diff --git a/NTO/MARS/Resource/attributes/class.ttl b/NTO/MARS/Resource/attributes/class.ttl
index 397a41b0e74..c681fdca4dd 100644
--- a/NTO/MARS/Resource/attributes/class.ttl
+++ b/NTO/MARS/Resource/attributes/class.ttl
@@ -13,6 +13,6 @@ ogit.MARS.Resource:class
 	dcterms:valid "start=2018-06-01;";
 	dcterms:creator "fotto@arago.de";
 	ogit:validation-type "fixed";
-	ogit:validation-parameter "Backend,Computation,ContentDelivery,CoreApplication,Database,Environment,Frontend,Infrastructure,Interface,Logistics,Middleware,Monitoring,PhysicalObject,Place,Process,Provider,Security,Service,Storage";
+	ogit:validation-parameter "Backend,Computation,ContentDelivery,CoreApplication,Database,Environment,Frontend,Infrastructure,Interface,Logistics,Middleware,Monitoring,PhysicalObject,Place,Process,Provider,Security,Service,Storage,Cluster";
 .
 
diff --git a/NTO/MARS/entities/Resource.ttl b/NTO/MARS/entities/Resource.ttl
index 3857b8bcdc3..8e8cb3adc60 100644
--- a/NTO/MARS/entities/Resource.ttl
+++ b/NTO/MARS/entities/Resource.ttl
@@ -29,25 +29,28 @@ ogit.MARS:Resource
 	ogit:parent ogit:Node;
 	ogit:mandatory-attributes (
 	    ogit:name				
-            ogit.MARS.Resource:class
+		ogit.MARS.Resource:class
 	);
 	ogit:optional-attributes (
-            ogit:url
+		ogit:url
 
-            ogit.Automation:automationState
-            ogit.Automation:lifecycle
-            ogit.Automation:serviceStatus
-            ogit.Automation:marsNodeType
+		ogit.Automation:automationState
+		ogit.Automation:lifecycle
+		ogit.Automation:serviceStatus
+		ogit.Automation:marsNodeType
 
-            ogit:tenantId
+		ogit:tenantId
+		ogit:lowerLimit
+		ogit:type
 	);
-        ogit:indexed-attributes (
-            ogit:name
+	ogit:indexed-attributes (
+		ogit:name
         );
 	ogit:allowed (
-			[ ogit:generates  ogit.Data:Log ]
-			[ ogit:generates  ogit:Timeseries ]
-			[ ogit:dependsOn  ogit.MARS:Software ]
-			[ ogit:uses  ogit.Automation:Configuration ]
+		[ ogit:generates  ogit.Data:Log ]
+		[ ogit:generates  ogit:Timeseries ]
+		[ ogit:dependsOn  ogit.MARS:Software ]
+		[ ogit:dependsOn  ogit.MARS:Resource ]
+		[ ogit:uses  ogit.Automation:Configuration ]
 	);
 .