Index: Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSection/BackgroundMapData.cs
===================================================================
diff -u -r709931efbca2f60911829a07dc275f19b2ad0af0 -r7342bdbb53114c7b63144219a8fa9df9a097192a
--- Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSection/BackgroundMapData.cs	(.../BackgroundMapData.cs)	(revision 709931efbca2f60911829a07dc275f19b2ad0af0)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSection/BackgroundMapData.cs	(.../BackgroundMapData.cs)	(revision 7342bdbb53114c7b63144219a8fa9df9a097192a)
@@ -46,5 +46,10 @@
         /// Gets or sets the transparency of the background.
         /// </summary>
         public RoundedDouble Transparency { get; set; }
+
+        /// <summary>
+        /// Gets or sets the type of the background map data.
+        /// </summary>
+        public BackgroundMapDataType BackgroundMapDataType { get; set; }
     }
 }
\ No newline at end of file
Index: Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSection/BackgroundMapDataType.cs
===================================================================
diff -u
--- Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSection/BackgroundMapDataType.cs	(revision 0)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSection/BackgroundMapDataType.cs	(revision 7342bdbb53114c7b63144219a8fa9df9a097192a)
@@ -0,0 +1,39 @@
+// 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.
+
+namespace Ringtoets.Common.Data.AssessmentSection
+{
+    /// <summary>
+    /// Enumeration that defines the possible types of a <see cref="BackgroundMapData"/>.
+    /// </summary>
+    public enum BackgroundMapDataType
+    {
+        /// <summary>
+        /// Web Map Tile Service background map data type.
+        /// </summary>
+        Wmts,
+
+        /// <summary>
+        /// Well known tile source background map data type.
+        /// </summary>
+        WellKnown
+    }
+}
\ No newline at end of file
Index: Ringtoets/Common/src/Ringtoets.Common.Data/Ringtoets.Common.Data.csproj
===================================================================
diff -u -r709931efbca2f60911829a07dc275f19b2ad0af0 -r7342bdbb53114c7b63144219a8fa9df9a097192a
--- Ringtoets/Common/src/Ringtoets.Common.Data/Ringtoets.Common.Data.csproj	(.../Ringtoets.Common.Data.csproj)	(revision 709931efbca2f60911829a07dc275f19b2ad0af0)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Ringtoets.Common.Data.csproj	(.../Ringtoets.Common.Data.csproj)	(revision 7342bdbb53114c7b63144219a8fa9df9a097192a)
@@ -40,6 +40,7 @@
     </Compile>
     <Compile Include="AssessmentSection\AssessmentSectionComposition.cs" />
     <Compile Include="AssessmentSection\BackgroundMapData.cs" />
+    <Compile Include="AssessmentSection\BackgroundMapDataType.cs" />
     <Compile Include="AssessmentSection\IAssessmentSection.cs" />
     <Compile Include="AssessmentSection\ReferenceLine.cs" />
     <Compile Include="AssessmentSection\ReferenceLineMeta.cs" />
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/AssessmentSection/BackgroundMapDataTest.cs
===================================================================
diff -u -r709931efbca2f60911829a07dc275f19b2ad0af0 -r7342bdbb53114c7b63144219a8fa9df9a097192a
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/AssessmentSection/BackgroundMapDataTest.cs	(.../BackgroundMapDataTest.cs)	(revision 709931efbca2f60911829a07dc275f19b2ad0af0)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/AssessmentSection/BackgroundMapDataTest.cs	(.../BackgroundMapDataTest.cs)	(revision 7342bdbb53114c7b63144219a8fa9df9a097192a)
@@ -37,6 +37,7 @@
             Assert.IsTrue(backgroundMapData.IsVisible);
             Assert.AreEqual(2, backgroundMapData.Transparency.NumberOfDecimalPlaces);
             Assert.AreEqual(0, backgroundMapData.Transparency.Value);
+            Assert.AreEqual(BackgroundMapDataType.Wmts, backgroundMapData.BackgroundMapDataType);
         }
     }
 }
\ No newline at end of file