RE: [service-orientated-architecture] Re: What is a "well defined interface"?

[Bill Appleton]

There is a total trade off between being specific and powerful and being general purpose and requiring lots of additional work. The more universal an interface is the less chance anyone is going to use it, it would be too hard. There are a bunch of w3c standards no one uses for this reason. The most used services (at least for us) do a specific thing for a specific vendor.                                                                                                                                        Bill Appleton CTO DreamFactory Software tel. 408-399-7454  x 102 fax. 408-351-9005 cel. 408-656-3024 [EMAIL PROTECTED]       From: service-orientated-architecture@yahoogroups.com [mailto:service-orientated-architecture@yahoogroups.com] On Behalf Of Jan Algermissen Sent: Saturday, February 25, 2006 12:16 PM To: service-orientated-architecture@yahoogroups.com Subject: Re: [service-orientated-architecture] Re: What is a "well defined interface"?   On Feb 25, 2006, at 8:15 PM, Ron Schmelzer wrote: > So, can you ever truly be "decoupled"? IMHO, true decoupling is reached when the only semantics the consumer  needs to know to use a given service are those that it takes to  understand the task in general (regardless of which service). IOW, in order to order a pizza you need to understand the basics of  ordering and what it is that you want to order (pizza). This knowledge, a uniform API and the ability of the service to show  the path through the application at runtime should be sufficient to  substitute the service by any other. Ah - you also need a way for the  service to tell the client that it's expectation (order pizza) cannot  be met (should that be the case). Jan ________________________________________________________________________ _______________ Jan Algermissen, Consultant & Programmer                         http://jalgermissen.com Tugboat Consulting, 'Applying Web technology to enterprise IT'   http://www.tugboat.de SPONSORED LINKS Computer software Computer aided design software Computer job Soa Service-oriented architecture YAHOO! GROUPS LINKS  Visit your group "service-orientated-architecture" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.