diff --git a/OpenAPI/TS28541_SliceNrm.yaml b/OpenAPI/TS28541_SliceNrm.yaml
index 8ab416830be0ecde300a184ef4832e781565b26c..20b2ebd37fabab5b961a8b8ed49034540875af1b 100755
--- a/OpenAPI/TS28541_SliceNrm.yaml
+++ b/OpenAPI/TS28541_SliceNrm.yaml
@@ -23,25 +23,25 @@ components:
       enum:
         - STATIONARY
         - NOMADIC
-        - RESTRICTED MOBILITY
-        - FULLY MOBILITY
+        - RESTRICTED_MOBILITY
+        - FULL_MOBILITY
     SynAvailability:
       type: string
       enum:
-        - NOT SUPPORTED
-        - BETWEEN BS AND UE
-        - BETWEEN BS AND UE & UE AND UE
+        - NOT_SUPPORTED
+        - BETWEEN_BS_AND_UE
+        - BETWEEN_BS_AND_UE_AND_UE_AND_UE
     PositioningAvailability:
       type: array
       items:
         type: string
         enum:
-          - CIDE-CID
+          - CIDE_CID
           - OTDOA
-          - RF FINGERPRINTING
+          - RF_FINGERPRINTING
           - AECID
-          - HYBRID POSITIONING
-          - NET-RTK
+          - HYBRID_POSITIONING
+          - NET_RTK
     PredictionFrequency:
       type: string
       enum:
@@ -52,22 +52,18 @@ components:
       type: string
       enum:
         - SHARED
-        - NON-SHARED
+        - NON_SHARED
 
     NetworkSliceSharingIndicator:
       type: string
       enum:
         - SHARED
-        - NON-SHARED
+        - NON_SHARED
 
     SliceSimultaneousUse:
-      type: string
-      enum:
-        - ZERO
-        - ONE
-        - TWO
-        - THREE
-        - FOUR
+      type: integer
+      minimum: 0
+      maximum: 4
     Category:
       type: string
       enum:
@@ -98,7 +94,7 @@ components:
     Support:
       type: string
       enum:
-        - NOT SUPPORTED
+        - NOT_SUPPORTED
         - SUPPORTED
     DelayTolerance:
       type: object
@@ -576,7 +572,7 @@ components:
            enum: 
             - VLAN
             - MPLS
-            - Segment
+            - SEGMENT
          logicalInterfaceId:
            type: string
          systemName:
@@ -592,7 +588,7 @@ components:
             - EGP
             - EIGRP
             - BGP
-            - IS-IS
+            - IS_IS
             - STATIC
 
     ConnectionPointInfo: