diff --git a/OpenAPI/TS28541_5GcNrm.yaml b/OpenAPI/TS28541_5GcNrm.yaml
index 70e59d659790faf683a9953dae0d8f722d61f2de..c76ca2d7eef966aee24ac4f12590bd0d7e2532e8 100755
--- a/OpenAPI/TS28541_5GcNrm.yaml
+++ b/OpenAPI/TS28541_5GcNrm.yaml
@@ -127,10 +127,10 @@ components:
     CNSIIdList:
       type: array
       items:
-        $ref: '#/components/schemas/CNSIId'
+        $ref: '#/components/schemas/CNSIId'     
     CNSIId:
       type: string
-      description: CNSI Id is defined in TS 29.531, only for Core Network
+      description: CNSI Id is defined in TS 29.531, only for Core Network.    
     EnergySavingControl:
       type: string
       description: any of enumerated value
@@ -139,6 +139,7 @@ components:
         - TO_BE_NOT_ENERGYSAVING
     EnergySavingState:
       type: string
+      readOnly: true
       description: any of enumerated value
       enum:
         - IS_NOT_ENERGYSAVING
@@ -158,6 +159,7 @@ components:
       properties:
         nFSrvGroupId:
           type: string
+          readOnly: true
         supiRanges:
           type: array
           items:
@@ -196,6 +198,7 @@ components:
         - P_NSSCD
     NotificationType:      
       type: string
+      readOnly: true
       enum:
         -  N1_MESSAGES 
         -  N2_INFORMATION
@@ -212,14 +215,19 @@ components:
           $ref: '#/components/schemas/NotificationType'
         callbackURI:
           type: string
+          readOnly: true
         n1MessageClass:  
           type: boolean
+          readOnly: true
         n2InformationClass:
           type: boolean
+          readOnly: true
         versions:
           type: string
+          readOnly: true
         binding:
           type: string
+          readOnly: true
     ManagedNFProfile:
       type: object
       properties:
@@ -229,6 +237,7 @@ components:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/Fqdn'
         nfInstanceID:
           type: string
+          readOnly: true
         nfType:
           $ref: '#/components/schemas/NFType'
         heartbeatTimer:
@@ -275,20 +284,23 @@ components:
             type: string
         lcHSupportInd:
           type: boolean
+          readOnly: true
         olcHSupportInd:
           type: boolean
+          readOnly: true
         nfSetRecoveryTimeList:
           type: array
           items:
-            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
         scpDomains:
           type: array
           items:
             type: string
         recoveryTime:
-           $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+           $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
         nfServicePersistence:
            type: boolean
+           readOnly: true
         nfProfileChangesSupportInd:
            type: boolean
         defaultNotificationSubscriptions:
@@ -299,12 +311,13 @@ components:
         serviceSetRecoveryTimeList:
           type: array
           items:
-            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
           minItems: 1
         vendorId:
           $ref: '#/components/schemas/VendorId'
     SEPPType:
       type: string
+      readOnly: true
       description: any of enumerated value
       enum:
         - CSEPP
@@ -562,6 +575,7 @@ components:
           type: integer
         eACMode:
           type: string
+          readOnly: true
           enum:
             - INACTIVE
             - ACTIVE
@@ -571,10 +585,12 @@ components:
           type: integer
         numberofUEs:
           type: integer
+          readOnly: true
         uEIdList:
           type: array
           items:
             type: string
+          readOnly: true  
         maxNumberofPDUSessions:
           type: integer
      
@@ -587,7 +603,7 @@ components:
           type: string
         nRTACpattern:
           type: string
-  
+          
     TaiRange:
       type: object
       properties:
@@ -597,7 +613,7 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/NRTACRange'
-   
+
     GUAMInfo:
       type: object
       properties:
@@ -659,22 +675,25 @@ components:
       properties:
         5GCNFType:
           type: string
+          readOnly: true
           enum:
             - PCF
             - NEF
             - SCEF
         5GCNFIpAddress:
           type: string
+          readOnly: true
         5GCNFRef:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
 
     UPFConnectionInfo:
       type: object
       properties:
         uPFIpAddress:
           type: string
+          readOnly: true
         uPFRef:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
     SnssaiList:
       type: array
       items:
@@ -691,7 +710,7 @@ components:
     TaiList:
       type: array
       items:
-        $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Tai' 
+        $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Tai'        
     SupiRange:
       type: object
       properties:
@@ -1144,11 +1163,13 @@ components:
           items:
             type: string
           minItems: 1
+          readOnly: true
         afIds:
           type: array
           items:
             type: string
           minItems: 1
+          readOnly: true
     AfEvent:
       description: Represents Application Events.
       anyOf:
@@ -1170,7 +1191,7 @@ components:
       - type: string
         description: >
           This string provides forward-compatibility with future extensions to the enumeration but
-          is not used to encode content defined in the present version of this API.
+          is not used to encode content defined in the present version of this API.       
     AfEventExposureData:
       description: AF Event Exposure data managed by a given NEF Instance
       type: object
@@ -1187,11 +1208,13 @@ components:
           items:
             type: string
           minItems: 1
+          readOnly: true
         appIds:
           type: array
           items:
             type: string
           minItems: 1
+          readOnly: true
     UnTrustAfInfo:
       description: Information of a untrusted AF Instance
       type: object
@@ -1735,8 +1758,10 @@ components:
         iwkEpsInd:
           type: boolean
           default: false
+          readOnly: true
         sxaInd:
           type: boolean
+          readOnly: true
         pduSessionTypes:
           type: array
           items:
@@ -1747,6 +1772,7 @@ components:
         ueIpAddrInd:
           type: boolean
           default: false
+          readOnly: true
         taiList:
           type: array
           items:
@@ -1773,6 +1799,7 @@ components:
         redundantGtpu:
           type: boolean
           default: false
+          readOnly: true
         ipups:
           type: boolean
           default: false
@@ -1781,6 +1808,7 @@ components:
           default: false
         supportedPfcpFeatures:
           type: string
+          readOnly: true
         # upfEvents:
           # type: array
           # items:
@@ -1815,9 +1843,11 @@ components:
         v2xSupportInd:
           type: boolean
           default: false
+          readOnly: true
         proseSupportInd:
           type: boolean
           default: false
+          readOnly: true
         proseCapability:
           $ref: '#/components/schemas/ProseCapability'
         v2xCapability:
@@ -1825,11 +1855,13 @@ components:
         a2xSupportInd:
           type: boolean
           default: false
+          readOnly: true
         a2xCapability:
           $ref: '#/components/schemas/A2xCapability'          
         rangingSlPosSupportInd:
           type: boolean
-          default: false                    
+          default: false
+          readOnly: true                    
 
     A2xCapability:
       description: Information of the supported A2X Capability by the PCF
@@ -2878,7 +2910,7 @@ components:
         pLMNInfo:
           $ref: 'TS28541_NrNrm.yaml#/components/schemas/PlmnInfo'
         expiryTime:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'        
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'        
     PcscfInfo:
       description: Information of a P-CSCF NF Instance
       type: object
@@ -2950,18 +2982,20 @@ components:
         - NSMF_PDUSESSION
         - NSMF_EVENTEXPOSURE
         - OTHERS
+      readOnly: true      
     Operation:
       type: object
       properties:
         name:
           type: string
+          readOnly: true
         allowedNFTypes:
           $ref: '#/components/schemas/NFType'
         operationSemantics:
           $ref: '#/components/schemas/OperationSemantics'
     NFType:
+      description: NF name defined in TS 23.501 or TS 29.510'.This datatype is used for writable attribute
       type: string
-      description: ' NF name defined in TS 23.501 or TS 29.510'
       enum:
         - NRF
         - UDM
@@ -3027,11 +3061,13 @@ components:
 
     OperationSemantics:
       type: string
+      readOnly: true
       enum:
         - REQUEST_RESPONSE
         - SUBSCRIBE_NOTIFY
     RegistrationState:
       type: string
+      readOnly: true
       enum:
         - REGISTERED
         - DEREGISTERED
@@ -3282,7 +3318,7 @@ components:
                     configurable5QISetRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
                     dynamic5QISetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                     dnaiSatelliteMappingList:
                       type: array
                       items:
@@ -3409,7 +3445,7 @@ components:
                     configurable5QISetRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
                     dynamic5QISetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                     predefinedPccRuleSetRefs:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'  
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
@@ -3696,11 +3732,12 @@ components:
                 - type: object
                   properties:
                     plmnId:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/PlmnId'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/PlmnIdRo'
                     sEPPType:
                       $ref: '#/components/schemas/SEPPType'
                     sEPPId:
                       type: integer
+                      readOnly: true
                     fqdn:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Fqdn'
                     seppInfo:
@@ -3739,6 +3776,7 @@ components:
                       $ref: '#/components/schemas/NwdafInfo'
                     nwdafLogicalFuncSupported:
                       type: string
+                      readOnly: true
                       enum:
                         - NWDAF_WITH_ANLF
                         - NWDAF_WITH_MTLF
@@ -3795,6 +3833,7 @@ components:
                       $ref: '#/components/schemas/CapabilityList'
                     isCAPIFSup:
                       type: boolean
+                      readOnly: true
                     nefInfo:
                        $ref: '#/components/schemas/NefInfo' 
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
@@ -3985,11 +4024,12 @@ components:
                 - type: object
                   properties:
                     plmnId:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/PlmnId'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/PlmnIdRo'
                     sEPPId:
                       type: integer
+                      readOnly: true
                     fqdn:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Fqdn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/FqdnRo'
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
         - $ref: '#/components/schemas/ManagedFunction5GC-nc0'   
     EP_N2-Single:
@@ -4021,7 +4061,7 @@ components:
                     remoteAddress:
                       $ref: 'TS28541_NrNrm.yaml#/components/schemas/RemoteAddress'
                     epTransportRefs:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
     EP_N4-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
@@ -4675,10 +4715,13 @@ components:
                         maximum: 255
                     isEventTriggeredGtpUPathMonitoringSupported:
                       type: boolean
+                      readOnly: true
                     isPeriodicGtpUMonitoringSupported:
                       type: boolean
+                      readOnly: true
                     isImmediateGtpUMonitoringSupported:
                       type: boolean
+                      readOnly: true
                     gtpUPathDelayThresholds:
                       $ref: '#/components/schemas/GtpUPathDelayThresholdsType'
                     gtpUPathMinimumWaitTime:
@@ -4712,10 +4755,13 @@ components:
                         maximum: 255
                     isEventTriggeredQFMonitoringSupported:
                       type: boolean
+                      readOnly: true
                     isPeriodicQFMonitoringSupported:
                       type: boolean
+                      readOnly: true
                     isSessionReleasedQFMonitoringSupported:
                       type: boolean
+                      readOnly: true
                     qFPacketDelayThresholds:
                       $ref: '#/components/schemas/QFPacketDelayThresholdsType'
                     qFMinimumWaitTime:
@@ -5418,6 +5464,7 @@ components:
                       enum:
                         - ACTIVATED
                         - DEACTIVATED
+                      readOnly: true  
     EP_SM12-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
diff --git a/OpenAPI/TS28541_NrNrm.yaml b/OpenAPI/TS28541_NrNrm.yaml
index 6beabfa522227229dc01330a724d04b5af27e0d1..10fe7cd2d4c98c67ee3d5a7de0ba6bac8af3b349 100755
--- a/OpenAPI/TS28541_NrNrm.yaml
+++ b/OpenAPI/TS28541_NrNrm.yaml
@@ -34,6 +34,7 @@ components:
       type: integer
       minimum: 0
       maximum: 68719476735
+      readOnly: true
 
     Sst:
       type: integer
@@ -98,7 +99,7 @@ components:
     TaiList:
       type: array
       items:
-        $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Tai' 
+        $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Tai'         
     BackhaulAddress:
       type: object
       properties:
@@ -234,6 +235,7 @@ components:
         - IDLE
         - INACTIVE
         - ACTIVE
+      readOnly: true  
     CyclicPrefix:
       type: string
       enum:
@@ -835,7 +837,7 @@ components:
                     configurable5QISetRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
                     dynamic5QISetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
         - type: object
           properties:
@@ -882,7 +884,7 @@ components:
               $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
             dynamic5QISetRef:
               description: This attribute is condition optional. The condition is NG-RAN Multi-Operator Core Network (NG-RAN MOCN) network sharing with operator specific 5QI is supported.            
-              $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+              $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
             NrOperatorCellDu:
               $ref: '#/components/schemas/NrOperatorCellDu-Multiple'              
     GnbCuUpFunction-Single:
@@ -906,7 +908,7 @@ components:
                     configurable5QISetRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
                     dynamic5QISetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
         - type: object
           properties:
@@ -966,9 +968,9 @@ components:
                     configurable5QISetRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
                     dynamic5QISetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                     ephemerisInfoSetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                     dCHOControl:
                       type: boolean
                     dDAPSHOControl:
@@ -1028,7 +1030,7 @@ components:
                     plmnInfoList:
                       $ref: '#/components/schemas/PlmnInfoList'
                     nRFrequencyRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ManagedFunction-ncO'
         - type: object
           properties:
@@ -1191,6 +1193,7 @@ components:
                     type: integer
                     minimum: 1
                     maximum: 256
+                    readOnly: true
     EUtranFrequency-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
@@ -1290,24 +1293,30 @@ components:
                   properties:
                     beamIndex:
                       type: integer
+                      readOnly: true  
                     beamType:
                       type: string
+                      readOnly: true
                       enum:
-                        - SSB_BEAM
+                        - SSB_BEAM  
                     beamAzimuth:
                       type: integer
+                      readOnly: true
                       minimum: -1800
                       maximum: 1800
                     beamTilt:
                       type: integer
+                      readOnly: true
                       minimum: -900
                       maximum: 900
                     beamHorizWidth:
                       type: integer
+                      readOnly: true
                       minimum: 0
                       maximum: 3599
                     beamVertWidth:
                       type: integer
+                      readOnly: true
                       minimum: 0
                       maximum: 1800
     RRMPolicyRatio-Single:
@@ -1540,18 +1549,20 @@ components:
                       $ref: "#/components/schemas/InterRatEsDeactivationCandidateCellParameters"
                     isProbingCapable:
                       type: string
+                      readOnly: true
                       enum:
                          - YES
                          - NO
                     energySavingState:
                       type: string
+                      readOnly: true
                       enum:
                          - IS_NOT_ENERGY_SAVING
                          - IS_ENERGY_SAVING
                     mLModelRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     aIMLInferenceFunctionRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'                        
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'                        
     DRACHOptimizationFunction-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
@@ -1586,9 +1597,9 @@ components:
                     tstoreUEcntxt:
                       $ref: '#/components/schemas/TstoreUEcntxt'
                     mLModelRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     aIMLInferenceFunctionRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'                       
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'                       
     DLBOFunction-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
@@ -1604,9 +1615,9 @@ components:
                     minimumTimeBetweenHoTriggerChange:
                           $ref: '#/components/schemas/MinimumTimeBetweenHoTriggerChange'
                     mLModelRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     aIMLInferenceFunctionRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'                        
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'                        
     DPCIConfigurationFunction-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
@@ -1698,7 +1709,7 @@ components:
                 setType:
                   $ref: '#/components/schemas/RSSetType'
                 nRCellDURefs:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
 
     ExternalGnbDuFunction-Single:
       allOf:
@@ -1941,7 +1952,7 @@ components:
                     remoteAddress:
                       $ref: '#/components/schemas/RemoteAddress'
                     epTransportRefs:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
 
     EP_NgU-Single:
       allOf:
@@ -1958,7 +1969,7 @@ components:
                     remoteAddress:
                       $ref: '#/components/schemas/RemoteAddress'
                     epTransportRefs:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
 
     EP_X2U-Single:
       allOf:
diff --git a/OpenAPI/TS28541_SliceNrm.yaml b/OpenAPI/TS28541_SliceNrm.yaml
index 121dc8f67f4d2c3a97d27200e1c9a19d54ea757b..11f8a7c285342f83db07f2d1efe9b777fbb058b5 100755
--- a/OpenAPI/TS28541_SliceNrm.yaml
+++ b/OpenAPI/TS28541_SliceNrm.yaml
@@ -31,6 +31,7 @@ components:
         - NOT_SUPPORTED
         - BETWEEN_BS_AND_UE
         - BETWEEN_BS_AND_UE_AND_UE_AND_UE
+      readOnly: true  
     PositioningAvailability:
       type: array
       items:
@@ -42,6 +43,7 @@ components:
           - AECID
           - HYBRID_POSITIONING
           - NET_RTK
+        readOnly: true  
     PredictionFrequency:
       type: string
       enum:
@@ -69,14 +71,17 @@ components:
       enum:
         - CHARACTER
         - SCALABILITY
+      readOnly: true  
     Tagging:
       type: array
+      readOnly: true
       items:
         type: string
         enum:
           - PERFORMANCE
           - FUNCTION
           - OPERATION
+        readOnly: true  
     Exposure:
       type: string
       enum:
@@ -96,6 +101,7 @@ components:
       enum:
         - NOT_SUPPORTED
         - SUPPORTED
+      readOnly: true  
     DelayTolerance:
       type: object
       properties:
@@ -127,9 +133,9 @@ components:
         servAttrCom:
           $ref: '#/components/schemas/ServAttrCom'
         guaThpt:
-          $ref: '#/components/schemas/Float'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/FloatRo'
         maxThpt:
-          $ref: '#/components/schemas/Float'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/FloatRo'
     MaxPktSize:
       type: object
       properties:
@@ -144,6 +150,7 @@ components:
           $ref: '#/components/schemas/ServAttrCom'
         nOofPDUSessions:
           type: integer
+          readOnly: true
     KPIMonitoring:
       type: object
       properties:
@@ -153,6 +160,7 @@ components:
           type: array
           items:
             type: string
+          readOnly: true  
     NBIoT:
       type: object
       properties:
@@ -210,13 +218,16 @@ components:
           $ref: '#/components/schemas/ServAttrCom'
         density:
           type: integer
+          readOnly: true
     NsInfo:
       type: object
       properties:
         nsInstanceId:
           type: string
+          readOnly: true
         nsName:
           type: string
+          readOnly: true
         description:
           type: string
     EmbbEEPerfReq:
@@ -273,12 +284,14 @@ components:
       properties:
         secFunId:
           type: string
+          readOnly: true
         secFunType:
           type: string
         secRules:
           type: array
           items:
             type: string
+          readOnly: true  
     N6Protection:
       type: object
       properties:
@@ -578,6 +591,7 @@ components:
       properties:
           serviceProfileId: 
             type: string
+            readOnly: true
           plmnInfoList:
             $ref: 'TS28541_NrNrm.yaml#/components/schemas/PlmnInfoList'
           maxNumberofUEs:
@@ -674,6 +688,7 @@ components:
       properties:
           sliceProfileId: 
             type: string
+            readOnly: true
           plmnInfoList:
             $ref: 'TS28541_NrNrm.yaml#/components/schemas/PlmnInfoList'
           cNSliceSubnetProfile:
@@ -682,11 +697,6 @@ components:
             $ref: '#/components/schemas/RANSliceSubnetProfile'
           topSliceSubnetProfile:
             $ref: '#/components/schemas/TopSliceSubnetProfile'
-
-    IpAddress:
-      oneOf:
-        - $ref: 'TS28623_ComDefs.yaml#/components/schemas/Ipv4Addr'
-        - $ref: 'TS28623_ComDefs.yaml#/components/schemas/Ipv6Addr'
     
     LogicalInterfaceInfo:
       type: object
@@ -746,10 +756,12 @@ components:
       enum:
         - FEASIBLE
         - INFEASIBLE
+      readOnly: true  
     InFeasibleReason:
       description: >-
         An attribute that specifies the additional reason information if the feasibility check result is infeasible.The detailed ENUM value is FFS. 
       type: string
+      readOnly: true
     RecommendationRequest:
       description: >-
         An attribute represents MnS consumer's request for recommended network slice related requirements.
@@ -758,6 +770,7 @@ components:
       description: >-
         An attribute that specifies the recommended network slicing related requirements (i.e. ServiceProfile and SliceProfile information) which can be supported by the MnS producer.. 
       type: string
+      readOnly: true
     ResourceReservation:
       description: >-
         An attribute represents MnS consumer's requirements for resource reservation.
@@ -774,6 +787,7 @@ components:
         - RESERVED
         - UNRESERVED
         - USED
+      readOnly: true  
     ReservationExpiration:
       description: >-
         An attribute which specifies the actual validity period of the resource reservation..
@@ -782,7 +796,7 @@ components:
       description: >-
         An attribute that specifies the additional reason information if the reservation is failed. 
       type: string
-
+      readOnly: true
     ResourceIsolationRule:
       type: object
       properties:
@@ -836,7 +850,7 @@ components:
                 - type: object
                   properties:
                     networkSliceSubnetRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                     operationalState:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/OperationalState'
                     administrativeState:
@@ -844,7 +858,7 @@ components:
                     serviceProfileList:
                       $ref: '#/components/schemas/ServiceProfileList'
                     networkSliceControllerRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     isolationProfileRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
 
@@ -858,9 +872,9 @@ components:
                 - type: object
                   properties:
                     managedFunctionRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     networkSliceSubnetRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     operationalState:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/OperationalState'
                     administrativeState:
@@ -880,7 +894,7 @@ components:
                         - RAN_SLICESUBNET
                         - CN_SLICESUBNET
                     networkSliceSubnetControllerRef:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     isolationProfileRef:
                       $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
 
@@ -893,7 +907,7 @@ components:
               type: object
               properties:
                 ipAddress:
-                  $ref: '#/components/schemas/IpAddress'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/IpAddrRo'
                 localLogicalInterfaceInfo:
                   $ref: '#/components/schemas/LogicalInterfaceInfo'
                 qosProfile:
@@ -915,14 +929,16 @@ components:
               properties:
                 dLlatency: 
                   type: integer
+                  readOnly: true
                 uLlatency:
                   type: integer
+                  readOnly: true
                 dLThptPerSliceSubnet:
                   $ref: '#/components/schemas/XLThpt'
                 uLThptPerSliceSubnet:
                   $ref: '#/components/schemas/XLThpt'
                 coverageAreaTAList:
-                  $ref: 'TS28541_NrNrm.yaml#/components/schemas/TaiList'
+                  $ref: 'TS28541_5GcNrm.yaml#/components/schemas/TaiList'
     FeasibilityCheckAndReservationJob-Single:
       allOf:
         - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'     
@@ -971,6 +987,7 @@ components:
                   $ref: '#/components/schemas/ServiceProfile'
                 serviceProfileId: 
                   type: string
+                  readOnly: true
                 operationalState:
                   $ref: 'TS28623_ComDefs.yaml#/components/schemas/OperationalState'
                 administrativeState:
@@ -980,7 +997,7 @@ components:
                 processMonitor:
                   $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ProcessMonitor'
                 networkSliceRef:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
 
     NetworkSliceSubnetController-Single:
       allOf:
@@ -1003,7 +1020,7 @@ components:
                 processMonitor:
                   $ref: 'TS28623_GenericNrm.yaml#/components/schemas/ProcessMonitor'
                 networkSliceSubnetRef:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
 
     IsolationProfile-Single:
       allOf:
@@ -1021,9 +1038,9 @@ components:
                       items:
                         $ref: '#/components/schemas/ResourceIsolationRule'
                     networkSliceRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
                     networkSliceSubnetRefList:
-                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
+                      $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
 
 #-------- Definition of JSON arrays for name-contained IOCs ----------------------
 
diff --git a/OpenAPI/TS28623_ComDefs.yaml b/OpenAPI/TS28623_ComDefs.yaml
index 50ad665b59345454e0c906433d4c806920e74894..a4f2ba33fd8cdab898f0de8df57ccf95f1a21d9c 100755
--- a/OpenAPI/TS28623_ComDefs.yaml
+++ b/OpenAPI/TS28623_ComDefs.yaml
@@ -14,11 +14,23 @@ components:
   schemas:
   
     Float:
+      description: This datatype is used for writable attribute
       type: number
       format: float
+    FloatRo:
+      description: This datatype is used for readOnly attribute
+      type: number
+      format: float
+      readOnly: true      
     DateTime:
+      description: This datatype is used for writable attribute
+      type: string
+      format: date-time
+    DateTimeRo: 
+      description: This datatype is used for readOnly attribute
       type: string
       format: date-time
+      readOnly: true      
     FullTime:
       type: string
       description: format (e.g., full-time) is from RFC 3339
@@ -48,28 +60,60 @@ components:
       maximum: 180
 
     Dn:
+      description: This datatype is used for writable attribute
+      type: string
+    DnRo:
+      description: This datatype is used for readOnly attribute
       type: string
+      readOnly: true      
     DnList:
+      description: This datatype is used for writable attribute    
       type: array
       items:
         $ref: '#/components/schemas/Dn'
+    DnListRo:
+      description: This datatype is used for readOnly attribute    
+      type: array
+      items:
+        $ref: '#/components/schemas/DnRo'
 
     Mcc:
+      description: This datatype is used for writable attribut
+      type: string
+      pattern: '^[0-9]{3}$'
+    MccRo:
+      description: This datatype is used for readOnly attribute
       type: string
       pattern: '^[0-9]{3}$'
+      readOnly: true     
     Mnc:
+      description: This datatype is used for writable attribut
       type: string
       pattern: '^[0-9]{2,3}$'
+    MncRo:
+      description: This datatype is used for readOnly attribute
+      type: string
+      pattern: '^[0-9]{2,3}$'
+      readOnly: true      
     Nid:
       type: string
       pattern: '^[A-Fa-f0-9]{11}$'
     PlmnId:
+      description: This datatype is used for writable attribute
       type: object
       properties:
         mcc:
           $ref: '#/components/schemas/Mcc'
         mnc:
           $ref: '#/components/schemas/Mnc'
+    PlmnIdRo:
+      description: This datatype is used for readOnly attribute
+      type: object
+      properties:
+        mcc:
+          $ref: '#/components/schemas/MccRo'
+        mnc:
+          $ref: '#/components/schemas/MncRo'          
     Tac:
       type: string
       pattern: '(^[A-Fa-f0-9]{4}$)|(^[A-Fa-f0-9]{6}$)'
@@ -80,8 +124,9 @@ components:
       pattern: '^[A-Fa-f0-9]{7}$'
     NrCellId:
       type: string
-      pattern: '^[A-Fa-f0-9]{9}$'
+      pattern: '^[A-Fa-f0-9]{9}$'   
     TimeWindow:
+      description: This datatype is used for writable attribute
       oneOf:  
         - type: object
           properties:
@@ -96,7 +141,24 @@ components:
         - type: object
           properties:
             endTime:
-              $ref: '#/components/schemas/DateTime'
+              $ref: '#/components/schemas/DateTime'    
+    TimeWindowRo:
+      description: This datatype is used for readOnly attribute   
+      oneOf:
+        - type: object
+          properties:
+            startTime:
+              $ref: '#/components/schemas/DateTimeRo'
+            endTime:
+              $ref: '#/components/schemas/DateTimeRo'        
+        - type: object
+          properties:
+            startTime:
+              $ref: '#/components/schemas/DateTimeRo'
+        - type: object
+          properties:
+            endTime:
+              $ref: '#/components/schemas/DateTimeRo'   
     GeoCoordinate:
       type: object
       properties:
@@ -143,30 +205,71 @@ components:
 
     Fqdn:
       type: string
+      description: This datatype is used for writable attribute
+      pattern: '^([0-9A-Za-z]([-0-9A-Za-z]{0,61}[0-9A-Za-z])?\.)+[A-Za-z]{2,63}\.?$'
+      minLength: 4
+      maxLength: 253
+    FqdnRo:
+      type: string
+      description: This datatype is used for readOnly attribute
       pattern: '^([0-9A-Za-z]([-0-9A-Za-z]{0,61}[0-9A-Za-z])?\.)+[A-Za-z]{2,63}\.?$'
       minLength: 4
       maxLength: 253
+      readOnly: true
+
     Ipv4Addr:
+      description: This datatype is used for writable attribute
       type: string
       pattern: '^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$'
       example: '198.51.100.1'
+    Ipv4AddrRo:
+      description: This datatype is used for readOnly attribute
+      type: string
+      pattern: '^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$'
+      example: '198.51.100.1' 
+      readOnly: true     
     Ipv6Addr:
+      description: This datatype is used for writable attribute
       type: string
       allOf:
         - pattern: '^((:|(0?|([1-9a-f][0-9a-f]{0,3}))):)((0?|([1-9a-f][0-9a-f]{0,3})):){0,6}(:|(0?|([1-9a-f][0-9a-f]{0,3})))$'
         - pattern: '^((([^:]+:){7}([^:]+))|((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?))$'
       example: '2001:db8:85a3::8a2e:370:7334'
+    Ipv6AddrRo:
+      description: This datatype is used for readOnly attribute
+      type: string
+      allOf:
+        - pattern: '^((:|(0?|([1-9a-f][0-9a-f]{0,3}))):)((0?|([1-9a-f][0-9a-f]{0,3})):){0,6}(:|(0?|([1-9a-f][0-9a-f]{0,3})))$'
+        - pattern: '^((([^:]+:){7}([^:]+))|((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?))$'
+      example: '2001:db8:85a3::8a2e:370:7334'
+      readOnly: true      
     Ipv6Prefix:
+      description: This datatype is used for writable attribute
       type: string
       allOf:
         - pattern: '^((:|(0?|([1-9a-f][0-9a-f]{0,3}))):)((0?|([1-9a-f][0-9a-f]{0,3})):){0,6}(:|(0?|([1-9a-f][0-9a-f]{0,3})))(\/(([0-9])|([0-9]{2})|(1[0-1][0-9])|(12[0-8])))$'
         - pattern: '^((([^:]+:){7}([^:]+))|((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?))(\/.+)$'
       example: '2001:db8:abcd:12::0/64'
+    Ipv6PrefixRo:
+      description: This datatype is used for readOnly attribute
+      type: string
+      allOf:
+        - pattern: '^((:|(0?|([1-9a-f][0-9a-f]{0,3}))):)((0?|([1-9a-f][0-9a-f]{0,3})):){0,6}(:|(0?|([1-9a-f][0-9a-f]{0,3})))(\/(([0-9])|([0-9]{2})|(1[0-1][0-9])|(12[0-8])))$'
+        - pattern: '^((([^:]+:){7}([^:]+))|((([^:]+:)*[^:]+)?::(([^:]+:)*[^:]+)?))(\/.+)$'
+      example: '2001:db8:abcd:12::0/64'
+      readOnly: true      
     IpAddr:
+      description: This datatype is used for writable attribute
       oneOf:
         - $ref: '#/components/schemas/Ipv4Addr'
         - $ref: '#/components/schemas/Ipv6Addr'
         - $ref: '#/components/schemas/Ipv6Prefix'
+    IpAddrRo:
+      description: This datatype is used for readOnly attribute
+      oneOf:
+        - $ref: '#/components/schemas/Ipv4AddrRo'
+        - $ref: '#/components/schemas/Ipv6AddrRo'
+        - $ref: '#/components/schemas/Ipv6PrefixRo'        
     HostAddr:
       #  This definition will be deprecated, when all occurances of HostAddr
       #  are replaced by Host.
@@ -179,7 +282,12 @@ components:
         - $ref: '#/components/schemas/IpAddr'
         - $ref: '#/components/schemas/Fqdn'
     Uri:
+      description: This datatype is used for writable attribute
+      type: string
+    UriRo:
       type: string
+      description: This datatype is used for readOnly attribute
+      readOnly: true      
 
     TimeInterval:
       type: object
@@ -205,9 +313,11 @@ components:
       enum:
         - ENABLED
         - DISABLED
-      default: DISABLED  
+      default: DISABLED
+      readOnly: true  
     UsageState:
       type: string
+      readOnly: true
       enum:
         - IDLE
         - ACTIVE
@@ -224,6 +334,7 @@ components:
         - DEGRADED
         - NOT_INSTALLED
         - LOG_FULL
+      readOnly: true  
 
     AttributeNameValuePairSet:
       description: >-
diff --git a/OpenAPI/TS28623_FileManagementNrm.yaml b/OpenAPI/TS28623_FileManagementNrm.yaml
index 9a2a45f33f387bcccba7ae4e327ad86a3920d4e5..e8710115cf1eadfbbf2ee46bb0e65ef155361e25 100644
--- a/OpenAPI/TS28623_FileManagementNrm.yaml
+++ b/OpenAPI/TS28623_FileManagementNrm.yaml
@@ -40,8 +40,10 @@ components:
       properties:
         jobId:
           type: string
+          readOnly: true
         status:
           type: string
+          readOnly: true
           enum:
             - NOT_STARTED
             - RUNNING
@@ -51,13 +53,16 @@ components:
             - CANCELLED
         progressPercentage:
           type: integer
+          readOnly: true
           minimum: 0
           maximum: 100
         progressStateInfo:
+          readOnly: true
           type: string
         resultStateInfo:
           oneOf:
             - type: string
+              readOnly: true
               enum:
                 - NULL
                 - UNKNOWN
@@ -69,10 +74,11 @@ components:
                 - TIMER_EXPIRED
                 - OTHER
             - type: string
+              readOnly: true
         startTime:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
         endTime:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
         timer:
           type: integer
 
@@ -109,10 +115,12 @@ components:
               properties:
                 numberOfFiles:
                   type: integer
+                  readOnly: true
                 jobRef:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                 jobId:
                   type: string
+                  readOnly: true
                 File:
                   $ref: '#/components/schemas/File-Multiple'
     File-Single:
@@ -124,13 +132,16 @@ components:
               type: object
               properties:
                 fileLocation:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/Uri'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/UriRo'
                 fileCompression:
                   type: string
+                  readOnly: true
                 fileSize:
                   type: integer
+                  readOnly: true
                 fileDataType:
                   type: string
+                  readOnly: true
                   enum:
                     - PERFORMANCE
                     - TRACE
@@ -138,16 +149,19 @@ components:
                     - PROPRIETARY
                 fileFormat:
                   type: string
+                  readOnly: true
                 fileReadyTime:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
                 fileExpirationTime:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
                 fileContent:
                   type: string
+                  readOnly: true
                 jobRef:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
                 jobId:
                   type: string
+                  readOnly: true
  
             
 
diff --git a/OpenAPI/TS28623_GenericNrm.yaml b/OpenAPI/TS28623_GenericNrm.yaml
index 272fa9fd345ea883f76f89fa5b5bcb67c902c64c..bb5a2d861aacfc6d0c70a2a73335c49bc6588cd1 100755
--- a/OpenAPI/TS28623_GenericNrm.yaml
+++ b/OpenAPI/TS28623_GenericNrm.yaml
@@ -61,11 +61,13 @@ components:
           type: array
           items:
             type: string
+          readOnly: true  
         granularityPeriods:
           type: array
           items:
             type: integer
             minimum: 1
+          readOnly: true  
         reportingMethods:
           type: array
           items:
@@ -73,12 +75,14 @@ components:
             enum:
              - FILE_BASED_LOC_SET_BY_PRODUCER
              - FILE_BASED_LOC_SET_BY_CONSUMER
-             - STREAM_BASED 
+             - STREAM_BASED
+            readOnly: true               
         reportingPeriods:
           type: array
           items:
             type: integer
             minimum: 1
+          readOnly: true  
     ReportingCtrl:
       oneOf:
         - type: object
@@ -108,6 +112,7 @@ components:
       properties:
         jobId:
           type: string
+          readOnly: true
         status:
           type: string
           enum:
@@ -118,18 +123,22 @@ components:
             - PARTIALLY_FAILED
             - CANCELLING
             - CANCELLED
+          readOnly: true            
         progressPercentage:
           type: integer
           minimum: 0
           maximum: 100
+          readOnly: true          
         progressStateInfo:
           type: string
+          readOnly: true
         resultStateInfo:
           type: string
+          readOnly: true
         startTime:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
         endTime:
-          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTime'
+          $ref: 'TS28623_ComDefs.yaml#/components/schemas/DateTimeRo'
         timer:
           type: integer
     AreaScope:
@@ -160,8 +169,8 @@ components:
         tac:
           $ref: '#/components/schemas/Tac'
     Tac:
-      type: string
-      pattern: '(^[A-Fa-f0-9]{4}$)|(^[A-Fa-f0-9]{6}$)'
+      type: string 
+      pattern: '(^[A-Fa-f0-9]{4}$)|(^[A-Fa-f0-9]{6}$)'   
     EutraCellId:
       type: string
       pattern: '^[A-Fa-f0-9]{7}$'
@@ -281,8 +290,10 @@ components:
           type: array
           items:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/Mcc'
+          readOnly: true  
         priorityLabel:
           type: integer
+          readOnly: true
         supportedPerfMetricGroups:
           type: array
           items:
@@ -308,10 +319,12 @@ components:
           $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
         vendorName:
           type: string
+          readOnly: true
         userDefinedState:
           type: string
         swVersion:
           type: string
+          readOnly: true
         priorityLabel:
           type: integer
         supportedPerfMetricGroups:
@@ -322,6 +335,7 @@ components:
           type: array
           items:
             type: string
+          readOnly: true  
 
     SubNetwork-ncO:
       type: object
@@ -393,6 +407,7 @@ components:
           type: string
         farEndEntity:
           type: string
+          readOnly: true
         supportedPerfMetricGroups:
           type: array
           items:
@@ -420,8 +435,10 @@ components:
           properties:
             vsDataType:
               type: string
+              readOnly: true
             vsDataFormatVersion:
               type: string
+              readOnly: true
             vsData:
               nullable: true
         VsDataContainer:
@@ -441,12 +458,15 @@ components:
                   $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
                 vendorName:
                   type: string
+                  readOnly: true
                 userDefinedState:
                   type: string
                 locationName:
                   type: string
+                  readOnly: true
                 swVersion:
                   type: string
+                  readOnly: true
             MnsAgent:
               $ref: '#/components/schemas/MnsAgent-Multiple'
     MnsAgent-Single:
@@ -458,7 +478,7 @@ components:
               type: object
               properties:
                 systemDN:
-                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
     MeContext-Single:
       allOf:
         - $ref: '#/components/schemas/Top'
@@ -469,6 +489,7 @@ components:
               properties:
                 dnPrefix:
                   type: string
+                  readOnly: true
     Scheduler-Single:
       allOf:
         - $ref: '#/components/schemas/Top'
@@ -484,6 +505,7 @@ components:
                   minItems: 1
                 schedulerStatus:
                   type: boolean
+                  readOnly: true
     ConditionMonitor-Single:
       allOf:
         - $ref: '#/components/schemas/Top'
@@ -496,6 +518,7 @@ components:
                   type: string
                 conditionStatus:
                   type: boolean
+                  readOnly: true
 
     SupportedNotifications-Single:
       allOf:
@@ -517,6 +540,7 @@ components:
                       - HTTP
                       - HTTP_VES_ENCAPS
                     minItems: 1
+                  readOnly: true  
 
 
     SubNetwork-Single:
diff --git a/OpenAPI/TS28623_MnSRegistryNrm.yaml b/OpenAPI/TS28623_MnSRegistryNrm.yaml
index cdfac7e173bae2b876ea49f95d44e03faf10f8c2..c72b9055f726c269ba1e0f7a40bedf40c2fd4b5b 100644
--- a/OpenAPI/TS28623_MnSRegistryNrm.yaml
+++ b/OpenAPI/TS28623_MnSRegistryNrm.yaml
@@ -39,8 +39,10 @@ components:
           properties:
              mnsLabel:
                type: string
+               readOnly: true
              mnsType:
                type: string
+               readOnly: true 
                enum:
                  - PROV_MNS
                  - FAULT_SUPERVISION_MNS
@@ -48,9 +50,10 @@ components:
                  - FILE_DATA_REPORTING_MNS
              mnsVersion:
                type: string
+               readOnly: true
              mnsAddress:
                description: Resource URI as defined in the relevant Technical Specification
-               $ref: 'TS28623_ComDefs.yaml#/components/schemas/Uri'
+               $ref: 'TS28623_ComDefs.yaml#/components/schemas/UriRo'
              mnsScope:
                description: >-
                  List of the managed object instances that can be accessed using the MnS.
@@ -59,7 +62,7 @@ components:
                  entities within the SubNetwork.
                type: array
                items:
-                 $ref: 'TS28623_ComDefs.yaml#/components/schemas/Dn'
+                 $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
 
 #-------- Definition of YAML arrays for name-contained IOCs ----------------------
 
diff --git a/OpenAPI/TS28623_QoEMeasurementCollectionNrm.yaml b/OpenAPI/TS28623_QoEMeasurementCollectionNrm.yaml
index 2869d78e7bb5254cdc3b651a624465132c0e69fe..91385822109f0b8814c4b4b30e359c9097335357 100644
--- a/OpenAPI/TS28623_QoEMeasurementCollectionNrm.yaml
+++ b/OpenAPI/TS28623_QoEMeasurementCollectionNrm.yaml
@@ -76,6 +76,7 @@ components:
                   maxItems: 2
                 mBSCommunicationServiceType:
                   type: string
+                  readOnly: true
                   enum:
                     - BROADCAST
                     - MULTICAST