Remove sequence diagram image in the yaml and instead refer to ICM

code/API_definitions/number-verification.yaml

@@ -24,6 +24,9 @@ info:
 
     # The Authentication Request
 
+    **For NumberVerification the API provider guarantees that there is no user interaction.** Would user interaction be needed the authorization server returns an error.
+    Authentication methods such as SMS OTP or user/password are incompatible, as the goal is to validate the mobile phone number that is accessing the App.
+
     ## Authentication Request with a temporary token
 
     If the API Consumer has a TS.43 temporary token created on the mobile device then this API works over all connections e.g. WiFi taking advantage of the SIM-Based authentication.
@@ -38,6 +41,9 @@ info:
     If the API Consumer does not have a TS.43 temporary token then the API Consumer must use OpenId Connect Authorization Code Flow as described in the current release of [CAMARA APIs Access and User Consent Management](https://github.com/camaraproject/IdentityAndConsentManagement).
     For this method of authentication to work, the device must be connected to the mobile network.
 
+    The API Consumer should use the request parameter prompt=none in the Authentication Request, as described in **[OIDC Connect](https://openid.net/specs/openid-connect-core-1_0.html#AuthRequest)**, ensuring no user interaction.
+    The API Provider implies the request parameter prompt=none in the Authentication Request for this API.
+
     # Resources and Operations overview
 
     This API currently provides two endpoints which both require a **3-legged token** obtained by using one of the two methods indicated in _The Authentication Request_ section. This therefore **excludes** using, for example, SMS/OTP or user/password as an authentication method:
@@ -46,25 +52,6 @@ info:
       It compares the received phone number with the user's phone number associated to the access token in order to respond **true/false**.
     - The /device-phone-number endpoint returns the phone number associated by the network operator with the SIM in the end user's device.
 
-    # Sequence Diagram
-
-    The following sequence diagram shows an example of a direct integration into the developer's application and the API Provider's Authorization Server and API for the case that no temporary token is available.
-
-    ![UML Sequence Diagram](https://raw.githubusercontent.com/camaraproject/NumberVerification/r2.4/documentation/API_documentation/assets/uml_v0.3.jpg)
-
-    **Implementation Details:**
-
-    - **(1):** Authentication must be automatic without any user interactions.
-      Authentication methods such as SMS OTP or user/password are incompatible, as the goal is to validate the mobile phone number that is accessing the App.
-
-      The API Consumer should use the request parameter prompt=none in the Authentication Request, as described in **[OIDC Connect](https://openid.net/specs/openid-connect-core-1_0.html#AuthRequest)**, ensuring no user interaction.
-
-      The API Provider implies the request parameter prompt=none in the Authentication Request for this API.
-
-    - **(2):** The way in which the phone number is retrieved depends upon the implementation.
-      For example, the access token may be a self-contained encrypted JWT, and so the API provider can decrypt and identify phone number directly from the access token.
-      Other implementations might retrieve the phone number associated with the access token from their Authorization Server.
-
     # Authorization and authentication
 
     The "Camara Security and Interoperability Profile" provides details of how an API consumer requests an access token. Please refer to [Identity and Consent Management](https://github.com/camaraproject/IdentityAndConsentManagement/) for the released version of the profile.
@@ -83,7 +70,7 @@ info:
 
     As a specific rule, error `501 - NOT_IMPLEMENTED` can be only a possible error response if it is explicitly documented in the API.
 
-  version: 2.1.0-rc.1
+  version: wip
   x-camara-commonalities: 0.6
   license:
     name: Apache 2.0
@@ -92,7 +79,7 @@ externalDocs:
   description: Project documentation at CAMARA
   url: https://github.com/camaraproject/NumberVerification
 servers:
-  - url: '{apiRoot}/number-verification/v2rc1'
+  - url: '{apiRoot}/number-verification/vwip'
     variables:
       apiRoot:
         default: http://localhost:9091