Issue 008 - WS-C: Remove fault 4.6 AlreadyRegistered

["Peter Furniss" <peter.furniss@choreology.com>]

This is hereby declared to be ws-tx Issue 008.

Please follow-up to this message or ensure the subject line starts Issue
008 - (ignoring Re:, [ws-tx] etc)

The Related Issues list has been updated to show the issue numbers.

Issue name -- WS-C: Remove fault 4.6 AlreadyRegistered
 
Owner:  Alastair Green [mailto:alastair.green@choreology.com] 

Target document and draft:

Protocol:  Coord

Artifact:  spec / schema

Draft:
Coord spec working draft uploaded 2005-12-02

WS-Coordination schema contributed by input authors, not yet uploaded
to Working Drafts folder
 
Link to the document referenced:

http://www.oasis-open.org/committees/download.php/15738/WS-Coordination-
2005-11-22.pdf

Section and PDF line number:

Section 4.6 "Already Registered", ll. 460-468


Issue type:

Design


Related issues:

Issue 003 - WS-C: Appropriate categories of fault
Issue 014 - WS-C: EPR equality comparison should not be relied upon


Issue Description:

AlreadyRegistered fault is redundant if participant registration is 
treated as retriable.


Issue Details:

[This issue stems from Choreology Contribution issues TX-19 and TX-20.]

The fault AlreadyRegistered is inappropriate for a message-based 
protocol connecting loosely-coupled and
potentially administratively-independent execution entities, 
communicating over unreliable transports.

The current fault preamble (ll. 461-2) reads:

"This fault is sent to a participant if the coordinator detects that the

participant attempted to register for
the same protocol of the same activity more than once."

If related issue "WS-AT/WS-C: Make Register/RegisterResponse retriable" 
is resolved by agreeing to make the Register/RegisterResponse exchange 
retriable, then this issue should be resolved as proposed below.


Proposed Resolution:

Remove ll. 460-468 of the specification.
Remove l. 99 of the schema document.