Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillXmlDamMStabDocFromIo.cs
===================================================================
diff -u -r3135 -r3136
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillXmlDamMStabDocFromIo.cs	(.../FillXmlDamMStabDocFromIo.cs)	(revision 3135)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillXmlDamMStabDocFromIo.cs	(.../FillXmlDamMStabDocFromIo.cs)	(revision 3136)
@@ -42,9 +42,27 @@
             xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixSurfaceLine = new tnsbPrefixSurfaceLineTnsbPrefixSurfacePoint[ioDamMStabDamDoc.MStabInput.SurfaceLine.Count];
             TransferSurfaceline(ioDamMStabDamDoc.MStabInput.SurfaceLine, xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixSurfaceLine);
 
+            xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixCharacteristicPoints = 
+                new tnsbPrefixCharacteristicPointsTnsbPrefixCharacteristicPoint[ioDamMStabDamDoc.MStabInput.CharacteristicPoints.Count];
+            TransferCharacteristicPoints(ioDamMStabDamDoc.MStabInput.CharacteristicPoints, xmlDamMStabDoc.tnsPrefixDamMStabInput.tnsbPrefixCharacteristicPoints);
+
             return xmlDamMStabDoc;
         }
 
+        private static void TransferCharacteristicPoints(List<IoCharacteristicPoint> ioCharacteristicPoints, 
+            tnsbPrefixCharacteristicPointsTnsbPrefixCharacteristicPoint[] xmlCharacteristicPoints)
+        {
+            for (int i = 0; i < ioCharacteristicPoints.Count; i++)
+            {
+                xmlCharacteristicPoints[i] = new tnsbPrefixCharacteristicPointsTnsbPrefixCharacteristicPoint()
+                {
+                    XCoord = ioCharacteristicPoints[i].X,
+                    YCoord = ioCharacteristicPoints[i].Y,
+                    CharacteristicPointType = ioCharacteristicPoints[i].CharacteristicPointType
+                };
+            }
+        }
+
         private static void TransferSurfaceline(List<IoSurfacePoint> ioSurfaceLine, tnsbPrefixSurfaceLineTnsbPrefixSurfacePoint[] xmlSurfaceLine)
         {
             for (int i = 0; i < ioSurfaceLine.Count; i++)
Index: DamTools/LayerOnSlopeTool/trunk/xsd/DamMStabDefinitions.xsd
===================================================================
diff -u -r3120 -r3136
--- DamTools/LayerOnSlopeTool/trunk/xsd/DamMStabDefinitions.xsd	(.../DamMStabDefinitions.xsd)	(revision 3120)
+++ DamTools/LayerOnSlopeTool/trunk/xsd/DamMStabDefinitions.xsd	(.../DamMStabDefinitions.xsd)	(revision 3136)
@@ -123,23 +123,12 @@
   </xs:simpleType>
   <xs:simpleType name="CharacteristicPointType">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="None" />
+      <xs:enumeration value="Unknown" />
       <xs:enumeration value="SurfaceLevelOutside" />
       <xs:enumeration value="DikeToeAtRiver" />
-      <xs:enumeration value="ShoulderTopOutside" />
-      <xs:enumeration value="ShoulderBaseOutside" />
       <xs:enumeration value="DikeTopAtRiver" />
-      <xs:enumeration value="DikeLine" />
-      <xs:enumeration value="TrafficLoadOutside" />
-      <xs:enumeration value="TrafficLoadInside" />
       <xs:enumeration value="DikeTopAtPolder" />
-      <xs:enumeration value="ShoulderBaseInside" />
-      <xs:enumeration value="ShoulderTopInside" />
       <xs:enumeration value="DikeToeAtPolder" />
-      <xs:enumeration value="DitchDikeSide" />
-      <xs:enumeration value="BottomDitchDikeSide" />
-      <xs:enumeration value="BottomDitchPolderSide" />
-      <xs:enumeration value="DitchPolderSide" />
       <xs:enumeration value="SurfaceLevelInside" />
     </xs:restriction>
   </xs:simpleType>
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoCharacteristicPoint.cs
===================================================================
diff -u -r3117 -r3136
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoCharacteristicPoint.cs	(.../IoCharacteristicPoint.cs)	(revision 3117)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/IoCharacteristicPoint.cs	(.../IoCharacteristicPoint.cs)	(revision 3136)
@@ -23,6 +23,11 @@
 {
     public class IoCharacteristicPoint
     {
-        
+        public double X { get; set; }
+
+        public double Y { get; set; }
+
+        public CharacteristicPointType CharacteristicPointType { get; set; }
+
     }
 }
\ No newline at end of file
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io.Tests/IoDamMStabDocSeriliazerTests.cs
===================================================================
diff -u -r3135 -r3136
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io.Tests/IoDamMStabDocSeriliazerTests.cs	(.../IoDamMStabDocSeriliazerTests.cs)	(revision 3135)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io.Tests/IoDamMStabDocSeriliazerTests.cs	(.../IoDamMStabDocSeriliazerTests.cs)	(revision 3136)
@@ -77,6 +77,11 @@
             });
             ioMStabDamDoc.MStabInput.SurfaceLine.Add(new IoSurfacePoint()
             {
+                X = 2.0,
+                Y = 1.5
+            });
+            ioMStabDamDoc.MStabInput.SurfaceLine.Add(new IoSurfacePoint()
+            {
                 X = 3.0,
                 Y = 1.5
             });
@@ -87,6 +92,11 @@
             });
             ioMStabDamDoc.MStabInput.SurfaceLine.Add(new IoSurfacePoint()
             {
+                X = 6.0,
+                Y = 2.5
+            });
+            ioMStabDamDoc.MStabInput.SurfaceLine.Add(new IoSurfacePoint()
+            {
                 X = 7.0,
                 Y = 2.5
             });
@@ -100,7 +110,44 @@
                 X = 15.0,
                 Y = 0.5
             });
+
             // Characteristic Points
+            ioMStabDamDoc.MStabInput.CharacteristicPoints.Add(new IoCharacteristicPoint()
+            {
+                X = 1.0,
+                Y = 1.5,
+                CharacteristicPointType = CharacteristicPointType.SurfaceLevelOutside
+            });
+            ioMStabDamDoc.MStabInput.CharacteristicPoints.Add(new IoCharacteristicPoint()
+            {
+                X = 3.0,
+                Y = 1.5,
+                CharacteristicPointType = CharacteristicPointType.DikeToeAtRiver
+            });
+            ioMStabDamDoc.MStabInput.CharacteristicPoints.Add(new IoCharacteristicPoint()
+            {
+                X = 5.0,
+                Y = 2.5,
+                CharacteristicPointType = CharacteristicPointType.DikeTopAtRiver
+            });
+            ioMStabDamDoc.MStabInput.CharacteristicPoints.Add(new IoCharacteristicPoint()
+            {
+                X = 7.0,
+                Y = 2.5,
+                CharacteristicPointType = CharacteristicPointType.DikeTopAtPolder
+            });
+            ioMStabDamDoc.MStabInput.CharacteristicPoints.Add(new IoCharacteristicPoint()
+            {
+                X = 10.0,
+                Y = 0.5,
+                CharacteristicPointType = CharacteristicPointType.DikeToeAtPolder
+            });
+            ioMStabDamDoc.MStabInput.CharacteristicPoints.Add(new IoCharacteristicPoint()
+            {
+                X = 15.0,
+                Y = 0.5,
+                CharacteristicPointType = CharacteristicPointType.SurfaceLevelInside
+            });
 
             return ioMStabDamDoc;
         }
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillIoDamMStabDocFromXml.cs
===================================================================
diff -u -r3135 -r3136
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillIoDamMStabDocFromXml.cs	(.../FillIoDamMStabDocFromXml.cs)	(revision 3135)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/FillIoDamMStabDocFromXml.cs	(.../FillIoDamMStabDocFromXml.cs)	(revision 3136)
@@ -35,9 +35,24 @@
             TransferGeometryCreationOptions(xmlDamMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixGeometryCreationOptions, ioMStabDamDoc.MStabInput.GeometryCreationOptions);
             TransferModel(xmlDamMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixModel, ioMStabDamDoc.MStabInput.Model);
             TransferSurfaceLine(xmlDamMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixSurfaceLine, ioMStabDamDoc.MStabInput.SurfaceLine);
+            TransferCharacteristicPoints(xmlDamMStabDamDoc.tnsPrefixDamMStabInput.tnsbPrefixCharacteristicPoints, ioMStabDamDoc.MStabInput.CharacteristicPoints);
             return ioMStabDamDoc;
         }
 
+        private static void TransferCharacteristicPoints(tnsbPrefixCharacteristicPointsTnsbPrefixCharacteristicPoint[] xmlCharacteristicPoints, 
+            List<IoCharacteristicPoint> ioCharacteristicPoints)
+        {
+            for (int i = 0; i < xmlCharacteristicPoints.Length; i++)
+            {
+                ioCharacteristicPoints.Add(new IoCharacteristicPoint()
+                {
+                    X = xmlCharacteristicPoints[i].XCoord,
+                    Y = xmlCharacteristicPoints[i].YCoord,
+                    CharacteristicPointType = xmlCharacteristicPoints[i].CharacteristicPointType
+                });
+            }
+        }
+
         private static void TransferSurfaceLine(tnsbPrefixSurfaceLineTnsbPrefixSurfacePoint[] xmlSurfaceLine, List<IoSurfacePoint> ioSurfaceLine)
         {
             for (int i = 0; i < xmlSurfaceLine.Length; i++)
Index: DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/DamMStabDoc.cs
===================================================================
diff -u -r3120 -r3136
--- DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/DamMStabDoc.cs	(.../DamMStabDoc.cs)	(revision 3120)
+++ DamTools/LayerOnSlopeTool/trunk/src/Deltares.LayerOnSlopeTool.Io/DamMStabDoc.cs	(.../DamMStabDoc.cs)	(revision 3136)
@@ -150,7 +150,7 @@
     public enum CharacteristicPointType {
         
         /// <remarks/>
-        None,
+        Unknown,
         
         /// <remarks/>
         SurfaceLevelOutside,
@@ -159,48 +159,15 @@
         DikeToeAtRiver,
         
         /// <remarks/>
-        ShoulderTopOutside,
-        
-        /// <remarks/>
-        ShoulderBaseOutside,
-        
-        /// <remarks/>
         DikeTopAtRiver,
         
         /// <remarks/>
-        DikeLine,
-        
-        /// <remarks/>
-        TrafficLoadOutside,
-        
-        /// <remarks/>
-        TrafficLoadInside,
-        
-        /// <remarks/>
         DikeTopAtPolder,
         
         /// <remarks/>
-        ShoulderBaseInside,
-        
-        /// <remarks/>
-        ShoulderTopInside,
-        
-        /// <remarks/>
         DikeToeAtPolder,
         
         /// <remarks/>
-        DitchDikeSide,
-        
-        /// <remarks/>
-        BottomDitchDikeSide,
-        
-        /// <remarks/>
-        BottomDitchPolderSide,
-        
-        /// <remarks/>
-        DitchPolderSide,
-        
-        /// <remarks/>
         SurfaceLevelInside,
     }