Index: Core/Common/src/Core.Common.Base/Core.Common.Base.csproj
===================================================================
diff -u -rdaf4bf00e8ea376485f54faa2fee8497607ddfb0 -rb45253e05c4d283273a39672c5ca8aaf1b398d71
--- Core/Common/src/Core.Common.Base/Core.Common.Base.csproj	(.../Core.Common.Base.csproj)	(revision daf4bf00e8ea376485f54faa2fee8497607ddfb0)
+++ Core/Common/src/Core.Common.Base/Core.Common.Base.csproj	(.../Core.Common.Base.csproj)	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -88,6 +88,7 @@
       <Link>Properties\GlobalAssembly.cs</Link>
     </Compile>
     <Compile Include="Geometry\Math2D.cs" />
+    <Compile Include="Data\ProjectComparer.cs" />
     <Compile Include="Geometry\Point2D.cs" />
     <Compile Include="Geometry\Point3D.cs" />
     <Compile Include="Geometry\Segment2D.cs" />
Index: Core/Common/src/Core.Common.Base/Data/Project.cs
===================================================================
diff -u -r4512af7782ee31b36941bb280b54d9da2953dd71 -rb45253e05c4d283273a39672c5ca8aaf1b398d71
--- Core/Common/src/Core.Common.Base/Data/Project.cs	(.../Project.cs)	(revision 4512af7782ee31b36941bb280b54d9da2953dd71)
+++ Core/Common/src/Core.Common.Base/Data/Project.cs	(.../Project.cs)	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -20,7 +20,6 @@
 // All rights reserved.
 
 using System.Collections.Generic;
-
 using Core.Common.Base.Properties;
 using Core.Common.Base.Storage;
 
Index: Core/Common/src/Core.Common.Base/Data/ProjectComparer.cs
===================================================================
diff -u
--- Core/Common/src/Core.Common.Base/Data/ProjectComparer.cs	(revision 0)
+++ Core/Common/src/Core.Common.Base/Data/ProjectComparer.cs	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -0,0 +1,50 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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.Linq;
+
+namespace Core.Common.Base.Data
+{
+    /// <summary>
+    /// This class can be used to compare <see cref="Project"/> objects.
+    /// </summary>
+    public static class ProjectComparer
+    {
+        /// <summary>
+        /// Checks if <paramref name="other"/> is equal to a new instance of <see cref="Project"/>.
+        /// </summary>
+        /// <param name="other"><see cref="Project"/> to check.</param>
+        /// <returns><c>True</c> if <paramref name="other"/> is equal to a new instance of <see cref="Project"/>, <c>false</c> otherwise.</returns>
+        public static bool EqualsToNew(Project other)
+        {
+            var newProject = new Project();
+            return Equals(newProject, other);
+        }
+
+        private static bool Equals(Project x, Project y)
+        {
+            return string.Equals(x.Name, y.Name) &&
+                   string.Equals(x.Description, y.Description) &&
+                   x.StorageId == y.StorageId &&
+                   x.Items.SequenceEqual(y.Items);
+        }
+    }
+}
\ No newline at end of file
Index: Core/Common/src/Core.Common.Gui/Commands/StorageCommandHandler.cs
===================================================================
diff -u -r276383b754de8eafea064dd780e118d922379d76 -rb45253e05c4d283273a39672c5ca8aaf1b398d71
--- Core/Common/src/Core.Common.Gui/Commands/StorageCommandHandler.cs	(.../StorageCommandHandler.cs)	(revision 276383b754de8eafea064dd780e118d922379d76)
+++ Core/Common/src/Core.Common.Gui/Commands/StorageCommandHandler.cs	(.../StorageCommandHandler.cs)	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -78,7 +78,7 @@
         public bool ContinueIfHasChanges()
         {
             var project = projectOwner.Project;
-            if (project == null || project.Equals(new Project()) || !projectPersistor.HasChanges(project))
+            if (project == null || ProjectComparer.EqualsToNew(project) || !projectPersistor.HasChanges(project))
             {
                 return true;
             }
Index: Core/Common/test/Core.Common.Base.Test/Core.Common.Base.Test.csproj
===================================================================
diff -u -rdaf4bf00e8ea376485f54faa2fee8497607ddfb0 -rb45253e05c4d283273a39672c5ca8aaf1b398d71
--- Core/Common/test/Core.Common.Base.Test/Core.Common.Base.Test.csproj	(.../Core.Common.Base.Test.csproj)	(revision daf4bf00e8ea376485f54faa2fee8497607ddfb0)
+++ Core/Common/test/Core.Common.Base.Test/Core.Common.Base.Test.csproj	(.../Core.Common.Base.Test.csproj)	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -86,6 +86,7 @@
     <Compile Include="Geometry\Point2DTest.cs" />
     <Compile Include="Geometry\Point3DTest.cs" />
     <Compile Include="Geometry\Segment2DTest.cs" />
+    <Compile Include="Data\ProjectComparerTest.cs" />
     <Compile Include="IO\FileImporterBaseTest.cs" />
     <Compile Include="ObservableTest.cs" />
     <Compile Include="Plugin\ApplicationCoreTest.cs" />
@@ -116,6 +117,9 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="..\..\..\..\build\Copying.Lesser.licenseheader">
+      <Link>Copying.Lesser.licenseheader</Link>
+    </None>
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
Index: Core/Common/test/Core.Common.Base.Test/Data/ProjectComparerTest.cs
===================================================================
diff -u
--- Core/Common/test/Core.Common.Base.Test/Data/ProjectComparerTest.cs	(revision 0)
+++ Core/Common/test/Core.Common.Base.Test/Data/ProjectComparerTest.cs	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -0,0 +1,105 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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 Core.Common.Base.Data;
+using NUnit.Framework;
+
+namespace Core.Common.Base.Test.Data
+{
+    [TestFixture]
+    public class ProjectComparerTest
+    {
+        [Test]
+        public void EqualsToNew_NewProject_ReturnsTrue()
+        {
+            // Setup
+            Project newProject = new Project();
+
+            // Call
+            bool result = ProjectComparer.EqualsToNew(newProject);
+
+            // Assert
+            Assert.IsTrue(result);
+        }
+
+        [Test]
+        public void EqualsToNew_ProjectNameChanged_ReturnsFalse()
+        {
+            // Setup
+            Project newProject = new Project
+            {
+                Name = "<some name>"
+            };
+
+            // Call
+            bool result = ProjectComparer.EqualsToNew(newProject);
+
+            // Assert
+            Assert.IsFalse(result);
+        }
+
+        [Test]
+        public void EqualsToNew_ProjectDescriptionChanged_ReturnsFalse()
+        {
+            // Setup
+            Project newProject = new Project
+            {
+                Description = "<some description>"
+            };
+
+            // Call
+            bool result = ProjectComparer.EqualsToNew(newProject);
+
+            // Assert
+            Assert.IsFalse(result);
+        }
+
+        [Test]
+        public void EqualsToNew_ProjectStorageIdChanged_ReturnsFalse()
+        {
+            // Setup
+            Project newProject = new Project
+            {
+                StorageId = 1L
+            };
+
+            // Call
+            bool result = ProjectComparer.EqualsToNew(newProject);
+
+            // Assert
+            Assert.IsFalse(result);
+        }
+
+        [Test]
+        public void EqualsToNew_ProjectItemsChanged_ReturnsFalse()
+        {
+            // Setup
+            Project newProject = new Project();
+            newProject.Items.Add(new object());
+
+            // Call
+            bool result = ProjectComparer.EqualsToNew(newProject);
+
+            // Assert
+            Assert.IsFalse(result);
+        }
+    }
+}
\ No newline at end of file
Index: Core/Common/test/Core.Common.Gui.Test/Commands/StorageCommandHandlerTest.cs
===================================================================
diff -u -r276383b754de8eafea064dd780e118d922379d76 -rb45253e05c4d283273a39672c5ca8aaf1b398d71
--- Core/Common/test/Core.Common.Gui.Test/Commands/StorageCommandHandlerTest.cs	(.../StorageCommandHandlerTest.cs)	(revision 276383b754de8eafea064dd780e118d922379d76)
+++ Core/Common/test/Core.Common.Gui.Test/Commands/StorageCommandHandlerTest.cs	(.../StorageCommandHandlerTest.cs)	(revision b45253e05c4d283273a39672c5ca8aaf1b398d71)
@@ -533,8 +533,6 @@
             var toolViewController = mocks.Stub<IToolViewController>();
             var projectMock = mocks.StrictMock<Project>();
             var projectStorageMock = mocks.Stub<IStoreProject>();
-            projectStorageMock.Expect(p => p.HasChanges(null)).IgnoreArguments().Return(false);
-
             var projectOwnerMock = mocks.Stub<IProjectOwner>();
             projectOwnerMock.Project = projectMock;
             mocks.ReplayAll();
@@ -561,6 +559,7 @@
             var mainWindowController = mocks.Stub<IMainWindowController>();
             var toolViewController = mocks.Stub<IToolViewController>();
             var projectMock = mocks.StrictMock<Project>();
+            projectMock.StorageId = 1234L;
             var projectStorageMock = mocks.Stub<IStoreProject>();
             projectStorageMock.Expect(p => p.HasChanges(null)).IgnoreArguments().Return(true);
 
@@ -601,6 +600,7 @@
             var mainWindowController = mocks.Stub<IMainWindowController>();
             var toolViewController = mocks.Stub<IToolViewController>();
             var projectMock = mocks.StrictMock<Project>();
+            projectMock.StorageId = 1234L;
             var projectStorageMock = mocks.Stub<IStoreProject>();
             projectStorageMock.Expect(p => p.HasChanges(null)).IgnoreArguments().Return(true);
 
@@ -641,7 +641,7 @@
             var mainWindowController = mocks.Stub<IMainWindowController>();
             var toolViewController = mocks.Stub<IToolViewController>();
             var projectMock = mocks.StrictMock<Project>();
-
+            projectMock.StorageId = 1234L;
             var projectFilePath = "some path";
 
             var projectStorageMock = mocks.Stub<IStoreProject>();