diff --git a/OpenAPI/TS28561_NdtNrm.yaml b/OpenAPI/TS28561_NdtNrm.yaml
index 822b721e7e0a353667dc3f4d7b1e96dbbfcacaa0..2b46a0431bf6ff5768d844bf1b36ba316683f900 100644
--- a/OpenAPI/TS28561_NdtNrm.yaml
+++ b/OpenAPI/TS28561_NdtNrm.yaml
@@ -108,15 +108,13 @@ components:
       properties:
         nDTInputDescriptionId:
           type: string
-        simulationData:
+        simulationDataDescriptor:
           type: array
           uniqueItems: true
           items:
-            $ref: 'TS28623_ComDefs.yaml#/components/schemas/AttributeNameValuePairSet'
+            $ref: '#/components/schemas/SimulationDataDescriptor'
         networkEventInfo:
           type: string
-        condition:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
     NDTOutputDescription:  
       type: object
       properties:
@@ -168,6 +166,43 @@ components:
           uniqueItems: true
           items:
             $ref: '#/components/schemas/NDTOutputDescription'
+    SimulationDataDescriptor:  
+      type: object
+      properties:
+        simulationData:
+          type: array
+          uniqueItems: true
+          items:
+            $ref: '#/components/schemas/SimulationData'
+        condition:
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
+    SimulationData:  
+      type: object
+      properties:
+        performanceData:
+          type: array
+          uniqueItems: true
+          items:
+            $ref: '#/components/schemas/PerformanceData'
+        mDTData:
+          type: array
+          uniqueItems: true
+          items:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/AttributeNameValuePairSet'
+        configurationData:
+          type: array
+          uniqueItems: true
+          items:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/AttributeNameValuePairSet'
+    PerformanceData:  
+      type: object
+      properties:
+        performanceDataName:
+          type: string
+        performanceDataValue:
+          type: integer
+        performanceDataScalingFactor:
+          type: integer
 
   #------Definition of JSON arrays for name-contained IOCs ---------------#