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Re: Updated primer is at ...

From: Monica J Martin <Monica.Martin@Sun.COM>
Date: Tue, 08 Nov 2005 08:22:26 -0800
To: Gary Brown <gary@pi4tech.com>
Cc: "'WS-Choreography List'" <public-ws-chor@w3.org>
Message-id: <4370D0C2.1080404@sun.com>

+1 to Gary's suggestions. The only additional comment/question I have is 
that Section 4.1 Choreography lifecycle actually touches on managing 
state and possibly time. We may wish to consider if and how those can be 
related in the TOC structure and/or combined. Thanks.

> Comments on structure:
>
> Section 3 looks fine, except 3.3 should be "Grouping constructs" and 
> include Parallel, so that all the basic grouping constructs are 
> introduced together. I would also consider moving the 'perform' into 
> this section, as modularization (sub choreographes) should be treated 
> as a basic grouping concept.
>
> Section 4 - possibly group all the aspects that affect a choreo 
> lifecycle - e.g. finalizers, exceptions and completion condition, into 
> a single section that also outlines the state transition of a 
> choreography lifecycle.
>
> Possible structure of section 4:
>
> 4.1 Choreography lifecycle
> 4.1.1 State Transitions
> 4.1.2 Handling exceptions
> 4.1.3 Finalization (compensation handling)
> 4.1.4 Completion conditions
> 4.1.5 Coordination
>
> 4.2 Dependent Workunits
> - disadvantage is that it can obscure the flow
>
> 4.3 Modularization (Synchronous perform) - if not moved into section 3
>
> 4.4 Concurrent (asynchronous) perform
> (including join mechanism, blocking workunit awaiting specific 
> subchoreo instance(s) completing or business predicate succeeding)
>
> 4.5 Non-observable
> 4.5.1 No action
> 4.5.2 Silent action
> 4.5.3 Silent variables
>
> 4.6 Time
> 4.6.1 Timeout of a sub choreography in a complete condition
> 4.6.2 Timeout of an interaction
> 4.6.3 Waiting using a blocking workunit
>
> 4.7 Managing state
> 4.7.1 Free variables (bound in a perform)
> 4.7.2 Isolated choreographies
>
> The contents is not very different, just tried to group some aspects 
> in a way that will make it easier to introduce the concepts and 
> explore related issues in the same part of the document.
>
> Regards
> Gary
Received on Tuesday, 8 November 2005 16:22:36 GMT

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