Take a look at the following documents at OASIS - http://www.oasis-open.org/committees/download.php/19679/soa-rm-cs.pdf <http://www.google.com/url?sa=t&ct=res&cd=2&url=http%3A%2F%2Fwww.oasis-open.org%2Fcommittees%2Fdownload.php%2F19679%2Fsoa-rm-cs.pdf&ei=tqhOSPqUIo2uoQS6sYA3&usg=AFQjCNHANxUN9auHo3ElI1ir2yOHIaS1dg&sig2=yw5XtsTMJljK4KdbtyRJ7Q> http://www.oasis-open.org/committees/download.php/15071/A%20methodology%20for%20Service%20Architectures%201%202%204%20-%20OASIS%20Contribution.pdf Those documents will help answer some of your questions - however the questions you are asking are starting at the "How" or implementation, that would be better answered if a business driven or top-down approach drove your SOA effort. - Amit
If you are not the intended recipient of this message (including attachments), or if you have received this message in error, immediately notify us and delete it and any attachments. If you no longer wish to receive e-mail from Edward Jones, please send this request to [EMAIL PROTECTED] You must include the e-mail address that you wish not to receive e-mail communications. For important additional information related to this e-mail, visit www.edwardjones.com/US_email_disclosure ________________________________ From: service-orientated-architecture@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dey, Santanu Sent: Friday, June 06, 2008 10:07 AM To: service-orientated-architecture@yahoogroups.com Subject: Re: [service-orientated-architecture] Re: Definition of SOA I have struggled to define a "service" in the first place.. What is a service? We all know SOA and WS are not the same... Must a service be machine discoverable? Must it follow WS*? How decoupled and atomic should the services be? how important are service life cycle management, service operations management aspects? Then there are questions specific to quintessential SOA characteristics.... What do you think at the minimum should be followed? Is service registry a must? Do you need to define a Common Message Format? Should the architecture support the capability to compose and orchestrate services? is a BPM layer essential? is a Service Bus needed ? how important is service virtualization? Which standards to be followed? without having clear answers to many questions questions such as above we can not unambiguously define SOA. On Thu, Jun 5, 2008 at 10:41 PM, Rob Eamon <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > wrote: +1 -Rob --- In service-orientated-architecture@yahoogroups.com <mailto:service-orientated-architecture%40yahoogroups.com> , Michael Poulin <[EMAIL PROTECTED]> wrote: > > I would disagree with "üA service-oriented architecture is essentially a collection of services"; it is not an architecture. > > - Michael
