Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/ISurfaceLineUpdateDataStrategy.cs
===================================================================
diff -u
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/ISurfaceLineUpdateDataStrategy.cs	(revision 0)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/ISurfaceLineUpdateDataStrategy.cs	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -0,0 +1,52 @@
+// 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 Core.Common.Base;
+using Ringtoets.Piping.Data;
+using Ringtoets.Piping.Primitives;
+
+namespace Ringtoets.Piping.IO.Importers
+{
+    /// <summary>
+    /// Interface describing the method of updating the data model after new surface lines 
+    /// have been imported.
+    /// </summary>
+    public interface ISurfaceLineUpdateDataStrategy
+    {
+        /// <summary>
+        /// Adds the imported data to the <paramref name="targetCollection"/>.
+        /// </summary>
+        /// <param name="targetCollection">The target collection which needs to be updated.</param>
+        /// <param name="readRingtoetsPipingSurfaceLines">The imported surface lines.</param>
+        /// <param name="sourceFilePath">The source path from where the surface lines were imported from.</param>
+        /// <returns>An <see cref="IEnumerable{IObservable}"/> of updated instances.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when any of the input parameters is <c>null</c>.</exception>
+        /// <exception cref="RingtoetsPipingSurfaceLineUpdateException">Thrown when applying the strategy has failed. The 
+        /// <see cref="RingtoetsPipingSurfaceLineUpdateException.InnerException"/> is set with a more detailed explanation
+        /// of why the exception occurs.</exception>
+        IEnumerable<IObservable> UpdateSurfaceLinesWithImportedData(
+            RingtoetsPipingSurfaceLineCollection targetCollection,
+            IEnumerable<RingtoetsPipingSurfaceLine> readRingtoetsPipingSurfaceLines,
+            string sourceFilePath);
+    }
+}
Fisheye: Tag 92549be285a5082435e9625732cf33ff50cd60b9 refers to a dead (removed) revision in file `Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/ISurfaceLineUpdateSurfaceLineStrategy.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj
===================================================================
diff -u -r36b1ab8fe4c395ade52f057cb2ce07960d04098c -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj	(.../Ringtoets.Piping.IO.csproj)	(revision 36b1ab8fe4c395ade52f057cb2ce07960d04098c)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Ringtoets.Piping.IO.csproj	(.../Ringtoets.Piping.IO.csproj)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -56,7 +56,7 @@
     <Compile Include="Exporters\PipingConfigurationWriter.cs" />
     <Compile Include="Importers\IStochasticSoilModelChangeHandler.cs" />
     <Compile Include="Importers\IStochasticSoilModelUpdateModelStrategy.cs" />
-    <Compile Include="Importers\ISurfaceLineUpdateSurfaceLineStrategy.cs" />
+    <Compile Include="Importers\ISurfaceLineUpdateDataStrategy.cs" />
     <Compile Include="Importers\RingtoetsPipingSurfaceLineUpdateException.cs" />
     <Compile Include="Importers\StochasticSoilModelImporter.cs" />
     <Compile Include="Importers\StochasticSoilModelUpdateException.cs" />
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/PipingSurfaceLinesCsvImporter.cs
===================================================================
diff -u -r425a1030cf1f383e0a8f5cbd712c52c5cc2d3369 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/PipingSurfaceLinesCsvImporter.cs	(.../PipingSurfaceLinesCsvImporter.cs)	(revision 425a1030cf1f383e0a8f5cbd712c52c5cc2d3369)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/PipingSurfaceLinesCsvImporter.cs	(.../PipingSurfaceLinesCsvImporter.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -54,7 +54,7 @@
 
         private const string characteristicPointsFileSubExtension = ".krp";
         private const string csvFileExtension = ".csv";
-        private readonly ISurfaceLineUpdateSurfaceLineStrategy surfaceLineUpdateStrategy;
+        private readonly ISurfaceLineUpdateDataStrategy surfaceLineUpdateStrategy;
         private readonly ILog log = LogManager.GetLogger(typeof(PipingSurfaceLinesCsvImporter));
 
         private readonly ReferenceLine referenceLine;
@@ -71,7 +71,7 @@
         public PipingSurfaceLinesCsvImporter(RingtoetsPipingSurfaceLineCollection importTarget,
             ReferenceLine referenceLine,
             string filePath,
-            ISurfaceLineUpdateSurfaceLineStrategy surfaceLineUpdateStrategy) : base(filePath, importTarget)
+            ISurfaceLineUpdateDataStrategy surfaceLineUpdateStrategy) : base(filePath, importTarget)
         {
             if (importTarget == null)
             {
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineReplaceDataStrategy.cs
===================================================================
diff -u -r425a1030cf1f383e0a8f5cbd712c52c5cc2d3369 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineReplaceDataStrategy.cs	(.../RingtoetsPipingSurfaceLineReplaceDataStrategy.cs)	(revision 425a1030cf1f383e0a8f5cbd712c52c5cc2d3369)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineReplaceDataStrategy.cs	(.../RingtoetsPipingSurfaceLineReplaceDataStrategy.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -33,7 +33,7 @@
     /// <summary>
     /// Strategy to replace the surface lines with the imported surface lines.
     /// </summary>
-    public class RingtoetsPipingSurfaceLineReplaceDataStrategy : ISurfaceLineUpdateSurfaceLineStrategy
+    public class RingtoetsPipingSurfaceLineReplaceDataStrategy : ISurfaceLineUpdateDataStrategy
     {
         private readonly PipingFailureMechanism failureMechanism;
 
@@ -53,8 +53,8 @@
         }
 
         public IEnumerable<IObservable> UpdateSurfaceLinesWithImportedData(RingtoetsPipingSurfaceLineCollection targetCollection,
-                                                                    IEnumerable<RingtoetsPipingSurfaceLine> readRingtoetsPipingSurfaceLines,
-                                                                    string sourceFilePath)
+                                                                           IEnumerable<RingtoetsPipingSurfaceLine> readRingtoetsPipingSurfaceLines,
+                                                                           string sourceFilePath)
         {
             if (targetCollection == null)
             {
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateStrategy.cs
===================================================================
diff -u -r393f18543bc78061b83f61fce09ca094d8fb1a05 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateStrategy.cs	(.../RingtoetsPipingSurfaceLineUpdateStrategy.cs)	(revision 393f18543bc78061b83f61fce09ca094d8fb1a05)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/RingtoetsPipingSurfaceLineUpdateStrategy.cs	(.../RingtoetsPipingSurfaceLineUpdateStrategy.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -34,11 +34,13 @@
 {
     /// <summary>
     /// Strategy for updating the current surface lines with the imported surface lines:
-    /// - Adds imported surface lines that are not part of the current collection.
-    /// - Removes surface lines that are part of the current collection, but are not part of the imported surface line collection.
-    /// - Updates the surface lines that are part of the current collection and are part of the imported surface line collection. 
+    /// <list type="bullet">
+    /// <item>Adds imported surface lines that are not part of the current collection.</item>
+    /// <item>Removes surface lines that are part of the current collection, but are not part of the imported surface line collection.</item>
+    /// <item>Updates the surface lines that are part of the current collection and are part of the imported surface line collection.</item>
+    /// </list>
     /// </summary>
-    public class RingtoetsPipingSurfaceLineUpdateDataStrategy : ISurfaceLineUpdateSurfaceLineStrategy
+    public class RingtoetsPipingSurfaceLineUpdateDataStrategy : ISurfaceLineUpdateDataStrategy
     {
         private readonly PipingFailureMechanism failureMechanism;
 
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/StochasticSoilModelUpdateDataStrategy.cs
===================================================================
diff -u -r3c3bc4318d728483de24e464ae6e15f3f02fa146 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/StochasticSoilModelUpdateDataStrategy.cs	(.../StochasticSoilModelUpdateDataStrategy.cs)	(revision 3c3bc4318d728483de24e464ae6e15f3f02fa146)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/FileImporter/StochasticSoilModelUpdateDataStrategy.cs	(.../StochasticSoilModelUpdateDataStrategy.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -34,11 +34,14 @@
 {
     /// <summary>
     /// Strategy for updating the current stochastic soil models with the imported stochastic soil models.
-    /// Adds stochastic soil models that are imported and are not part of current stochastic soil model collection.
-    /// Removes stochastic soil models that are part of the current stochastic soil model collection, but were not
+    /// <list type="bullet">
+    /// <item>Adds stochastic soil models that are imported and are not part of current stochastic soil model collection.</item>
+    /// <item>Removes stochastic soil models that are part of the current stochastic soil model collection, but were not
     /// amongst the imported stochastic soil models.
-    /// Updates stochastic soil models that are part of the current stochastic soil model collection and are also
-    /// imported.
+    /// </item>
+    /// <item>Updates stochastic soil models that are part of the current stochastic soil model collection and are also
+    /// imported.</item>
+    /// </list>
     /// </summary>
     public class StochasticSoilModelUpdateDataStrategy : IStochasticSoilModelUpdateModelStrategy
     {
Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -r7ee2bf67507878c09c5c587c38e6c82e5e213720 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 7ee2bf67507878c09c5c587c38e6c82e5e213720)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -971,7 +971,7 @@
 
         private static PipingSurfaceLinesCsvImporter PipingSurfaceLinesCsvImporter(RingtoetsPipingSurfaceLinesContext context,
                                                                                    string filePath,
-                                                                                   ISurfaceLineUpdateSurfaceLineStrategy strategy)
+                                                                                   ISurfaceLineUpdateDataStrategy strategy)
         {
             return new PipingSurfaceLinesCsvImporter(context.WrappedData,
                                                      context.AssessmentSection.ReferenceLine,
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineCollectionTest.cs
===================================================================
diff -u -r425a1030cf1f383e0a8f5cbd712c52c5cc2d3369 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineCollectionTest.cs	(.../RingtoetsPipingSurfaceLineCollectionTest.cs)	(revision 425a1030cf1f383e0a8f5cbd712c52c5cc2d3369)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineCollectionTest.cs	(.../RingtoetsPipingSurfaceLineCollectionTest.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -41,6 +41,33 @@
         }
 
         [Test]
+        public void AddRange_SurfaceLinesWithDifferentNames_AddsSurfaceLines()
+        {
+            // Setup
+            var surfaceLinesToAdd = new[]
+            {
+                new RingtoetsPipingSurfaceLine
+                {
+                    Name = "Name A"
+                },
+                new RingtoetsPipingSurfaceLine
+                {
+                    Name = "Name B"
+                }
+            };
+
+            var collection = new RingtoetsPipingSurfaceLineCollection();
+            const string expectedFilePath = "other/path";
+            
+            // Call
+            collection.AddRange(surfaceLinesToAdd, expectedFilePath);
+
+            // Assert
+            Assert.AreEqual(expectedFilePath, collection.SourcePath);
+            CollectionAssert.AreEqual(surfaceLinesToAdd, collection);
+        }
+
+        [Test]
         public void AddRange_SurfaceLinesWithSameNames_ThrowsArgumentException()
         {
             // Setup
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelCollectionTest.cs
===================================================================
diff -u -re1a8e98d60853beefbdb8c84e70f14165680ad7b -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelCollectionTest.cs	(.../StochasticSoilModelCollectionTest.cs)	(revision e1a8e98d60853beefbdb8c84e70f14165680ad7b)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelCollectionTest.cs	(.../StochasticSoilModelCollectionTest.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -40,6 +40,27 @@
         }
 
         [Test]
+        public void AddRange_SurfaceLinesWithDifferentNames_AddsSurfaceLines()
+        {
+            // Setup
+            var stochasticSoilModelsToAdd = new[]
+            {
+                new StochasticSoilModel(5, "Model A", "segmentA"),
+                new StochasticSoilModel(6, "Model B", "segmentA")
+            };
+
+            var collection = new StochasticSoilModelCollection();
+            const string expectedFilePath = "other/path";
+
+            // Call
+            collection.AddRange(stochasticSoilModelsToAdd, expectedFilePath);
+
+            // Assert
+            Assert.AreEqual(expectedFilePath, collection.SourcePath);
+            CollectionAssert.AreEqual(stochasticSoilModelsToAdd, collection);
+        }
+
+        [Test]
         public void AddRange_WithStochasticSoilModelsWithEqualNames_ThrowsArgumentException()
         {
             // Setup
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/PipingSurfaceLinesCsvImporterTest.cs
===================================================================
diff -u -r7b85dbce8bcc39e824c367468892764778527ce4 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/PipingSurfaceLinesCsvImporterTest.cs	(.../PipingSurfaceLinesCsvImporterTest.cs)	(revision 7b85dbce8bcc39e824c367468892764778527ce4)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/PipingSurfaceLinesCsvImporterTest.cs	(.../PipingSurfaceLinesCsvImporterTest.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -181,7 +181,7 @@
             bool importResult = importer.Import();
 
             // Assert
-            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccesfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccessfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
 
             // Sample some of the imported data:
             RingtoetsPipingSurfaceLine firstSurfaceLine = importTargetArray[0];
@@ -240,7 +240,7 @@
             };
 
             TestHelper.AssertLogMessagesAreGenerated(call, mesages, 4);
-            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccesfulImport(importResult, 1, validFilePath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccessfulImport(importResult, 1, validFilePath, surfaceLineUpdateStrategy);
 
             // Sample some of the imported data:
             RingtoetsPipingSurfaceLine firstSurfaceLine = importTargetArray[0];
@@ -400,7 +400,7 @@
             importResult = importer.Import();
 
             // Assert
-            AssertSuccesfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
+            AssertSuccessfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
         }
 
         [Test]
@@ -610,7 +610,7 @@
 
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 4);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 1, corruptPath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 1, corruptPath, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1"));
             Assert.AreEqual(3, importedSurfaceLines.First(sl => sl.Name == "Rotterdam1").Points.Length, "First line should have been added to the model.");
         }
@@ -661,7 +661,7 @@
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 4);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 2, corruptPath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 2, corruptPath, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1"));
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "ArtifcialLocal"));
 
@@ -715,7 +715,7 @@
                               Path.Combine(ioTestDataPath, "InvalidRow_DuplicatePointsCausingRecline.krp.csv"))
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 4);
-            AssertSuccesfulImport(importResult, 0, path, surfaceLineUpdateStrategy);
+            AssertSuccessfulImport(importResult, 0, path, surfaceLineUpdateStrategy);
 
             Assert.IsTrue(TestHelper.CanOpenFileForWrite(path));
         }
@@ -757,7 +757,7 @@
                               Path.Combine(ioTestDataPath, "InvalidRow_DuplicatePointsCausingZeroLength.krp.csv"))
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 4);
-            AssertSuccesfulImport(importResult, 0, path, surfaceLineUpdateStrategy);
+            AssertSuccessfulImport(importResult, 0, path, surfaceLineUpdateStrategy);
 
             Assert.IsTrue(TestHelper.CanOpenFileForWrite(path));
         }
@@ -798,7 +798,7 @@
                                                    nonExistingCharacteristicFile);
             TestHelper.AssertLogMessageIsGenerated(call, expectedLogMessage, 3);
 
-            AssertSuccesfulImport(importResult, 2, surfaceLinesFile, surfaceLineUpdateStrategy);
+            AssertSuccessfulImport(importResult, 2, surfaceLinesFile, surfaceLineUpdateStrategy);
         }
 
         [Test]
@@ -992,7 +992,7 @@
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 5);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 2, surfaceLinesFile, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 2, surfaceLinesFile, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1"));
             Assert.AreEqual(-1.02, importedSurfaceLines.First(sl => sl.Name == "Rotterdam1").DitchPolderSide.Z, "First characteristic points definition should be added to data model.");
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "ArtifcialLocal"));
@@ -1049,7 +1049,7 @@
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 6);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 2, surfaceLinesFile, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 2, surfaceLinesFile, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1Invalid"));
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "ArtifcialLocal"));
 
@@ -1112,7 +1112,7 @@
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 5);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 2, surfaceLinesPath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 2, surfaceLinesPath, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1"));
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "ArtifcialLocal"));
 
@@ -1175,7 +1175,7 @@
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages, 5);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 2, surfaceLinesPath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 2, surfaceLinesPath, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1"));
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "ArtifcialLocal"));
 
@@ -1247,7 +1247,7 @@
             };
             TestHelper.AssertLogMessagesAreGenerated(call, expectedLogMessages);
 
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccesfulImport(importResult, 2, surfaceLinesPath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importedSurfaceLines = AssertSuccessfulImport(importResult, 2, surfaceLinesPath, surfaceLineUpdateStrategy);
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "Rotterdam1Invalid"));
             Assert.AreEqual(1, importedSurfaceLines.Count(sl => sl.Name == "ArtifcialLocal"));
 
@@ -1341,7 +1341,7 @@
             bool importResult = importer.Import();
 
             // Assert
-            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccesfulImport(importResult, expectedNumberOfSurfaceLines, validSurfaceLinesFilePath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccessfulImport(importResult, expectedNumberOfSurfaceLines, validSurfaceLinesFilePath, surfaceLineUpdateStrategy);
 
             // Sample some of the imported data:
             RingtoetsPipingSurfaceLine firstSurfaceLine = importTargetArray[0];
@@ -1404,7 +1404,7 @@
             var message = "Profielschematisatie ArtifcialLocal doorkruist de huidige referentielijn niet of op meer dan één punt en kan niet worden geïmporteerd. Dit kan komen doordat de profielschematisatie een lokaal coördinaatsysteem heeft.";
             TestHelper.AssertLogMessageIsGenerated(call, message);
 
-            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccesfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccessfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
 
             // Sample some of the imported data:
             RingtoetsPipingSurfaceLine firstSurfaceLine = importTargetArray[0];
@@ -1451,7 +1451,7 @@
             var mesagge = "Profielschematisatie Rotterdam1 doorkruist de huidige referentielijn niet of op meer dan één punt en kan niet worden geïmporteerd.";
             TestHelper.AssertLogMessageIsGenerated(call, mesagge);
 
-            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccesfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccessfulImport(importResult, expectedNumberOfSurfaceLines, validFilePath, surfaceLineUpdateStrategy);
 
             // Sample some of the imported data:
             RingtoetsPipingSurfaceLine firstSurfaceLine = importTargetArray[0];
@@ -1496,7 +1496,7 @@
                                         "ArtifcialLocal");
             TestHelper.AssertLogMessageIsGenerated(call, message);
 
-            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccesfulImport(importResult, 1, validFilePath, surfaceLineUpdateStrategy);
+            RingtoetsPipingSurfaceLine[] importTargetArray = AssertSuccessfulImport(importResult, 1, validFilePath, surfaceLineUpdateStrategy);
 
             // Sample some of the imported data:
             RingtoetsPipingSurfaceLine firstSurfaceLine = importTargetArray[0];
@@ -1505,7 +1505,7 @@
             Assert.AreEqual(427776.654093, firstSurfaceLine.StartingWorldPoint.Y);
         }
 
-        private static RingtoetsPipingSurfaceLine[] AssertSuccesfulImport(bool importResult,
+        private static RingtoetsPipingSurfaceLine[] AssertSuccessfulImport(bool importResult,
                                                                           int expectedSurfaceLineCount,
                                                                           string expectedFilePath,
                                                                           TestSurfaceLineUpdateStrategy updateStrategy)
@@ -1534,7 +1534,7 @@
                                         expectedPoint, actualPoint));
         }
 
-        private class TestSurfaceLineUpdateStrategy : ISurfaceLineUpdateSurfaceLineStrategy
+        private class TestSurfaceLineUpdateStrategy : ISurfaceLineUpdateDataStrategy
         {
             public bool Updated { get; private set; }
             public string FilePath { get; private set; }
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/RingtoetsPipingSurfaceLineReplaceDataStrategyTest.cs
===================================================================
diff -u -r425a1030cf1f383e0a8f5cbd712c52c5cc2d3369 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/RingtoetsPipingSurfaceLineReplaceDataStrategyTest.cs	(.../RingtoetsPipingSurfaceLineReplaceDataStrategyTest.cs)	(revision 425a1030cf1f383e0a8f5cbd712c52c5cc2d3369)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/RingtoetsPipingSurfaceLineReplaceDataStrategyTest.cs	(.../RingtoetsPipingSurfaceLineReplaceDataStrategyTest.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -55,7 +55,7 @@
             var strategy = new RingtoetsPipingSurfaceLineReplaceDataStrategy(new PipingFailureMechanism());
 
             // Assert
-            Assert.IsInstanceOf<ISurfaceLineUpdateSurfaceLineStrategy>(strategy);
+            Assert.IsInstanceOf<ISurfaceLineUpdateDataStrategy>(strategy);
         }
 
         [Test]
@@ -195,7 +195,7 @@
         }
 
         [Test]
-        public void UpdateSurfaceLinesWithImportedData_CalculationWithOutputRemovedSurfaceLine_CalculationUpdatedAndReturnsAffectedObject()
+        public void UpdateSurfaceLinesWithImportedData_CalculationWithOutputSurfaceLine_CalculationUpdatedAndReturnsAffectedObject()
         {
             // Setup
             var existingSurfaceLine = new RingtoetsPipingSurfaceLine();
Index: Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/RingtoetsPipingSurfaceLineUpdateDataStrategyTest.cs
===================================================================
diff -u -r393f18543bc78061b83f61fce09ca094d8fb1a05 -r92549be285a5082435e9625732cf33ff50cd60b9
--- Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/RingtoetsPipingSurfaceLineUpdateDataStrategyTest.cs	(.../RingtoetsPipingSurfaceLineUpdateDataStrategyTest.cs)	(revision 393f18543bc78061b83f61fce09ca094d8fb1a05)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Plugin.Test/FileImporter/RingtoetsPipingSurfaceLineUpdateDataStrategyTest.cs	(.../RingtoetsPipingSurfaceLineUpdateDataStrategyTest.cs)	(revision 92549be285a5082435e9625732cf33ff50cd60b9)
@@ -55,7 +55,7 @@
             var strategy = new RingtoetsPipingSurfaceLineUpdateDataStrategy(new PipingFailureMechanism());
 
             // Assert
-            Assert.IsInstanceOf<ISurfaceLineUpdateSurfaceLineStrategy>(strategy);
+            Assert.IsInstanceOf<ISurfaceLineUpdateDataStrategy>(strategy);
         }
 
         [Test]
@@ -79,7 +79,7 @@
             var strategy = new RingtoetsPipingSurfaceLineUpdateDataStrategy(new PipingFailureMechanism());
 
             // Call
-            TestDelegate test = () => strategy.UpdateSurfaceLinesWithImportedData(new RingtoetsPipingSurfaceLineCollection(), 
+            TestDelegate test = () => strategy.UpdateSurfaceLinesWithImportedData(new RingtoetsPipingSurfaceLineCollection(),
                                                                                   null,
                                                                                   string.Empty);
 
@@ -95,7 +95,7 @@
             var strategy = new RingtoetsPipingSurfaceLineUpdateDataStrategy(new PipingFailureMechanism());
 
             // Call
-            TestDelegate test = () => strategy.UpdateSurfaceLinesWithImportedData(new RingtoetsPipingSurfaceLineCollection(), 
+            TestDelegate test = () => strategy.UpdateSurfaceLinesWithImportedData(new RingtoetsPipingSurfaceLineCollection(),
                                                                                   Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
                                                                                   null);
 
@@ -141,15 +141,27 @@
         {
             // Setup
             const string duplicateName = "Duplicate name it is";
-            var targetCollection = new RingtoetsPipingSurfaceLineCollection();
-            targetCollection.AddRange(new[]
+
+            var expectedSurfaceLine = new RingtoetsPipingSurfaceLine
             {
-                new RingtoetsPipingSurfaceLine
-                {
-                    Name = duplicateName
-                }
-            }, sourceFilePath);
+                Name = duplicateName
+            };
+            Point3D[] expectedGeometry =
+            {
+                new Point3D(0, 1, 2),
+                new Point3D(3, 4, 5),
+                new Point3D(6, 7, 8)
+            };
+            expectedSurfaceLine.SetGeometry(expectedGeometry);
 
+            var expectedCollection = new[]
+            {
+                expectedSurfaceLine
+            };
+
+            var targetCollection = new RingtoetsPipingSurfaceLineCollection();
+            targetCollection.AddRange(expectedCollection, sourceFilePath);
+
             RingtoetsPipingSurfaceLine[] importedSurfaceLines =
             {
                 new RingtoetsPipingSurfaceLine
@@ -173,6 +185,11 @@
             var exception = Assert.Throws<RingtoetsPipingSurfaceLineUpdateException>(call);
             Assert.AreEqual("Het bijwerken van de profielschematisaties is mislukt.", exception.Message);
             Assert.IsInstanceOf<InvalidOperationException>(exception.InnerException);
+
+            CollectionAssert.AreEqual(expectedCollection, targetCollection);
+            RingtoetsPipingSurfaceLine actualSurfaceLine = targetCollection[0];
+            Assert.AreEqual(expectedSurfaceLine.Name, actualSurfaceLine.Name);
+            CollectionAssert.AreEqual(expectedGeometry, actualSurfaceLine.Points);
         }
 
         [Test]
@@ -249,37 +266,5 @@
                 targetSurfaceLine
             }, affectedObjects);
         }
-
-        [Test]
-        public void UpdateSurfaceLinesWithImportedData_ImportedDataContainsDuplicateNames_ThrowsUpdateException()
-        {
-            // Setup
-            const string duplicateName = "Duplicate name it is";
-            RingtoetsPipingSurfaceLine[] importedSurfaceLines =
-            {
-                new RingtoetsPipingSurfaceLine
-                {
-                    Name = duplicateName
-                },
-                new RingtoetsPipingSurfaceLine
-                {
-                    Name = duplicateName
-                }
-            };
-
-            var failureMechanism = new PipingFailureMechanism();
-            var strategy = new RingtoetsPipingSurfaceLineReplaceDataStrategy(failureMechanism);
-
-            // Call
-            TestDelegate call = () => strategy.UpdateSurfaceLinesWithImportedData(failureMechanism.SurfaceLines,
-                                                                                  importedSurfaceLines,
-                                                                                  sourceFilePath);
-
-            // Assert
-            var exception = Assert.Throws<RingtoetsPipingSurfaceLineUpdateException>(call);
-            string expectedMessage = $"Profielschematisaties moeten een unieke naam hebben. Gevonden dubbele namen: {duplicateName}.";
-            Assert.AreEqual(expectedMessage, exception.Message);
-            Assert.IsInstanceOf<ArgumentException>(exception.InnerException);
-        }
     }
 }
\ No newline at end of file