Re: [soa-rm-ra] OO vs. SOA and what goes into a service

On Jan 22, 2008, at 11:05 PM, Danny Thornton wrote:

Talking in feed speak, the service is being fed the
information model.

Danny

--- Ken Laskey <klaskey@mitre.org> wrote:

I'm not talking implementation (SOA can use OO
principles to develop
the code) but general mindset. We once agreed that
asking "what is a
service?" is similar to asking "what is an object?"
because the
answer is it could be anything that fits your
problem. My thought is
a service is not necessarily a good object that you
operate on but
more like an operation that you may be feeding
objects to.

Again, this is all at the concept level, no
implementation.

Ken

On Jan 22, 2008, at 6:45 PM, Duane Nickull wrote:

In SOA, is it necessary that there is an object

behind the

service? We talk to the interface (service)and

don’t really care

what is behind it. Assuming there is an object

could be errant and

architecturally un-elegant.

Duane

On 1/22/08 3:05 PM, "Ken Laskey"

<klaskey@mitre.org> wrote:

Is it fair (or at least not too distorted) to say

that with OO we

define an object and look for what we can do to

it (i.e. its

methods) while with SOA we identify what we want

to do (i.e.

business functions) and then, if appropriate,

look for objects to

do it to?

--

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-----
Ken Laskey
MITRE Corporation, M/S H305 phone: 703-983-7934
7151 Colshire Drive fax:
703-983-1379
McLean VA 22102-7508

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Ken Laskey

MITRE Corporation, M/S H305 phone: 703-983-7934

7151 Colshire Drive fax: 703-983-1379

McLean VA 22102-7508

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