Update etsi_nfv_sol001_common_types.yaml, etsi_nfv_sol001_nsd_types.yaml,...

Update etsi_nfv_sol001_common_types.yaml, etsi_nfv_sol001_nsd_types.yaml, etsi_nfv_sol001_pnfd_types.yaml, etsi_nfv_sol001_vnfd_types.yaml files

etsi_nfv_sol001_common_types.yaml

-tosca_definitions_version: tosca_simple_yaml_1_2
-description: ETSI NFV SOL 001 common types definitions version 2.8.1
+tosca_definitions_version: tosca_simple_yaml_1_3
+description: ETSI NFV SOL 001 common types definitions version 3.3.1
 metadata:
   template_name: etsi_nfv_sol001_common_types
   template_author: ETSI_NFV
-  template_version: 2.8.1
+  template_version: 3.3.1
 
 data_types:
   tosca.datatypes.nfv.L2AddressData:
@@ -29,7 +29,7 @@ data_types:
         required: true
       ip_address_type:
         type: string
-        description: Defines address type. The address type should be aligned with the address type supported by the layer_protocols properties of the connection point
+        description: Defines address type. The address type should be aligned with the address type supported by the layer_protocols properties of the connetion point
         required: false
         constraints:
           - valid_values: [ ipv4, ipv6 ]
@@ -132,6 +132,12 @@ data_types:
         required: true
         constraints:
           - greater_or_equal: 0
+      service_availability_level:
+        type: integer
+        description: Specifies the service availability level for the VNF instance created from this profile.
+        required: false
+        constraints:
+          - greater_or_equal: 1
 
   tosca.datatypes.nfv.Qos:
     derived_from: tosca.datatypes.Root
@@ -273,3 +279,5 @@ policy_types:
           - greater_or_equal: 0
           - less_or_equal: 65535
         default: 65535
+
+

etsi_nfv_sol001_nsd_types.yaml

-tosca_definitions_version: tosca_simple_yaml_1_2
-description: ETSI NFV SOL 001 nsd types definitions version 2.8.1
+tosca_definitions_version: tosca_simple_yaml_1_3
+description: ETSI NFV SOL 001 nsd types definitions version 3.3.1
 metadata:
   template_name: etsi_nfv_sol001_nsd_types
   template_author: ETSI_NFV
-  template_version: 2.8.1
+  template_version: 3.3.1
 
 imports:
-     - https://forge.etsi.org/rep/nfv/SOL001/raw/v2.8.1/etsi_nfv_sol001_common_types.yaml
-     - https://forge.etsi.org/rep/nfv/SOL001/raw/v2.8.1/etsi_nfv_sol001_vnfd_types.yaml
-     - https://forge.etsi.org/rep/nfv/SOL001/raw/v2.8.1/etsi_nfv_sol001_pnfd_types.yaml
-     # editor's note: During the development of the SOL001ed281 GS, to enable this file to be verified by a TOSCA parser, the imports statement has to be replaced with a reference to a local copy of the common definitions YAML file
+     - https://forge.etsi.org/rep/nfv/SOL001/raw/v3.3.1/etsi_nfv_sol001_common_types.yaml
+     - https://forge.etsi.org/rep/nfv/SOL001/raw/v3.3.1/etsi_nfv_sol001_vnfd_types.yaml
+     - https://forge.etsi.org/rep/nfv/SOL001/raw/v3.3.1/etsi_nfv_sol001_pnfd_types.yaml
 
 
 data_types:
-  tosca.datatypes.nfv.ServiceAvailability:
-    derived_from: tosca.datatypes.Root
-    description: service availability 
-    properties:
-      level:
-        type: string
-        description: service availability levels
-        required: true
-        constraints:
-          - valid_values: [ level1, level2, level3 ]
-
   tosca.datatypes.nfv.NsVlProfile:
     derived_from: tosca.datatypes.Root
     description: Describes additional instantiation data for a given NsVirtualLink used in a specific NS deployment flavour.
@@ -40,10 +28,12 @@ data_types:
         type: tosca.datatypes.nfv.NsVirtualLinkQos
         description: Specifies the QoS requirements of a VL instantiated according to this profile.
         required: false
-      service_availability:
-        type: tosca.datatypes.nfv.ServiceAvailability
-        description: Network service virtual link service availability levels, as described in ETSI GS NFV-REL 001
+      service_availability_level:
+        type: integer
+        description: Specifies the service availability level for the VL instance created from this profile
         required: false 
+        constraints:
+          - greater_or_equal: 1
 
   tosca.datatypes.nfv.NsVirtualLinkQos:
     derived_from: tosca.datatypes.nfv.Qos
@@ -134,6 +124,7 @@ interface_types:
   tosca.interfaces.nfv.Nslcm:
     derived_from: tosca.interfaces.Root
     description: This interface encompasses a set of TOSCA operations corresponding to NS LCM operations defined in ETSI GS NFV-IFA 013. as well as to preamble and postamble procedures to the execution of the NS LCM operations.
+    operations:
       instantiate_start:
         description: Preamble to execution of the instantiate operation
       instantiate:
@@ -209,6 +200,12 @@ node_types:
         type: tosca.datatypes.nfv.NsProfile
         description: Specifies a profile of a NS, when this NS is used as nested NS within another NS.
         required: false
+      service_availability_level:
+        type: integer
+        description: Specifies the service availability level for the NS instance.
+        required: false
+        constraints:
+          - greater_or_equal: 1
     requirements:
       - virtual_link:
           capability: tosca.capabilities.nfv.VirtualLinkable
@@ -353,7 +350,7 @@ policy_types:
         description: Specifies the scope of the local affinity rule.
         required: true
         constraints:
-          - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop ]
+          - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop, network_link_and_node ]
     targets: [tosca.nodes.nfv.VNF, tosca.nodes.nfv.NsVirtualLink, tosca.nodes.nfv.NS, tosca.groups.nfv.NsPlacementGroup ]
 
   tosca.policies.nfv.NsAntiAffinityRule:
@@ -365,7 +362,7 @@ policy_types:
         description: Specifies the scope of the local affinity rule..
         required: true
         constraints:
-          - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop ]
+          - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop, network_link_and_node ]
     targets: [tosca.nodes.nfv.VNF, tosca.nodes.nfv.NsVirtualLink, tosca.nodes.nfv.NS, tosca.groups.nfv.NsPlacementGroup ]
 
   tosca.policies.nfv.NsSecurityGroupRule:
@@ -460,3 +457,4 @@ policy_types:
         constraints:
           - min_length: 1
     targets: [ tosca.nodes.nfv.VNF ]
+

etsi_nfv_sol001_pnfd_types.yaml

-tosca_definitions_version: tosca_simple_yaml_1_2
-description: ETSI NFV SOL 001 pnfd types definitions version 2.8.1
+tosca_definitions_version: tosca_simple_yaml_1_3
+description: ETSI NFV SOL 001 pnfd types definitions version 3.3.1
 metadata:
   template_name: etsi_nfv_sol001_pnfd_types
   template_author: ETSI_NFV
-  template_version: 2.8.1
+  template_version: 3.3.1
 
 imports:
-     - https://forge.etsi.org/rep/nfv/SOL001/raw/v2.8.1/etsi_nfv_sol001_common_types.yaml
-     # editor's note: During the development of the SOL001ed281 GS, to enable this file to be verified by a TOSCA parser, the imports statement has to be replaced with a reference to a local copy of the common definitions YAML file
-
+     - https://forge.etsi.org/rep/nfv/SOL001/raw/v3.3.1/etsi_nfv_sol001_common_types.yaml
 
 data_types:
   tosca.datatypes.nfv.LocationInfo:
@@ -45,7 +43,7 @@ data_types:
 
   tosca.datatypes.nfv.GeographicCoordinates:
     derived_from: tosca.datatypes.Root
-    description: Represents an element of a geographic coordinate location as specified in IETF RFC?6225 [21]. 
+    description: Represents an element of a geographic coordinate location as specified in IETF RFC?6225. 
     properties:
       latitude_uncertainty:
         type: string # RFC 6225
@@ -76,6 +74,8 @@ data_types:
         description: Altitude value as per RFC 6225
         required: true
 
+
+
 node_types:
   tosca.nodes.nfv.PNF:
     derived_from: tosca.nodes.Root

etsi_nfv_sol001_vnfd_types.yaml

-tosca_definitions_version: tosca_simple_yaml_1_2
-description: ETSI NFV SOL 001 vnfd types definitions version 2.8.1
+tosca_definitions_version: tosca_simple_yaml_1_3
+description: ETSI NFV SOL 001 vnfd types definitions version 3.3.1
 metadata:
   template_name: etsi_nfv_sol001_vnfd_types
   template_author: ETSI_NFV
-  template_version: 2.8.1
+  template_version: 3.3.1
 
 imports:
-   - https://forge.etsi.org/rep/nfv/SOL001/raw/v2.8.1/etsi_nfv_sol001_common_types.yaml
-   # editor's note: During the development of the SOL001ed281 GS, to enable this file to be verified by a TOSCA parser, the imports statement has to be replaced with a reference to a local copy of the common definitions YAML file
+   - https://forge.etsi.org/rep/nfv/SOL001/raw/v3.3.1/etsi_nfv_sol001_common_types.yaml
 
 data_types:
   tosca.datatypes.nfv.VirtualNetworkInterfaceRequirements:
@@ -360,6 +359,21 @@ data_types:
        type:   tosca.datatypes.nfv.VnfChangeExtConnectivityOperationConfiguration
        description: Configuration parameters for the changeExtVnfConnectivityOpConfig operation 
        required: false
+     change_current_package:
+       type: tosca.datatypes.nfv.VnfChangeCurrentPackageOperationConfiguration
+       description: Configuration parameters for the ChangeCurrentVnfPackage operation
+       required: false
+       # derived types are expected to introduce new properties, with their type derived from
+       # tosca.datatypes.nfv.VnfChangeCurrentPackageOperationConfiguration,
+       # with the same name as the operation designated to the ChangeCurrentVnfPackage request
+     create_snapshot:
+       type: tosca.datatypes.nfv.VnfCreateSnapshotOperationConfiguration
+       description: Configuration parameters for the CreateVnfSnapshot operation 
+       required: false
+     revert_to_snapshot:
+       type: tosca.datatypes.nfv.VnfRevertToSnapshotOperationConfiguration
+       description: Configuration parameters for the RevertToVnfSnapshot operation 
+       required: false
 
   tosca.datatypes.nfv.VnfInstantiateOperationConfiguration:
    derived_from: tosca.datatypes.Root
@@ -880,11 +894,124 @@ data_types:
           type: string
         required: true
 
-artifact_types:
+  tosca.datatypes.nfv.VnfPackageChangeSelector:
+    derived_from: tosca.datatypes.Root
+    description: data type describes the source and destination VNFDs as well as source deployment flavour for a change current VNF Package.
+    properties:
+      source_descriptor_id:
+        type: string
+        description: Identifier of the source VNFD and the source VNF package.
+        required: true
+      destination_descriptor_id:
+        type: string
+        description: Identifier of the destination VNFD and the destination VNF package.
+        required: true
+      source_flavour_id:
+        type: string
+        description: Identifier of the deployment flavour in the source VNF package for which this data type applies.
+        required: true
+
+  tosca.datatypes.nfv.VnfPackageChangeComponentMapping:
+    derived_from: tosca.datatypes.Root
+    description: A mapping between the identifier of a components or property in the source VNFD and the identifier of the corresponding component or property in the destination VNFD.
+    properties:
+      component_type:
+        type: string
+        description: The type of component or property. Possible values differentiate whether changes concern to some VNF component (e.g. VDU, internal VLD, etc.) or property (e.g. a Scaling Aspect, etc.).
+        constraints:
+          - valid_values: [ vdu, cp, virtual_link, virtual_storage, deployment_flavour, instantiation_level, scaling_aspect ]
+        required: true
+      source_id:
+        type: string
+        description: Identifier of the component or property in the source VNFD.
+        required: true
+      destination_id:
+        type: string
+        description: Identifier of the component or property in the destination VNFD.
+        required: true
+      description:
+        type: string
+        description: Human readable description of the component changes.
+        required: false
 
+  tosca.datatypes.nfv.VnfChangeCurrentPackageOperationConfiguration:
+    derived_from: tosca.datatypes.Root
+    description: represents information that affect the invocation of the change current VNF Package operation.
+    # This data type definition is reserved for future use in the present document.
+    # properties:
+      # derived types are expected to introduce new properties, with their type derived from tosca.datatypes.nfv.VnfChangeCurrentPackageOperationConfiguration, with the same name as the operation designated to the ChangeCurrentVnfPackage request
+
+  tosca.datatypes.nfv.VnfCreateSnapshotOperationConfiguration:
+    derived_from: tosca.datatypes.Root
+    description: represents information that affect the invocation of the CreateVnfSnapshot operation 
+  # This data type definition is reserved for future use in the present document.
+  # properties:
+
+  tosca.datatypes.nfv.VnfRevertToSnapshotOperationConfiguration:
+    derived_from: tosca.datatypes.Root
+    description: represents information that affect the invocation of the RevertToVnfSnapshot operation 
+  # This data type definition is reserved for future use in the present document.
+  # properties:
+
+artifact_types:  
   tosca.artifacts.nfv.SwImage:
     derived_from: tosca.artifacts.Deployment.Image
     description: describes the software image which is directly loaded on the virtualisation container realizing of the VDU or is to be loaded on a virtual storage resource
+    properties:
+      name:
+        type: string
+        description: Name of this software image 
+        required: true
+      version:
+        type: string
+        description: Version of this software image 
+        required: true
+      provider:
+        type: string
+        description: Provider of this software image
+        required: false
+      checksum:
+        type: tosca.datatypes.nfv.ChecksumData
+        description:  Checksum of the software image file 
+        required: true
+      container_format:
+        type: string
+        description: The container format describes the container file format in which software image is provided 
+        required: true
+        constraints:
+          - valid_values: [ aki, ami, ari, bare, docker, ova, ovf ]
+      disk_format:
+        type: string
+        description: The disk format of a software image is the format of the underlying disk image 
+        required: true
+        constraints:
+          - valid_values: [ aki, ami, ari, iso, qcow2, raw, vdi, vhd, vhdx, vmdk ]  
+      min_disk:
+        type: scalar-unit.size # Number
+        description:  The minimal disk size requirement for this software image 
+        required: true
+        constraints:
+          - greater_or_equal: 0 B
+      min_ram:
+        type: scalar-unit.size # Number
+        description: The minimal RAM requirement for this software image 
+        required: false
+        constraints:
+          - greater_or_equal: 0 B
+      size:
+        type: scalar-unit.size # Number
+        description: The size of this software image 
+        required: true
+      operating_system:
+        type: string
+        description: Identifies the operating system used in the software image 
+        required: false
+      supported_virtualisation_environments:
+        type: list
+        description: Identifies the virtualisation environments (e.g. hypervisor) compatible with this software image 
+        required: false
+        entry_schema:
+          type: string
 
   tosca.artifacts.Implementation.nfv.Mistral:
     derived_from: tosca.artifacts.Implementation
@@ -900,7 +1027,6 @@ capability_types:
     description: Indicates that the node that includes it can be pointed by a tosca.relationships.nfv.VirtualBindsTo relationship type which is used to model the VduHasCpd association
 
   tosca.capabilities.nfv.VirtualCompute:    
-    
     derived_from: tosca.capabilities.Node
     description: Describes the capabilities related to virtual compute resources 
     properties:
@@ -958,6 +1084,7 @@ interface_types:
   tosca.interfaces.nfv.Vnflcm:
     derived_from: tosca.interfaces.Root
     description: This interface encompasses a set of TOSCA operations corresponding to the VNF LCM operations defined in ETSI GS NFV-IFA 007 as well as to preamble and postamble procedures to the execution of the VNF LCM operations.
+    operations:
       instantiate:
         description: Invoked upon receipt of an Instantiate VNF request
       # inputs:
@@ -1032,6 +1159,17 @@ interface_types:
       #     required: false
       # derived types are expected to introduce additional_parameters with its
       # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+        inputs:
+          cause:
+            type: string
+            description: Indicates the reason why a healing procedure is required.
+            required: false
+          vnfc_instance_ids:
+            type: list
+            entry_schema:
+              type: string
+            description: List of VNFC instances requiring a healing action.
+            required: false
       heal_start:
         description: Invoked before heal
       heal_end:
@@ -1044,6 +1182,22 @@ interface_types:
         # required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+        inputs:
+          type:
+            type: string
+            description: Indicates the type of the scale operation requested.
+            constraints:
+              - valid_values: [ scale_out, scale_in ]
+          aspect:
+            type: string
+            description: Identifier of the scaling aspect.
+          number_of_steps:
+            type: integer
+            description: Number of scaling steps to be executed.
+            required: true
+            constraints:
+              - greater_than: 0
+            default: 1
       scale_start:
         description: Invoked before scale
       scale_end:
@@ -1056,15 +1210,82 @@ interface_types:
         # required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+        inputs:
+          instantiation_level:
+            type: string
+            description: Identifier of the target instantiation level of the current deployment flavour to which the VNF is requested to be scaled. Either instantiation_level or scale_info shall be provided.
+            required: false
+          scale_info:
+            type: map # key: aspectId
+            description: For each scaling aspect of the current deployment flavour, indicates the target scale level to which the VNF is to be scaled. Either instantiation_level or scale_info shall be provided.
+            required: false
+            entry_schema:
+              type: tosca.datatypes.nfv.ScaleInfo
       scale_to_level_start:
         description: Invoked before scale_to_level
       scale_to_level_end:
         description: Invoked after scale_to_level
+      create_snapshot:
+        description: Invoked upon receipt of a Create VNF snapshot request
+        # inputs:
+          # additional_parameters:
+          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
+          #   required: false
+      # derived types are expected to introduce additional_parameters with its
+      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+      create_snapshot_start:
+        description: Invoked before create_snapshot
+      create_snapshot_end:
+        description: Invoked after create_snapshot
+      revert_to_snapshot:
+        description: Invoked upon receipt of a Revert to VNF snapshot request
+        # inputs:
+          # additional_parameters:
+          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
+          #   required: false
+      # derived types are expected to introduce additional_parameters with its
+      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+      revert_to_snapshot_start:
+        description: Invoked before revert_to_snapshot
+      revert_to_snapshot_end:
+        description: Invoked after revert_to_snapshot
+      change_current_package:
+        description: Invoked by tosca.policies.nfv.VnfPackageChange
+        # inputs:
+          # additional_parameters:
+          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
+          #   required: false
+      # derived types are expected to introduce additional_parameters with its
+      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+      change_current_package_start:
+        description: Invoked by tosca.policies.nfv.VnfPackageChange 
+      change_current_package_end:
+        description: Invoked by tosca.policies.nfv.VnfPackageChange
+    notifications:
+      change_current_package_notification:
+        description: Invoked upon receipt of a ChangeCurrentVnfPackage request
+      change_current_package_start_notification:
+        description: Invoked before the operation designated to changing the current VNF package
+      change_current_package_end_notification:
+        description: Invoked after the operation designated to changing the current VNF package
 
   tosca.interfaces.nfv.VnfIndicator:
     derived_from: tosca.interfaces.Root
     description: This interface is an empty base interface type for deriving VNF specific interface types that include VNF indicator specific notifications.
 
+  tosca.interfaces.nfv.ChangeCurrentVnfPackage:
+    derived_from: tosca.interfaces.Root
+    description: This interface is an empty base interface type for deriving VNF specific interface types that include VNF Change Current VNF Package specific operation.
+    operations:
+      # operation_name: name of a VNF-specific operation serving the Change current VNF Package request.
+        # description: Invoked by tosca.policies.nfv.VnfPackageChange
+        # inputs:
+          # additional_parameters:
+          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
+          #   required: false
+      # derived types are expected to introduce additional_parameters with its
+      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
+
 node_types:
   tosca.nodes.nfv.VNF:
     derived_from: tosca.nodes.Root
@@ -1151,6 +1372,12 @@ node_types:
        type: tosca.datatypes.nfv.VnfProfile
        description: Describes a profile for instantiating VNFs of a particular NS DF according to a specific VNFD and VNF DF
        required: false
+    attributes:
+      scale_status:
+        type: map # key: aspectId
+        description: Scale status of the VNF, one entry per aspect. Represents for every scaling aspect how "big" the VNF has been scaled w.r.t. that aspect.
+        entry_schema:
+          type: tosca.datatypes.nfv.ScaleInfo
     requirements:
       - virtual_link:
           capability: tosca.capabilities.nfv.VirtualLinkable
@@ -1228,6 +1455,7 @@ node_types:
         type: tosca.datatypes.nfv.SwImageData
         description: Defines information related to a SwImage artifact used by this Vdu.Compute node 
         required: false # property is required when the node template has an associated artifact of type tosca.artifacts.nfv.SwImage and not required otherwise
+        status: deprecated
       boot_data:
         type: tosca.datatypes.nfv.BootData
         description: Contains the information used to customize a virtualised compute resource at boot time. The bootData may contain variable parts that are replaced by deployment specific values before being sent to the VIM.
@@ -1257,6 +1485,7 @@ node_types:
        type: tosca.datatypes.nfv.SwImageData
        description: Defines information related to a SwImage artifact used by this Vdu.Compute node. 
        required: false # property is required when the node template has an associated artifact of type tosca.artifacts.nfv.SwImage and not required otherwise
+       status: deprecated
     capabilities:
       virtual_storage:
        type: tosca.capabilities.nfv.VirtualStorage
@@ -1523,7 +1752,7 @@ policy_types:
        description: scope of the rule is an NFVI_node, an NFVI_PoP, etc.
        required: true
        constraints:
-        - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop ]
+        - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop, network_link_and_node ]
     targets: [ tosca.nodes.nfv.Vdu.Compute, tosca.nodes.nfv.VnfVirtualLink, tosca.groups.nfv.PlacementGroup ]
 
   tosca.policies.nfv.AntiAffinityRule:
@@ -1535,7 +1764,7 @@ policy_types:
        description: scope of the rule is an NFVI_node, an NFVI_PoP, etc.
        required: true
        constraints:
-        - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop ]
+        - valid_values: [ nfvi_node, zone, zone_group, nfvi_pop, network_link_and_node ]
     targets: [ tosca.nodes.nfv.Vdu.Compute, tosca.nodes.nfv.VnfVirtualLink, tosca.groups.nfv.PlacementGroup ]
   
   tosca.policies.nfv.SupportedVnfInterface:
@@ -1558,3 +1787,47 @@ policy_types:
     derived_from: tosca.policies.nfv.Abstract.SecurityGroupRule
     description: The SecurityGroupRule type is a policy type specified the matching criteria for the ingress and/or egress traffic to/from visited connection points as defined in ETSI GS NFV-IFA 011 [1].
     targets: [ tosca.nodes.nfv.VduCp, tosca.nodes.nfv.VnfExtCp ]
+
+  tosca.policies.nfv.VnfIndicator:
+    derived_from: tosca.policies.Root
+    description: The VnfIndicator policy type is a base policy type for defining VNF indicator specific policies that define the conditions to assess and the action to perform when a VNF indicator changes value as defined in ETSI GS NFV-IFA 011 [1].
+    properties:
+      source:
+        type: string
+        description: Describe the source of the indicator.
+        required: true
+        constraints:
+          - valid_values: [ vnf, em, both_vnf_and_em ]
+    targets: [ tosca.nodes.nfv.VNF ]
+
+  tosca.policies.nfv.VnfPackageChange:
+    derived_from: tosca.policies.Root
+    description: policy type specifying the processes and rules to be used for performing the resource related tasks, to change VNF instance to a different VNF Package (destination package)
+    properties:
+      selector:
+        type: tosca.datatypes.nfv.VnfPackageChangeSelector
+        description: Information to identify the source and destination VNFD for the change, and the related deployment flavours.
+        required: true
+      modification_qualifier:
+        type: string
+        description: Specifies the type of modification resulting from transitioning from srcVnfdId to dstVnfdId. The possible values are UP indicating that the destination VNF version is newer than the source version, DOWN indicating that the destination VNF version is older than the source version.
+        constraints: [ valid_values: [ up, down ] ]
+        required: true
+      additional_modification_description:
+        type: string
+        description: Additional information to qualify further the change between the two versions.
+        required: false
+      component_mappings:
+        type: list
+        entry_schema:
+          type: tosca.datatypes.nfv.VnfPackageChangeComponentMapping
+        description: Mapping information related to identifiers of components in source VNFD and destination VNFD that concern to the change process.
+        required: false
+      destination_flavour_id:
+        type: string
+        description: Identifies the deployment flavour in the destination VNF package for which this change applies. The flavour ID is defined in the destination VNF package.
+        required: true
+
+
+
+