Index: DamEngine/trunk/src/Deltares.DamEngine.Interface/EngineInterface.cs
===================================================================
diff -u -r1632 -r1640
--- DamEngine/trunk/src/Deltares.DamEngine.Interface/EngineInterface.cs	(.../EngineInterface.cs)	(revision 1632)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface/EngineInterface.cs	(.../EngineInterface.cs)	(revision 1640)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using Deltares.DamEngine.Calculators.DikesAssessmentRegional;
 using Deltares.DamEngine.Calculators.DikesDesign;
+using Deltares.DamEngine.Calculators.DikesOperational;
 using Deltares.DamEngine.Data.General;
 using Deltares.DamEngine.Data.Standard.Calculation;
 using Deltares.DamEngine.Data.Standard.Logging;
@@ -191,7 +192,9 @@
                     regionalScenariosCalculator.GetResults();
                     break;
                 case DamProjectType.Operational:
-                    throw new NotImplementedException();
+                    var operationalCalculator = new OperationalCalculator();
+                    operationalCalculator.Execute(DamProjectData);
+                    break;
                 case DamProjectType.Design:
                     DesignCalculator designCalculator = new DesignCalculator();
                     designCalculator.RegisterProgress(progressDelegate);