a single canonical viewacross an enterprise may exist but not used (this is what I think Steve meant) - Michael
----- Original Message ---- From: Steve Jones <[EMAIL PROTECTED]> To: [email protected] Sent: Saturday, October 18, 2008 3:04:11 PM Subject: Re: [service-orientated-architecture] Re: van Hoof on EDA & SOA Depends what you mean by canonical. IME a single canonical view across an enterprise is pretty much IT suicide. Steve 2008/10/17 Kirstan Vandersluis <[EMAIL PROTECTED] com>: > --- In service-orientated- architecture@ yahoogroups. com, Michael > Poulin <[EMAIL PROTECTED] .> wrote: >> >> Yes, it was deliberate overstatement though based on OASIS SOA RM > standard. >> When I talk with people who see value in SOA Projects, I usually > one of two cases (sometimes, both): >> 1) it is just an initial first pilot project 'to taste the water', > and it is OK >> 2) Web Services are used for application integration w/o going > into real SOA value of business functionality >> >> Actually, I do not mind having SOA projects but only AFTER the > overall business functionality picture and SOA environment are in > place: think/see globally and move locally. > > Yes, thinking globally and acting locally boils it down nicely. But > the reality is there is so much project-level development going on > that the project group can't wait around for a global SOA intiative, > if one even exists. So what advice would you give them? I would > say Paul's advice, along with his 4 point clarification, is a good > start. In a nutshell, define common messages as the basis of the > interface for an endpoint, using XML Schema, with an eye towards > using or building a canonical model (e.g. a "Customer"). Without > this guidance, you'll end up with JBOWS with little or no reuse and > agility, and you'll add to the chaos that will have to be fixed > eventually. > > -Kirstan > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
