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Subject: Re: [soa-rm] Service Contract


The diagrams in your attachment depict services and semantics in terms
of operations and parameters.  IMHO this is a carry over from the
original OO orientation of UML, which implies rigid, inflexible API
based services.  Such an approach goes against the spirit of SOA, which
IMO should be based on loosely coupled principals.   While one could
design an SOA based on rigid APIs, I for one would not do so.  I also
question whether the RM should encourage the API model.  I, personally,
would go further and discourage the API based approach in a Service
Oriented Architecture.  


IMHO this is the legacy from UML and does

On Tue, 2005-04-26 at 12:52 +0100, George Ntinolazos wrote:
> Hi all
> Please find attached a document with notes re: Service Contracts
> Cheers
> George
> ___________________________________________
> George Ntinolazos BSc(Hons), MSc, MBCS
> Product Director
> Strata Software Ltd.
> Office: +44 (0)1483 422515
> Mobile: +44 (0)7966 652063
> www.stratasoftware.com
> Best Practice for Service-Oriented Architectures
Don Flinn
President, Flint Security LLC
Tel: 781-856-7230
Fax: 781-631-7693
e-mail: flinn@alum.mit.edu

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