Re: [ebxml-bp] Questions for f2f concerning BPSS choreographyconstructs, schema and implementation requirements

[Duane Nickull <dnickull@adobe.com>]

Here are some questions/comments from me for the conversation:

from Duane Nickull

1. If BinaryCollaboration can be an “InnerCollaboration”, should it not 
show this in the model with a self referencial composition arrow?
2. timeToPerform should perhaps be another class and own attributes for 
things like timeToPerformValue and timeToPerformQualifierValue (example: 
“seconds, minutes, hours, days etc) so it can be more readable by 
applications and also cover both long running (perhaps years) and short 
running (perhaps less than a minute) choreographies. The way it is now, 
if we use “seconds for everything, some of the numbers may be 
unfeasonably long (how many seconds in General Motors 7 year car warranty?).
3. Role has to have a role type and role reference (URI or URL). Role 
limit is also something that may need to be looked at (how many trading 
parties can be one role in a choreography? It does state a choreography 
always have exactly two roles but do they have to be different roles? 
Applications will need to have this constraint explicitly available to 
prevent anomalies at runtime.
4. I changed the name of “State” to “StartState” to match “CompetionState”
5. I disagree that a specific BusinessTransactionActivity should know if 
it is concurrent with other BusinessTransactionActivities, however there 
may be reasons I am not aware of. Can you elaborate?
6. “isLegallyBinding” should not, IMO, be in the BP instance. It is not 
possible to make such statements without knowing the details of the 
parties involved and the laws they are subject to. There is no way to 
reconcile the laws of every country plus international business law to 
allow such declarations.
7. “GuardCondition” should be a separate class rather than an attribute 
of “CompletionState”. There are likely additional attribute to the 
GuardCondition that will need to be detailed in greater atomicity.
8. Rather than GUID’s , prefer to use UUID’s as per the ebXML 
architecture. If there is a reason why GUID instead, please elaborate.
9. I see a need to add a link to a Business Object. The Business Object 
itself has state and there may be dependencies to the BusinessState 
based on the state of the BusinessObject. Example: an instance of 
BusinessObject may be “owned” or “found”. A Business Object has other 
properties that are relevant to law enforcement.

Duane

-- 
Senior Standards Strategist
Adobe Systems, Inc.
http://www.adobe.com