diff --git a/OpenAPI/TS28312_IntentNrm.yaml b/OpenAPI/TS28312_IntentNrm.yaml
index 2bac76afe2be19ef5c285bdcc8753945d1dabce8..0ce0ea96de9ce35b10312d57b38b8e93feea433c 100644
--- a/OpenAPI/TS28312_IntentNrm.yaml
+++ b/OpenAPI/TS28312_IntentNrm.yaml
@@ -48,6 +48,8 @@ components:
             $ref: "#/components/schemas/IntentMgmtPurpose"
           contextSelectivity:
             $ref: "#/components/schemas/Selectivity"
+          consumerSatisfactionIndexThreshold:
+            type: integer
           expectationSelectivity:
             $ref: "#/components/schemas/Selectivity"
           intentContexts:
@@ -77,6 +79,8 @@ components:
             $ref: '#/components/schemas/IntentReportControl'
           intentReportReference:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
+          intentUtilityFormulaRef:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
     IntentReport-Single:
       description: It represents intent report information from MnS producer to MnS consumer. 
       allOf:
@@ -94,6 +98,8 @@ components:
             $ref: '#/components/schemas/IntentFeasibilityCheckReport'
           intentExplorationReport:
             $ref: '#/components/schemas/IntentExplorationReport'
+          intentUtilityReport:
+            $ref: '#/components/schemas/IntentUtilityReport'
           intentFulfilmentNegotiationReport:
             $ref: '#/components/schemas/IntentFulfilmentNegotiationReport'
           lastUpdatedTime:
@@ -114,11 +120,44 @@ components:
             minItems: 1
             items:
               $ref: '#/components/schemas/IntentHandlingCapability'
+          supportedExpectationTargetInfo:
+            type: array
+            items:
+              $ref: '#/components/schemas/SupportedExpectationTargetInfo'
+            uniqueItems: true
+            minItems: 1
           Intent:
             $ref: '#/components/schemas/Intent-Multiple'
           IntentReport:  
-            $ref: '#/components/schemas/IntentReport-Multiple'
-
+            $ref: '#/components/schemas/IntentReport-Multiple' 
+          supportedUtilityList:
+            type: array
+            items:
+              $ref: '#/components/schemas/UtilityDefinition'
+            uniqueItems: true   
+    IntentUtilityFormula-Single:
+      description: >- 
+       It represents an intent utility function instance.
+      allOf:
+      - $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Top'
+      - type: object
+        properties:
+          utilityFunctionId:
+            type: string
+            uniqueItems: true
+            minItems: 1
+          utilityParameterList:
+            type: array
+            items:
+              $ref: '#/components/schemas/UtilityParameter'
+            uniqueItems: true
+            minItems: 1
+          utilityScale:
+            type: number
+            minItems: 1
+          utilityOffset:
+            type: number
+            minItems: 1
    #-------Definition of generic IOCs ----------#  
 
    #-------Definition of the generic IntentExpectation dataType ----------#    
@@ -388,6 +427,7 @@ components:
             - INTENT_FULFILMENT_REPORT
             - INTENT_CONFLICT_REPORT
             - INTENT_FEASIBILITY_CHECK_REPORT
+            - INTENT_UTILITY_REPORT
         reportingConditions:
           description: >-
              It indicates the specified conditions for intent reporting.
@@ -527,6 +567,20 @@ components:
 
    #-------Definition of the concrete IntentConflictReport dataType----------------#
 
+
+#-------Definition of the generic IntentUtilityReport dataType----------------#
+    IntentUtilityReport:
+      description: >-
+        It represents the utility function results.         
+      type: object
+      properties:
+        utilityResultList:
+          type: array
+          uniqueItems: true
+          items:
+            $ref: '#/components/schemas/UtilityResult'
+   #-------Definition of the concrete IntentUtilityReport dataType----------------#
+
    #-------Definition of the generic IntentFeasibilityCheckReport dataType----------------#
     IntentFeasibilityCheckReport:
       description: >-
@@ -735,6 +789,51 @@ components:
             - $ref: '#/components/schemas/ValueRangeType'
    #-------Definition of the concrete IntentHandlingCapability dataType----------------#
 
+
+   #-------Definition of the generic UtilityParameter dataType----------------#
+    UtilityParameter:   
+      description: >-
+        It represents the inputs for the specified Intent Utility Function.
+      type: object
+      properties:
+        parameterName:
+          type: string
+        parameterWeight:
+          type: number
+   #-------Definition of the concrete UtilityParameter dataType----------------#
+
+   #-------Definition of the generic UtilityResult dataType----------------#
+    UtilityResult:   
+      description: >-
+        It represents the inputs for the specified Intent Utility Function.
+      type: object
+      properties:
+        utilityFunctionId:
+          type: string
+        utilityResult:
+          type: number
+   #-------Definition of the concrete UtilityResult dataType----------------#
+
+   #-------Definition of the generic UtilityDefinition dataType----------------#
+    UtilityDefinition:   
+      description: >-
+        It represents the inputs for the specified Intent Utility Function.
+      type: object
+      properties:
+        utilityDefinitionId:
+          type: string
+        utilityDescription:
+          type: string
+        utilityParameterList:
+          oneOf:
+            - type: array
+              uniqueItems: true
+              minItems: 1
+              items:
+                $ref: '#/components/schemas/UtilityParameter'
+            - $ref: '#/components/schemas/UtilityParameter'
+   #-------Definition of the concrete UtilityDefinition dataType----------------#
+
    #------Definition of JSON arrays for name-contained IOCs ---------------#
 
     Intent-Multiple:
@@ -752,6 +851,10 @@ components:
       items:
         $ref: '#/components/schemas/IntentHandlingFunction-Single'
 
+    IntentUtilityFormula-Multiple:
+      type: array
+      items:
+        $ref: '#/components/schemas/IntentUtilityFormula-Single'
 
    #------Definition of JSON arrays for name-contained IOCs ---------------#
    
@@ -760,6 +863,7 @@ components:
       oneOf:
        - $ref: '#/components/schemas/IntentHandlingFunction-Single'       
        - $ref: '#/components/schemas/Intent-Single'
-       - $ref: '#/components/schemas/IntentReport-Single'       
+       - $ref: '#/components/schemas/IntentReport-Single'  
+       - $ref: '#/components/schemas/IntentUtilityFormula-Single'
    #----- Definitions in TS 28.312 for TS 28.532 --------------------------#