Index: Core/Plugins/test/Core.Plugins.Map.Test/UITypeEditors/SelectableMetaDataAttributeTest.cs
===================================================================
diff -u -r8905298103eb01ce13dd5c1a2f267f879d4fda3e -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Core/Plugins/test/Core.Plugins.Map.Test/UITypeEditors/SelectableMetaDataAttributeTest.cs	(.../SelectableMetaDataAttributeTest.cs)	(revision 8905298103eb01ce13dd5c1a2f267f879d4fda3e)
+++ Core/Plugins/test/Core.Plugins.Map.Test/UITypeEditors/SelectableMetaDataAttributeTest.cs	(.../SelectableMetaDataAttributeTest.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -147,24 +147,6 @@
         }
 
         [Test]
-        public void GetHashCode_NotEqualObjects_ReturnDifferentHashCode()
-        {
-            // Setup
-            var selectableAttribute1 = new SelectableMetaDataAttribute("Test");
-            var selectableAttribute2 = new SelectableMetaDataAttribute("Test2");
-
-            // Pre-condition
-            Assert.IsFalse(selectableAttribute1.Equals(selectableAttribute2));
-
-            // Call
-            int hashCode1 = selectableAttribute1.GetHashCode();
-            int hashCode2 = selectableAttribute2.GetHashCode();
-
-            // Assert
-            Assert.AreNotEqual(hashCode1, hashCode2);
-        }
-
-        [Test]
         public void ToString_Always_ReturnMetaDataAttribute()
         {
             // Setup
Index: Ringtoets/Common/src/Ringtoets.Common.IO/IConfirmDataChangeHandler.cs
===================================================================
diff -u -r26da131fa5dbcf95f9a16de6f81eb4acc8d1be14 -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Common/src/Ringtoets.Common.IO/IConfirmDataChangeHandler.cs	(.../IConfirmDataChangeHandler.cs)	(revision 26da131fa5dbcf95f9a16de6f81eb4acc8d1be14)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/IConfirmDataChangeHandler.cs	(.../IConfirmDataChangeHandler.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -30,13 +30,13 @@
         /// Verifies whether the change to the data has side-effects;
         /// and therefore a confirmation is required.
         /// </summary>
-        /// <returns><c>True</c> if confirmation is required, <c>False</c> otherwise.</returns>
+        /// <returns><c>true</c> if confirmation is required, <c>false</c> otherwise.</returns>
         bool RequireConfirmation();
 
         /// <summary>
         /// Inquires for a confirmation on whether changing the data should be continued.
         /// </summary>
-        /// <returns><c>True</c> if confirmation is given; <c>False</c> otherwise.</returns>
+        /// <returns><c>true</c> if confirmation is given; <c>false</c> otherwise.</returns>
         /// <remarks>Should only be called when <see cref="RequireConfirmation"/> returns <c>true</c>.
         /// </remarks>
         bool InquireConfirmation();
Index: Ringtoets/Common/test/Ringtoets.Common.Forms.Test/PresentationObjects/SelectableHydraulicBoundaryLocationTest.cs
===================================================================
diff -u -re9a40c653a63e31757bf87930745200f9c22cb2e -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Common/test/Ringtoets.Common.Forms.Test/PresentationObjects/SelectableHydraulicBoundaryLocationTest.cs	(.../SelectableHydraulicBoundaryLocationTest.cs)	(revision e9a40c653a63e31757bf87930745200f9c22cb2e)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.Test/PresentationObjects/SelectableHydraulicBoundaryLocationTest.cs	(.../SelectableHydraulicBoundaryLocationTest.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -211,28 +211,6 @@
         }
 
         [Test]
-        [TestCaseSource(nameof(EqualityReferencePoints))]
-        public void GetHashCode_NotEqualObjects_ReturnsDifferenHashCode(Point2D referencePoint1,
-                                                                        Point2D referencePoint2)
-        {
-            // Setup
-            var inputItem1 = new SelectableHydraulicBoundaryLocation(new HydraulicBoundaryLocation(1, "Name", 0, 1),
-                                                                     referencePoint1);
-            var inputItem2 = new SelectableHydraulicBoundaryLocation(new HydraulicBoundaryLocation(2, "Name", 0, 1),
-                                                                     referencePoint2);
-
-            // Pre-condition
-            Assert.AreNotEqual(inputItem1, inputItem2);
-
-            // Call
-            int hashCodeItem1 = inputItem1.GetHashCode();
-            int hashCodeItem2 = inputItem2.GetHashCode();
-
-            // Assert
-            Assert.AreNotEqual(hashCodeItem1, hashCodeItem2);
-        }
-
-        [Test]
         [TestCaseSource(nameof(StringRepresentations))]
         public void ToString_DifferentReferencePoints_ReturnsExpectedString(HydraulicBoundaryLocation location,
                                                                             Point2D referencePoint, string expectedString)
@@ -289,9 +267,9 @@
 
             var distance = location.Location.GetEuclideanDistanceTo(referencePoint);
 
-            return distance/1000 < 1
+            return distance / 1000 < 1
                        ? string.Format("{0} ({1:f0} m)", location.Name, distance)
-                       : string.Format("{0} ({1:f1} km)", location.Name, distance/1000);
+                       : string.Format("{0} ({1:f1} km)", location.Name, distance / 1000);
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateDataStrategy.cs
===================================================================
diff -u
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateDataStrategy.cs	(revision 0)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateDataStrategy.cs	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -0,0 +1,167 @@
+// 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 System.Collections.Generic;
+using System.Linq;
+using Core.Common.Base;
+using Ringtoets.Common.Data.UpdateDataStrategies;
+using Ringtoets.Common.Service;
+using Ringtoets.Piping.Data;
+using Ringtoets.Piping.Forms;
+using Ringtoets.Piping.IO.Exceptions;
+using Ringtoets.Piping.IO.Importers;
+using Ringtoets.Piping.Plugin.Properties;
+using Ringtoets.Piping.Primitives;
+using Ringtoets.Piping.Service;
+
+namespace Ringtoets.Piping.Plugin.FileImporter
+{
+    /// <summary>
+    /// An <see cref="UpdateDataStrategyBase{TTargetData,TFailureMechanism}"/> for updating surface lines based on imported data.
+    /// </summary>
+    public class RingtoetsPipingSurfaceLineUpdateDataStrategy : UpdateDataStrategyBase<RingtoetsPipingSurfaceLine, PipingFailureMechanism>,
+                                                                ISurfaceLineUpdateDataStrategy
+    {
+        /// <summary>
+        /// Creates a new instance of <see cref="RingtoetsPipingSurfaceLineUpdateDataStrategy"/>.
+        /// </summary>
+        /// <param name="failureMechanism">The failure mechanism in which the surface lines are updated.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanism"/> is <c>null</c>.</exception>
+        public RingtoetsPipingSurfaceLineUpdateDataStrategy(PipingFailureMechanism failureMechanism)
+            : base(failureMechanism, new RingtoetsPipingSurfaceLineNameEqualityComparer()) {}
+
+        public IEnumerable<IObservable> UpdateSurfaceLinesWithImportedData(RingtoetsPipingSurfaceLineCollection targetCollection,
+                                                                           IEnumerable<RingtoetsPipingSurfaceLine> readRingtoetsPipingSurfaceLines,
+                                                                           string sourceFilePath)
+        {
+            try
+            {
+                return UpdateTargetCollectionData(targetCollection, readRingtoetsPipingSurfaceLines, sourceFilePath);
+            }
+            catch (ArgumentNullException)
+            {
+                throw;
+            }
+            catch (ArgumentException e)
+            {
+                throw new RingtoetsPipingSurfaceLineUpdateException(e.Message, e);
+            }
+            catch (InvalidOperationException e)
+            {
+                string message = Resources.RingtoetsPipingSurfaceLineUpdateDataStrategy_UpdateSurfaceLinesWithImportedData_Update_of_RingtoetsPipingSurfaceLine_has_failed;
+                throw new RingtoetsPipingSurfaceLineUpdateException(message, e);
+            }
+        }
+
+        /// <summary>
+        /// Class for comparing <see cref="RingtoetsPipingSurfaceLine"/> by only the name.
+        /// </summary>
+        private class RingtoetsPipingSurfaceLineNameEqualityComparer : IEqualityComparer<RingtoetsPipingSurfaceLine>
+        {
+            public bool Equals(RingtoetsPipingSurfaceLine x, RingtoetsPipingSurfaceLine y)
+            {
+                return x.Name == y.Name;
+            }
+
+            public int GetHashCode(RingtoetsPipingSurfaceLine obj)
+            {
+                return obj.Name.GetHashCode();
+            }
+        }
+
+        #region Updating Data Functions
+
+        protected override IEnumerable<IObservable> UpdateObjectAndDependentData(RingtoetsPipingSurfaceLine surfaceLineToUpdate,
+                                                                                 RingtoetsPipingSurfaceLine matchingSurfaceLine)
+        {
+            var affectedObjects = new List<IObservable>();
+
+            if (!surfaceLineToUpdate.Equals(matchingSurfaceLine))
+            {
+                surfaceLineToUpdate.Update(matchingSurfaceLine);
+
+                affectedObjects.AddRange(UpdateSurfaceLineDependentData(surfaceLineToUpdate));
+                affectedObjects.AddRange(UpdateStochasticSoilModel(surfaceLineToUpdate));
+            }
+
+            return affectedObjects;
+        }
+
+        private IEnumerable<IObservable> UpdateSurfaceLineDependentData(RingtoetsPipingSurfaceLine surfaceLine)
+        {
+            IEnumerable<PipingCalculation> affectedCalculations = GetAffectedCalculationWithSurfaceLine(surfaceLine);
+
+            var affectedObjects = new List<IObservable>
+            {
+                surfaceLine
+            };
+            foreach (PipingCalculation affectedCalculation in affectedCalculations)
+            {
+                affectedObjects.AddRange(RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(affectedCalculation));
+            }
+            return affectedObjects;
+        }
+
+        private IEnumerable<IObservable> UpdateStochasticSoilModel(RingtoetsPipingSurfaceLine updatedSurfaceLine)
+        {
+            IEnumerable<PipingCalculation> calculationsToUpdate = GetAffectedCalculationWithSurfaceLine(updatedSurfaceLine);
+
+            var affectedObjects = new List<IObservable>();
+            foreach (PipingCalculation calculation in calculationsToUpdate)
+            {
+                IEnumerable<StochasticSoilModel> matchingSoilModels = GetAvailableStochasticSoilModels(updatedSurfaceLine);
+
+                PipingInput calculationInput = calculation.InputParameters;
+                PipingInputService.SetMatchingStochasticSoilModel(calculationInput, matchingSoilModels);
+                affectedObjects.Add(calculationInput);
+            }
+
+            return affectedObjects;
+        }
+
+        private IEnumerable<PipingCalculation> GetAffectedCalculationWithSurfaceLine(RingtoetsPipingSurfaceLine surfaceLine)
+        {
+            IEnumerable<PipingCalculation> affectedCalculations =
+                failureMechanism.Calculations
+                                .Cast<PipingCalculation>()
+                                .Where(calc => ReferenceEquals(calc.InputParameters.SurfaceLine, surfaceLine));
+            return affectedCalculations;
+        }
+
+        private IEnumerable<StochasticSoilModel> GetAvailableStochasticSoilModels(RingtoetsPipingSurfaceLine surfaceLine)
+        {
+            return PipingCalculationConfigurationHelper.GetStochasticSoilModelsForSurfaceLine(surfaceLine,
+                                                                                              failureMechanism.StochasticSoilModels);
+        }
+
+        #endregion
+
+        #region Removing Data Functions
+
+        protected override IEnumerable<IObservable> RemoveObjectAndDependentData(RingtoetsPipingSurfaceLine removedSurfaceLine)
+        {
+            return PipingDataSynchronizationService.RemoveSurfaceLine(failureMechanism, removedSurfaceLine);
+        }
+
+        #endregion
+    }
+}
\ No newline at end of file
Fisheye: Tag 583456a0f5395189a54a8cedf4e4a7b40945d990 refers to a dead (removed) revision in file `Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateStrategy.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/Ringtoets.Piping.Plugin.csproj
===================================================================
diff -u -r26da131fa5dbcf95f9a16de6f81eb4acc8d1be14 -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/Ringtoets.Piping.Plugin.csproj	(.../Ringtoets.Piping.Plugin.csproj)	(revision 26da131fa5dbcf95f9a16de6f81eb4acc8d1be14)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/Ringtoets.Piping.Plugin.csproj	(.../Ringtoets.Piping.Plugin.csproj)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -61,7 +61,7 @@
     </Compile>
     <Compile Include="FileImporter\RingtoetsPipingSurfaceLineChangeHandler.cs" />
     <Compile Include="FileImporter\RingtoetsPipingSurfaceLineReplaceDataStrategy.cs" />
-    <Compile Include="FileImporter\RingtoetsPipingSurfaceLineUpdateStrategy.cs" />
+    <Compile Include="FileImporter\RingtoetsPipingSurfaceLineUpdateDataStrategy.cs" />
     <Compile Include="FileImporter\StochasticSoilModelChangeHandler.cs" />
     <Compile Include="FileImporter\StochasticSoilModelUpdateDataStrategy.cs" />
     <Compile Include="FileImporter\StochasticSoilModelReplaceDataStrategy.cs" />
Index: Ringtoets/Piping/src/Ringtoets.Piping.Primitives/RingtoetsPipingSurfaceLine.cs
===================================================================
diff -u -re9a40c653a63e31757bf87930745200f9c22cb2e -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Piping/src/Ringtoets.Piping.Primitives/RingtoetsPipingSurfaceLine.cs	(.../RingtoetsPipingSurfaceLine.cs)	(revision e9a40c653a63e31757bf87930745200f9c22cb2e)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Primitives/RingtoetsPipingSurfaceLine.cs	(.../RingtoetsPipingSurfaceLine.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -415,14 +415,12 @@
                 return false;
             }
 
-            int i = 0;
-            foreach (Point3D point in Points)
+            for (var index = 0; index < Points.Length; index++)
             {
-                if (!point.Equals(otherPoints[i]))
+                if (!Points[index].Equals(otherPoints[index]))
                 {
                     return false;
                 }
-                i++;
             }
             return true;
         }
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs
===================================================================
diff -u -r26da131fa5dbcf95f9a16de6f81eb4acc8d1be14 -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs	(.../RingtoetsPipingSurfaceLineTest.cs)	(revision 26da131fa5dbcf95f9a16de6f81eb4acc8d1be14)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs	(.../RingtoetsPipingSurfaceLineTest.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -990,36 +990,6 @@
             Assert.AreEqual(hashCodeOne, hashCodeTwo);
         }
 
-        [Test]
-        public void GetHashCode_DifferentSurfaceLines_ReturnDifferentHashCode()
-        {
-            // Setup
-            var surfaceLineOne = new RingtoetsPipingSurfaceLine
-            {
-                Name = "Name A"
-            };
-            surfaceLineOne.SetGeometry(new[]
-            {
-                new Point3D(1, 2, 3)
-            });
-
-            var surfaceLineTwo = new RingtoetsPipingSurfaceLine
-            {
-                Name = "Name A"
-            };
-            surfaceLineTwo.SetGeometry(new[]
-            {
-                new Point3D(3, 4, 5)
-            });
-
-            // Call
-            int hashCodeOne = surfaceLineOne.GetHashCode();
-            int hashCodeTwo = surfaceLineTwo.GetHashCode();
-
-            // Assert
-            Assert.AreNotEqual(hashCodeOne, hashCodeTwo);
-        }
-
         private static void CreateTestGeometry(Point3D testPoint, RingtoetsPipingSurfaceLine surfaceLine)
         {
             var random = new Random(21);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilProfileTest.cs
===================================================================
diff -u -r7172df944db7fd2d59d68a7a8def96110a44ed9b -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilProfileTest.cs	(.../StochasticSoilProfileTest.cs)	(revision 7172df944db7fd2d59d68a7a8def96110a44ed9b)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilProfileTest.cs	(.../StochasticSoilProfileTest.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -196,6 +196,21 @@
         }
 
         [Test]
+        public void GetHashCode_EqualStochasticSoilProfile_ReturnSameHashCode()
+        {
+            // Setup
+            var stochasticSoilProfileA = new StochasticSoilProfile(0.2, SoilProfileType.SoilProfile1D, 234);
+            var stochasticSoilProfileB = new StochasticSoilProfile(0.2, SoilProfileType.SoilProfile1D, 234);
+
+            // Call
+            int hashCodeOne = stochasticSoilProfileA.GetHashCode();
+            int hashCodeTwo = stochasticSoilProfileB.GetHashCode();
+
+            // Assert
+            Assert.AreEqual(hashCodeOne, hashCodeTwo);
+        }
+
+        [Test]
         public void ToString_WithNullName_ReturnsStringEmpty()
         {
             // Setup
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/ImportInfos/RingtoetsPipingSurfaceLinesContextImportInfoTest.cs
===================================================================
diff -u -r110999cffbcac705d99ff96033e9eabb0e0b5e12 -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/ImportInfos/RingtoetsPipingSurfaceLinesContextImportInfoTest.cs	(.../RingtoetsPipingSurfaceLinesContextImportInfoTest.cs)	(revision 110999cffbcac705d99ff96033e9eabb0e0b5e12)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/ImportInfos/RingtoetsPipingSurfaceLinesContextImportInfoTest.cs	(.../RingtoetsPipingSurfaceLinesContextImportInfoTest.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -169,7 +169,7 @@
         }
 
         [Test]
-        public void CreateFileImporter_Always_ReturnFileImporter()
+        public void CreateFileImporter_ValidInput_ReturnFileImporter()
         {
             // Setup
             var mocks = new MockRepository();
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/UpdateInfos/RingtoetsPipingSurfaceLinesContextUpdateInfoTest.cs
===================================================================
diff -u -r110999cffbcac705d99ff96033e9eabb0e0b5e12 -r583456a0f5395189a54a8cedf4e4a7b40945d990
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/UpdateInfos/RingtoetsPipingSurfaceLinesContextUpdateInfoTest.cs	(.../RingtoetsPipingSurfaceLinesContextUpdateInfoTest.cs)	(revision 110999cffbcac705d99ff96033e9eabb0e0b5e12)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/UpdateInfos/RingtoetsPipingSurfaceLinesContextUpdateInfoTest.cs	(.../RingtoetsPipingSurfaceLinesContextUpdateInfoTest.cs)	(revision 583456a0f5395189a54a8cedf4e4a7b40945d990)
@@ -198,7 +198,7 @@
         }
 
         [Test]
-        public void CreateFileImporter_Always_ReturnFileImporter()
+        public void CreateFileImporter_ValidInput_ReturnFileImporter()
         {
             // Setup
             var mocks = new MockRepository();