Re: [ebxml-bp] Roles - an Explanation

["Monica J. Martin" <Monica.Martin@Sun.COM>]

Hima
I encourage you to attend today's call so we can discuss. I believe 
Martin is still on holiday so we may not have all the information we 
require; we'll do the best we can.

If you look at the scanned pictures Sally provided and those I posted in 
Visio (.vsd) and in .gif, you can see some of the role bindings and 
relationships we discussed in more detail in the F2F.

In addition, on the signals, if changes may be required in the schema, 
let's discuss it so they can be made.

Thanks.

>Mukkamala: How about the case where you have a collaborationActivity between Buyer and Seller. In this case there are only two "External Roles". Your note talks about requiring 3 external roles for the usage of collaboration activity.
>
>Few  questions about the schema submitted
>
>a) CollaborationActivity has roles as child elements. Collaboration pointed to by collaborationId has roles to which define the roles relevant for the collaboration. What is the relationship between these two.
>
>b) It would be helpful to have an example instance to base the comments on. I apologize if there is one already based on the latest schema.
>
>c) There are some requirements for contents of signals like RefToMessageId which have to be present to map the signal with messages to which it's being sent. How do we enforce this requirement for interoperability purposes.
>
>d) I may be missing this, but how do I map between the fact that acknowledgment is requested and the particular type of acknowledgment signal to be used.
>
>Hopefully after spending some more time and with an example, I'll have more questions.
>
>Roberts: Every binary collaboration has two roles.  This level of role is use to indicate the relationship between the parties and the transactions
>
>
>ExternalRole are used to map 'real' roles to thoe used by the Binary Collaborations.  This is done by saying that an External Role performs a BC role.
>
>
>When a Binary collaboration calls another BinaryCollaboration using CollaborationActivity the BinaryCollaration Roles are mapped to the new BinaryCollaboration roles.
>
>
>An Example:
>
>3 top level BC
>        HandleOrder  Roles: Buyer and Seller
>        QueryOrder: Buyer and Seller
>        CreditCheck: Customer and CreditService
>
>External Roles
>        Retailer
>        Wholesaler
>        CreditAgency
>
>External Role Mappings
>        Retailer performs Buyer
>        Wholesaler performs Seller and Customer
>        CreditAgency performs CreditService
>
>HandleOrder invokes CreditCheck via a CollaborationActivity
>        Role Mapping
>                Seller performs Customer
>                CreditAgency* perform CreditService
>
>* : Notice use of External Role within the CollaborationActivity.
>
>In order for this to work there would have to be at least three parties bound to the three roles involved.  This may be new but I believe is needed.
>