diff --git a/OpenAPI/TS28561_NdtNrm.yaml b/OpenAPI/TS28561_NdtNrm.yaml
index 1dc4124404db869177c31c3482cb2227a2b3b085..cb53a407ad1c64d835e6bcd2a85c1ddf11c39fde 100644
--- a/OpenAPI/TS28561_NdtNrm.yaml
+++ b/OpenAPI/TS28561_NdtNrm.yaml
@@ -62,6 +62,8 @@ components:
             $ref: '#/components/schemas/NDTInputDescription'
           nDTJobExecutionRequirements:
             $ref: '#/components/schemas/NdtJobExecutionReqts'
+          reportingMethod:
+            $ref: '#/components/schemas/ReportingMethod'    
           ndtDataGeneration:
             $ref: '#/components/schemas/DataGeneration'
           collaboratingNDT:
@@ -223,6 +225,11 @@ components:
         performanceDataScalingFactor:
           type: integer
           maxItems: 1
+    ReportingMethod:
+      type: string
+      enum:
+        - STREAMING
+        - NOTIFICATION  
     DataGeneration:  
       type: object
       properties:
@@ -251,8 +258,6 @@ components:
         dataGenPeriod:
           type: integer
 
-
-
   #------Definition of JSON arrays for name-contained IOCs ---------------#
 
     NDTJob-Multiple: