Certainly, SOA infrastructure is also very important and deserve its own pattrens... of allowed to use existing pattrent w/o claimimh them SOA Pattrens. In my opinion, the book title is a bit misleading; it is in the same way as Sun claimed Facade as the J2EE Pattren.
- Michael ________________________________ From: David Chappell <[email protected]> To: [email protected] Sent: Friday, January 16, 2009 4:42:04 PM Subject: RE: [service-orientated-architecture] Re: Vaughan reviews Erl's Tome >From what I have seen of SOA Design Patterns, it doesn't just focus on your view of what should be strictly qualified as service orientation, it also addresses what a SOA needs in order to be complete. Patterns allow architects to productively discuss architecture and make reference to named approaches to problems with well understood, documented solutions. This lets them focus on how the pieces fit together without wasting time revisiting what those patterns do. Being able to draw a box and label it "service inventory" is just as legitimate as any other elements of your architecture. Dave ________________________________ From: Michael Poulin [mailto:m3poulin@ yahoo.com] Sent: Friday, January 16, 2009 5:50 AM To: service-orientated- architecture@ yahoogroups. com Subject: Re: [service-orientated -architecture] Re: Vaughan reviews Erl's Tome Yes, "SOA: Principles of Service Design" is a great book, I agree. It had to be more technical than Steve's book because the latter targeted wider understanding of the services based on the SO principles. However, Erl's book was written in 2006/07 and published on July 28, 2007, i.e. 6 months after OASIS SOA RM standard was issued. SOA Design Patterns is published in 2009, when OASIS SOA RM is known for long enough to understand (accept or deny) that Service Inventory is not a pattern of service orientation, it is a pattern of technology inventory, IMO. - Michael ________________________________ From: Kirstan Vandersluis <kirs...@xaware. com> To: service-orientated- architecture@ yahoogroups. com Sent: Friday, January 16, 2009 12:10:15 AM Subject: [service-orientated -architecture] Re: Vaughan reviews Erl's Tome --- In service-orientated- architecture@ yahoogroups. com, Michael Poulin <m3pou...@.. .> wrote: > > ... > I have a feeling that represented SOA Design Patterns are not really patterns of SO design but any patterns where Web Services were or may be used. This means that SOA obfuscation with Web Services continues... I've read Erl's previous book, SOA: Principles of Service Design, and was impressed with it's well-rounded treatment of issues in the design of services. Erl's definition of a service is more technical in nature than Steve Jones' in his book, but it is far from a cookbook for mere web services. In fact, I would highly recommend it for anybody implementing services. Personally, I'm interested in giving Erl's new book a read also, if I can ever find the time! -Kirstan
