Re: [service-orientated-architecture] Differences between SOA and MVC?

[Keith Harrison-Broninski]

Hi Ron Sorry if my reply sounded flip!  I didn't mean to sound as if I was dismissing the topic in a high-handed way.  My sincere apologies. MVC applies at many levels, doesn't it - most enterprise systems, service-enabled or not, feature many instances of the pattern - which is where your Ruby on Rails example comes in. But your question was specifically about application of the MVC pattern to SOA.  And it does seem to me that services are to components (or applications, or databases, etc) what views are to models. Gautham writes: The View is something which is volatile and hence can change over a period of time. For instance, view can be either HTML, RSS readers or rich clients like dream factory stuff. Hence the way I see it, the View is a service consumer. Model forms the component, yes. The controller forms the service interface, service governance etc. Well, not really, Gautham.  All software is volatile, isn't it, especially business software.  The point of MVC is to decouple model changes from view changes.  Just like SOA! I really think that what we talk about on this list is how to apply the MVC pattern to very large pieces of software.  As many people would recognize (and I've personally said so in various of forms of print over the years), SOA is essentially the latest incarnation of a move towards software modularization that begin in the 1960s - a journey in which development of the MVC pattern at Xerox Parc was a landmark. -- All the best Keith http://keith.harrison-broninski.info Ron Schmelzer wrote: So, are you saying that MVC is in the small what SOA is in the large? And... how would you apply techniques for building SOA on technologies such as Ruby on Rails that tightly couple the View part of the architecture to a particular presentation form? I think the question begs a deeper consideration ;) Ron Keith Harrison-Broninski wrote: Technically, the analogy is very simple: Model = Component View = Service Controller = Middleware connecting the two (application server, ESB, etc) -- All the best Keith http://keith.harrison-broninski.info __________ NOD32 1.1663 (20060716) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com __________ NOD32 1.1663 (20060716) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com -- _____________________________________________________________ Ronald Schmelzer [EMAIL PROTECTED] Senior Analyst ZapThink LLC Direct: 781-577-2779 / Main: 781-207-0203 __._,_.___ 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. __,_._,___