Index: dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Interfaces/IKernelWrapper.cs
===================================================================
diff -u -r672 -r675
--- dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Interfaces/IKernelWrapper.cs	(.../IKernelWrapper.cs)	(revision 672)
+++ dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Interfaces/IKernelWrapper.cs	(.../IKernelWrapper.cs)	(revision 675)
@@ -27,21 +27,21 @@
         /// </summary>
         /// <param name="damKernelInput">The dam kernel input.</param>
         /// <param name="kernelDataInput">The kernel data input.</param>
-        /// <returns></returns>
+        /// <returns>Result of the prepare</returns>
         PrepareResult Prepare(DamKernelInput damKernelInput, out IKernelDataInput kernelDataInput);
         /// <summary>
         /// Validates the kernel data input.
         /// </summary>
         /// <param name="kernelDataInput">The kernel data input.</param>
         /// <param name="messages">The messages.</param>
-        /// <returns></returns>
+        /// <returns>Number of errors that prevent a calculation</returns>
         int Validate(IKernelDataInput kernelDataInput, out List<LogMessage> messages);
         /// <summary>
         /// Performs a failure mechanism calcualtion based on the input.
         /// </summary>
         /// <param name="kernelDataInput">The kernel data input.</param>
         /// <param name="messages">The messages.</param>
-        /// <returns></returns>
+        /// <returns>Kernel output object</returns>
         IKernelDataOutput Execute(IKernelDataInput kernelDataInput, out List<LogMessage> messages);
         /// <summary>
         /// Fills the dam result based on the kernel output.