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Re: travel agency use cases

From: Monica J. Martin <monica.martin@sun.com>
Date: Mon, 30 Jun 2003 16:51:53 -0600
Message-ID: <3F00BF09.3000102@sun.com>
To: jdart@tibco.com
CC: "'public-ws-chor@w3.org '" <public-ws-chor@w3.org>

Jon Dart wrote:

> I haven't received any feedback to the use case diagrams I drew up.
> Are these sufficiently realistic to be useful? Is the use of UML 
> diagrams helpful, or are there too many limitations? Is it worthwhile 
> adding additional text around these so that they could be included in 
> the requirements doc?

mm1: Graphical representations help regardless if they are use cases, 
activity diagrams, or process flows. Although, I don't think they 
replace but augment textual descriptions.  It would help to see all the 
flows together as they decompose to a lower level. 

More specifically, please consider how to handle cancellations on 
BookVacationActivity (Would this also be shown at the use case level for 
TravelAgencyUseCase?).  What about error conditions? On 
ProcessBookingActivity, what is the context of Finalize ......?  Is this 
just the compilation of the reservation detail for submittal and actual 
payment commitment?  Perhaps this should be specified. On 
SelectHotelActivity, when the booking is confirmed, that exits in 
Success.  Therefore, it should say such (rather than OK).

> Also, IMO this exercise results in requirements that impact the 
> choreography language. In particular, the need to have nested 
> sub-choreographies (with MEPs a special case of these) and to have 
> error handling facilities. Any comments on this?
> --Jon
Received on Monday, 30 June 2003 18:40:47 UTC

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