Hi Steve,

I believe, I am working in the same direction (  http://webservices.sys-con.com/read/219016.htm and "Versioning for SOA Service" scheduled for publishing in July, 2006, in SOAWebServices Journal).

The concept I am trying to promote is that SOA implementation has to follow the principle of business centric and agile. For example, a SOA client (built in whatever technology including Web Services) views a SOA Service as single entity with compound version, i.e. the version representing the nature of the service instead of versions of endpoint, interface, executable component and so on. The same, I think, relates to the SOA Service's SLA which is not a Web Service SLA but includes much more contract on the service provider behavior behind an interface (such as Web Service)

I will read your links. Thanks a lot and, please, provide more.

- Michael Poulin


Steve Jones <[EMAIL PROTECTED]> wrote:
I thought I'd start a thread aimed at the other end of the scale from
REST v SOAP v CSV :)

What I was wondering is if there are any other people out there using
Service as a concept to model the business, rather than seeing it as a
implementation approach. The methodology paper
(http://www.oasis-open.org/committees/download.php/15071/A%20methodology%20for%20Service%20Architectures%201%202%204%20-%20OASIS%20Contribution.pdf)
I released last year was specifically aimed at this area and I've had
some decent feedback around the concepts and approach, mainly from
people working at the enterprise level.

I know that IBM's CBM
(http://www-1.ibm.com/services/us/bcs/html/bcs_componentmodeling.html)
approach takes a similar view, if a little bit bigger in scale and
complexity.

The theory behind this sort of work is that OO was important not
because of the technology change but because of the mental shift it
made in IT. SOA is important for a similar reason, but rather than
effecting the implementation of system internals it impacts the actual
definition of the enterprise and the systems themselves. Historically
IT has failed to deliver in no small part due to an obsession with the
implementation mechanism (technology) rather than on the problems and
challenges from the perspective of the business.



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