         {
             311,
             313,
             314
         })]
-        [TestCase(HydraRingFailureMechanismType.StructuresOvertopping, 110, 1, 60, new[]
+        [TestCase(HydraRingFailureMechanismType.StructuresOvertopping, 110, 60, new[]
         {
             421,
             422,
             423
         })]
-        [TestCase(HydraRingFailureMechanismType.StructuresClosure, 111, 1, 65, new[]
+        [TestCase(HydraRingFailureMechanismType.StructuresClosure, 111, 65, new[]
         {
             422,
             424,
             425,
             426,
             427
         })]
-        [TestCase(HydraRingFailureMechanismType.StructuresStructuralFailure, 112, 1, 65, new[]
+        [TestCase(HydraRingFailureMechanismType.StructuresStructuralFailure, 112, 65, new[]
         {
             422,
             424,
@@ -88,7 +88,7 @@
             434,
             435
         })]
-        public void GetFailureMechanismDefaults_ReturnsExpectedFailureMechanismDefaults(HydraRingFailureMechanismType failureMechanismType, int expectedMechanismId, int expectedCalculationTypeId, int expectedVariableId, IEnumerable<int> expectedSubMechanismIds)
+        public void GetFailureMechanismDefaults_ReturnsExpectedFailureMechanismDefaults(HydraRingFailureMechanismType failureMechanismType, int expectedMechanismId, int expectedVariableId, IEnumerable<int> expectedSubMechanismIds)
         {
             // Setup
             var failureMechanismDefaultsProvider = new FailureMechanismDefaultsProvider();
@@ -98,7 +98,6 @@
 
             // Assert
             Assert.AreEqual(expectedMechanismId, failureMechanismDefaults.MechanismId);
-            Assert.AreEqual(expectedCalculationTypeId, failureMechanismDefaults.CalculationTypeId);
             Assert.AreEqual(expectedVariableId, failureMechanismDefaults.VariableId);
             Assert.AreEqual(expectedSubMechanismIds, failureMechanismDefaults.SubMechanismIds);
         }
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Settings/FailureMechanismDefaultsTest.cs
===================================================================
diff -u -re6f8ac7ecbea09b8c7500713e9c2a48844b67eed -rc1971492b8f3eb86ac4669d7247e1778fabd7a9b
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Settings/FailureMechanismDefaultsTest.cs	(.../FailureMechanismDefaultsTest.cs)	(revision e6f8ac7ecbea09b8c7500713e9c2a48844b67eed)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Settings/FailureMechanismDefaultsTest.cs	(.../FailureMechanismDefaultsTest.cs)	(revision c1971492b8f3eb86ac4669d7247e1778fabd7a9b)
@@ -31,20 +31,19 @@
         public void Constructor_ExpectedValues()
         {
             // Call
-            var failureMechanismDefaults = new FailureMechanismDefaults(1, 2, 3, new[]
+            var failureMechanismDefaults = new FailureMechanismDefaults(1, 2, new[]
             {
-                4,
-                5
+                3,
+                4
             });
 
             // Assert
             Assert.AreEqual(1, failureMechanismDefaults.MechanismId);
-            Assert.AreEqual(2, failureMechanismDefaults.CalculationTypeId);
-            Assert.AreEqual(3, failureMechanismDefaults.VariableId);
+            Assert.AreEqual(2, failureMechanismDefaults.VariableId);
             CollectionAssert.AreEqual(new[]
             {
-                4,
-                5
+                3,
+                4
             }, failureMechanismDefaults.SubMechanismIds);
         }
     }