diff --git a/OpenAPI/TS28623_GenericNrm.yaml b/OpenAPI/TS28623_GenericNrm.yaml
index 89d1d35e8052cbcb194a4103d78398aedb8f89fb..3aa14f00fbc8988d715dffd4bdb163c083247b18 100755
--- a/OpenAPI/TS28623_GenericNrm.yaml
+++ b/OpenAPI/TS28623_GenericNrm.yaml
@@ -16,7 +16,9 @@ components:
 #-------- Definition of types-----------------------------------------------------
 
 
-    VnfParameter:
+    VnfParameters:
+      description: ->
+        This <<dataType>> represents the parameter set of the VNF instance(s) corresponding to an NE.
       type: object
       properties:
         vnfInstanceId:
@@ -27,13 +29,14 @@ components:
           type: string
         autoScalable:
           type: boolean
-    PeeParameter:
+          default: FALSE
+    PeeParameters:
+      description: ->
+        This <<dataType>> represents the parameter list for the control and monitoring of power, energy and environmental parameters.
       type: object
       properties:
         siteIdentification:
           type: string
-        siteDescription:
-          type: string
         siteLatitude:
           $ref: 'TS28623_ComDefs.yaml#/components/schemas/Latitude'
         siteLongitude:
@@ -41,13 +44,14 @@ components:
         siteAltitude:
           type: number
           format: float
+        siteDescription:
+          type: string  
         equipmentType:
           type: string
         environmentType:
           type: string
         powerInterface:
           type: string
-
     TransportProtocol:
       anyOf:
         - type: string
@@ -414,12 +418,12 @@ components:
           type: array
           uniqueItems: true
           items:
-            $ref: '#/components/schemas/VnfParameter'
+            $ref: '#/components/schemas/VnfParameters'
         peeParametersList:
           type: array
           uniqueItems: true
           items:
-            $ref: '#/components/schemas/PeeParameter'
+            $ref: '#/components/schemas/PeeParameters'
         priorityLabel:
           type: integer
         supportedPerfMetricGroups: