diff --git a/src/SOL003/VNFIndicator/VNFIndicator.yaml b/src/SOL003/VNFIndicator/VNFIndicator.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..dbdde0c14be5b7364b97675d0e57bbffb4ee6f10
--- /dev/null
+++ b/src/SOL003/VNFIndicator/VNFIndicator.yaml
@@ -0,0 +1,533 @@
+swagger: "2.0"
+
+info:
+  version: "2.3.0"
+  title: SOL003
+  license:
+    name: "ETSI Forge copyright notice"
+    url: https://forge.etsi.org/etsi-forge-copyright-notice.txt
+
+basePath: "/vnfind/v1"
+
+schemes:
+  - https
+
+consumes:
+  - "application/json"
+produces:
+  - "application/json"
+
+paths:
+###############################################################################
+# VNF indicators                                                              #
+###############################################################################
+  '/indicators':
+  #SOL003 location: 8.4.2
+    get:
+      description: >
+        The GET method queries multiple VNF indicators.
+      parameters:
+        - name: Accept
+          description: >
+            Content-Types that are acceptable for the response.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Content-Type
+          description: >
+            The MIME type of the body of the request.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        200:
+          description: > 
+            The list of VNF indicators was queried successfully.
+            The response body shall contain the representations of all VNF
+            indicators that match the attribute filter.
+          headers:
+            Content-Type:
+              description: >
+                The MIME type of the body of the request.
+                Reference: IETF RFC 7231
+              type: string
+              maximum: 1
+              minimum: 1
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+          schema:
+            type: array
+            items: 
+              $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicator"
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400-attr-based-filtering-error"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+###############################################################################
+# VNF indicators related to a VNF instance                                    #
+###############################################################################
+  '/indicators/{vnfInstanceId}':
+  #SOL003 location: 8.4.3
+    parameters:
+      - name: vnfInstanceId
+        description: >
+          Identifier of the VNF instance to which the VNF indicator applies.
+          This identifier can be retrieved from the resource referenced by the
+          "Location" HTTP header in the response to a POST request creating a
+          new VNF instance resource. It can also be retrieved from the "id"
+          attribute in the payload body of that response.
+        in: path
+        type: string
+        required: true
+    get:
+      description: >
+        The GET method queries multiple VNF indicators related to a VNF
+        instance.
+      parameters:
+        - name: Accept
+          description: >
+            Content-Types that are acceptable for the response.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Content-Type
+          description: >
+            The MIME type of the body of the request.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        200:
+          description: > 
+            The list of VNF indicators was queried successfully.
+            The response body shall contain the representations of all VNF
+            indicators that are related to the particular VNF instance and
+            that match the attribute filter.
+          headers:
+            Content-Type:
+              description: >
+                The MIME type of the body of the request.
+                Reference: IETF RFC 7231
+              type: string
+              maximum: 1
+              minimum: 1
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+          schema:
+            type: array
+            items: 
+              $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicator"
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400-attr-based-filtering-error"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+###############################################################################
+# Individual VNF indicator                                                    #
+###############################################################################
+  '/indicators/{vnfInstanceId}/{indicatorId}':
+  #SOL003 location: 8.4.4
+    parameters:
+      - name: indicatorId
+        description: >
+          Identifier of the VNF indicator.
+          This identifier can be retrieved from the resource referenced by the
+          payload body in the response to a POST request creating a new VNF
+          instance resource.
+        in: path
+        type: string
+        required: true
+      - name: vnfInstanceId
+        description: >
+          Identifier of the VNF instance to which the VNF indicator applies.
+          This identifier can be retrieved from the resource referenced by the
+          "Location" HTTP header in the response to a POST request creating a
+          new VNF instance resource. It can also be retrieved from the "id"
+          attribute in the payload body of that response.
+        in: path
+        type: string
+        required: true
+    get:
+      description: >
+        The GET method reads a VNF indicator.
+      parameters:
+        - name: Accept
+          description: >
+            Content-Types that are acceptable for the response.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Content-Type
+          description: >
+            The MIME type of the body of the request.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        200:
+          description: > 
+            The VNF indicator was read successfully.
+            The response body shall contain the representation of the VNF
+            indicator.
+          headers:
+            Content-Type:
+              description: >
+                The MIME type of the body of the request.
+                Reference: IETF RFC 7231
+              type: string
+              maximum: 1
+              minimum: 1
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+          schema: 
+            $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicator"
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+###############################################################################
+# Subscriptions                                                              #
+###############################################################################
+  '/subscriptions':
+  #SOL003 location: 8.4.5
+    post:
+      description: >
+        The POST method creates a new subscription.
+      parameters:
+        - name: VnfIndicatorSubscriptionRequest
+          description: Details of the subscription to be created.
+          in: body
+          required: true
+          schema:
+            $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicatorSubscriptionRequest"
+        - name: Accept
+          description: >
+            Content-Types that are acceptable for the response.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Content-Type
+          description: >
+            The MIME type of the body of the request.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        201:
+          description: > 
+            The subscription was created successfully. 
+            The response body shall contain a representation of the created
+            subscription resource.
+            The HTTP response shall include a "Location" HTTP header that
+            points to the created subscription resource.
+          headers:
+            Content-Type:
+              description: >
+                The MIME type of the body of the request.
+                Reference: IETF RFC 7231
+              type: string
+              maximum: 1
+              minimum: 1
+            Location:
+              description: The resource URI of the created VNF instance
+              type: string
+              format: url
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+          schema:
+            type: array
+            items: 
+              $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicatorSubscription"
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+    get:
+      description: >
+        The GET method queries the list of active subscriptions of the
+        functional block that invokes the method. It can be used e.g. for
+        resynchronization after error situations.
+      parameters:
+        - name: Accept
+          description: >
+            Content-Types that are acceptable for the response.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Content-Type
+          description: >
+            The MIME type of the body of the request.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        200:
+          description: > 
+            The list of subscriptions was queried successfully.
+            The response body shall contain the representations of all active
+            subscriptions of the functional block that invokes the method
+            which match the attribute filter.
+          headers:
+            Content-Type:
+              description: >
+                The MIME type of the body of the request.
+                Reference: IETF RFC 7231
+              type: string
+              maximum: 1
+              minimum: 1
+            Location:
+              description: The resource URI of the created VNF instance
+              type: string
+              format: url
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+          schema:
+            type: array
+            items: 
+              $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicatorSubscription"
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400-attr-based-filtering-error"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+###############################################################################
+# Individual subscription                                                     #
+###############################################################################
+  '/indicators/subscriptions/{subscriptionId}':
+  #SOL003 location: 8.4.6
+    parameters:
+      - name: subscriptionId
+        description: >
+          Identifier of this subscription.
+          This identifier can be retrieved from the resource referenced by the
+          "Location" HTTP header in the response to a POST request creating a
+          new subscription resource. It can also be retrieved from the "id"
+          attribute in the payload body of that response.
+        in: path
+        type: string
+        required: true
+    get:
+      description: >
+        The GET method reads an individual subscription.
+      parameters:
+        - name: Accept
+          description: >
+            Content-Types that are acceptable for the response.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Content-Type
+          description: >
+            The MIME type of the body of the request.
+            Reference: IETF RFC 7231
+          in: header
+          required: true
+          type: string
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        200:
+          description: > 
+            The operation has completed successfully.
+            The response body shall contain a representation of the
+            subscription resource.
+          headers:
+            Content-Type:
+              description: >
+                The MIME type of the body of the request.
+                Reference: IETF RFC 7231
+              type: string
+              maximum: 1
+              minimum: 1
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+          schema: 
+            $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicatorSubscription"
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+    delete:
+      description: >
+        The DELETE method terminates an individual subscription.
+      parameters:
+        - name: Authorization
+          description: >
+            The authorization token for the request.
+            Reference: IETF RFC 7235
+          in: header
+          required: true
+          type: string
+      responses:
+        204:
+          description: > 
+            The subscription resource was deleted successfully.
+            The response body shall be empty.
+          headers:
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
diff --git a/src/SOL003/VNFIndicatorNotification/VNFIndicatorNotification.yaml b/src/SOL003/VNFIndicatorNotification/VNFIndicatorNotification.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..c864b15e4c96757f84e9e3a5b36eed347cf47f60
--- /dev/null
+++ b/src/SOL003/VNFIndicatorNotification/VNFIndicatorNotification.yaml
@@ -0,0 +1,99 @@
+swagger: "2.0"
+
+info:
+  version: "2.3.0"
+  title: SOL003 - VNF Lifecycle Management Notification interface
+  license:
+    name: "ETSI Forge copyright notice"
+    url: https://forge.etsi.org/etsi-forge-copyright-notice.txt
+  contact: 
+    name: "NFV-SOL WG"
+
+basePath: "/callback/v1"
+
+schemes:
+  - https
+
+consumes:
+  - "application/json"
+produces:
+  - "application/json"
+
+paths:
+###############################################################################
+# Notification endpoint VnfIndicatorValueChangeNotification                   #
+###############################################################################
+  '/URI-is-provided-by-the-client-when-creating-the-subscription-VnfIndicatorValueChangeNotification':
+    #SOL003 location: 8.4.7
+    post:
+      description: >
+        The POST method notifies a VNF alarm or that the alarm list has been
+        rebuilt.
+      parameters:
+        - name: AlarmListRebuiltNotification
+          description: >
+            Information that the alarm list has been rebuilt by the VNFM
+          in: body
+          required: true
+          schema:
+            $ref: "../../definitions/SOL002SOL003VNFIndicator_def.yaml#/definitions/VnfIndicatorValueChangeNotification"
+      responses:
+        204:
+          description: > 
+            The notification was delivered successfully.
+            The response body shall be empty.
+          headers:
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
+    get:
+      description: >
+        The GET method allows the server to test the notification endpoint
+        that is provided by the client, e.g. during subscription.
+      responses:
+        204:
+          description: > 
+            The notification endpoint was tested successfully.
+            The response body shall be empty.
+          headers:
+            WWW-Authenticate:
+              description: >
+                Challenge if the corresponding HTTP request has not provided
+                authorization, or error details if the corresponding HTTP
+                request has provided an invalid authorization token.
+              type: string
+              maximum: 1
+              minimum: 0
+        400:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/400"
+        401:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/401"
+        403:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/403"
+        405:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/405"
+        406:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/406"
+        500:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/500"
+        503:
+          $ref: "../../responses/SOL002SOL003_resp.yaml#/responses/503"
diff --git a/src/definitions/SOL002SOL003VNFIndicator_def.yaml b/src/definitions/SOL002SOL003VNFIndicator_def.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7ba91a92469b65edcd78a612c7461cee94f3ad7d
--- /dev/null
+++ b/src/definitions/SOL002SOL003VNFIndicator_def.yaml
@@ -0,0 +1,210 @@
+# Copyright (c) ETSI 2017.
+# https://forge.etsi.org/etsi-forge-copyright-notice.txt
+
+definitions:
+  VnfIndicator:
+    description: > 
+      This type represents a VNF indicator value.
+    type: object
+    required:  
+      - id
+      - value
+      - vnfInstanceId
+      - _links
+    properties: 
+      id:
+        description: >
+          Identifier of this VNF indicator.
+        $ref: "SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
+      name:
+        description: >
+          Human readable name of the indicator. Shall be present if defined in
+          the VNFD.
+        type: string
+      value: 
+        description: >
+          Provides the value of the indicator. The value format is defined in
+          the VNFD.
+          ETSI GS NFV-SOL 001 specifies the structure and format of the 
+          VNFD based on TOSCA specifications.
+        type: object
+      vnfInstanceId:
+        description: >
+          Identifier of the VNF instance which provides the indicator value.
+        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
+      _links:
+        description: >
+          Links for this resource.
+        type: object
+        required: 
+          - self
+          - vnfInstance
+        properties: 
+          self:
+            description: >
+              URI of this resource.
+            $ref: "SOL002SOL003_def.yaml#/definitions/Link"
+          vnfInstance:
+            description: >
+              Link to the related VNF instance resource.
+            $ref: "SOL002SOL003_def.yaml#/definitions/Link"
+
+  VnfIndicatorNotificationsFilter:
+    description: >
+      This type represents a subscription filter related to notifications
+      about VNF indicator value changes.
+      At a particular nesting level in the filter structure, the following
+      applies: All attributes shall match in order for the filter to match
+      (logical "and" between different filter attributes). If an attribute is
+      an array, the attribute shall match if at least one of the values in the
+      array matches (logical "or" between the values of one filter attribute).
+    type: object
+    properties: 
+      vnfInstanceSubscriptionFilter:
+        description: >
+          Filter criteria to select VNF instances about which to notify.
+        $ref: "SOL002SOL003_def.yaml#/definitions/VnfInstanceSubscriptionFilter"
+      indicatorIds:
+        description: >
+          Match particular VNF indicator identifiers.
+        type: array
+        items: 
+          $ref: "SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
+
+  VnfIndicatorSubscription:
+    description: >
+      This type represents a subscription related to notifications about VNF
+      indicator value changes.
+    type: object
+    required: 
+      - id
+      - callbackUri
+      - _links
+    properties: 
+      id:
+        description: >
+          Identifier of this subscription resource.
+        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
+      filter:
+        description: >
+          Filter settings for this subscription, to define the subset of all
+          notifications this subscription relates to. A particular
+          notification is sent to the subscriber if the filter matches, or if
+          there is no filter.
+        $ref: "#/definitions/VnfIndicatorNotificationsFilter"
+      callbackUri:
+        description: >
+          The URI of the endpoint to send the notification to.
+        type: string
+        format: url
+      _links:
+        description: >
+          Links for this resource.
+        type: object
+        required:
+          - self
+        properties:
+          self:
+            description: >
+              URI of this resource.
+            $ref: "SOL002SOL003_def.yaml#/definitions/Link"
+
+  VnfIndicatorSubscriptionRequest:
+    description: >
+      This type represents a subscription request related to VNF indicator
+      value change notifications.
+    type: object
+    required: 
+      - callbackUri
+    properties: 
+      filter:
+        description: >
+          Filter settings for this subscription, to define the subset of all
+          notifications this subscription relates to. A particular
+          notification is sent to the subscriber if the filter matches, or if
+          there is no filter.
+        $ref: "#/definitions/VnfIndicatorNotificationsFilter"
+      callbackUri:
+        description: >
+          The URI of the endpoint to send the notification to.
+        type: string
+        format: url
+      authentication:
+        description: >
+          Authentication parameters to configure the use of Authorization
+          when sending notifications corresponding to this subscription.
+          This attribute shall only be present if the subscriber requires
+          authorization of notifications.
+        $ref: "SOL002SOL003_def.yaml#/definitions/SubscriptionAuthentication"
+
+  VnfIndicatorValueChangeNotification:
+    description: >
+      This type represents a VNF indicator value change notification.
+    type: object
+    required: 
+      - id
+      - notificationType
+      - subscriptionId
+      - timeStamp
+      - vnfIndicatorId
+      - value
+      - vnfInstanceId
+      - _links
+    properties: 
+      id: 
+        description: >
+          Identifier of this notification. If a notification is sent multiple
+          times due to multiple subscriptions, the "id" attribute of all these
+          notifications shall have the same value.
+        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
+      notificationType:
+        description: >
+          Discriminator for the different notification types. Shall be set to
+          "VnfIndicatorValueChangeNotification" for this notification type.
+        type: string
+        enum: 
+          - VnfIndicatorValueChangeNotification
+      subscriptionId:
+        description: >
+          Identifier of the subscription that this notification relates to.
+        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
+      timeStamp:
+        description: >
+          Date-time of the generation of the notification.
+        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
+      vnfIndicatorId:
+        description: >
+          Identifier of the VNF indicator whose value has changed.
+        $ref: "SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
+      name:
+        description: >
+          Human readable name of the VNF indicator. Shall be present if
+          defined in the VNFD.
+        type: string
+      value:
+        description: >
+          Provides the value of the VNF indicator. The value format is defined
+          in the VNFD.
+          ETSI GS NFV-SOL 001 specifies the structure and format of the VNFD
+          based on TOSCA specifications.
+        type: object
+      vnfInstanceId:
+        description: >
+          Identifier of the VNF instance which provides the indicator value.
+        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
+      _links:
+        description: >
+          Links for this resource.
+        type: object
+        required: 
+          - vnfInstance
+          - subscription
+        properties:
+          vnfInstance:
+            description: >
+              Link to the related VNF instance resource.
+            $ref: "SOL002SOL003_def.yaml#/definitions/Link"
+          subscription:
+            description: >
+              Link to the related subscription.
+            $ref: "SOL002SOL003_def.yaml#/definitions/Link"