RE: [soa-rm] Re: Autonomous Services?

["Schuldt, Ron L" <ron.l.schuldt@lmco.com>]

Sameer will correct me if I'm wrong, but I believe that his intent was
to include the notion of central metadata within a "Reference
Architecture" not the Reference Model. Appendix B is the place where
example use cases would be defined. I suspect that Sameer might be
willing to submit an example use case.

Ron Schuldt
Senior Staff Systems Architect
Lockheed Martin Enterprise Information Systems
11757 W. Ken Caryl Ave.
#F521 Mail Point DC5694
Littleton, CO 80127
303-977-1414
ron.l.schuldt@lmco.com
 

-----Original Message-----
From: Smith, Martin [mailto:Martin.Smith@DHS.GOV]
Sent: Friday, April 29, 2005 4:19 PM
To: Sharma, Sameer; Duane Nickull; john@crossconnections.ws
Cc: ebSOA OASIS TC; soa-rm@lists.oasis-open.org
Subject: RE: [soa-rm] Re: Autonomous Services?


Sameer - - 

Let me practice being Matt <g>:

The term " 'central' metadata" presumes a specific implementation
strategy and should not be in the RM.  Perhaps "metadata associated with
the service should be available in the environment."  Now in my example
SOA for Appendix B, I'll probably show a UDDI services directory, or
maybe a combo registry/repository that can in fact store all the
description metadata.

Martin



-----Original Message-----
From: Sharma, Sameer [mailto:sameer.sharma@lmco.com] 
Sent: Friday, April 29, 2005 2:16 PM
To: Smith, Martin; Duane Nickull; john@crossconnections.ws
Cc: ebSOA OASIS TC; soa-rm@lists.oasis-open.org
Subject: RE: [soa-rm] Re: Autonomous Services?


My feeling is that some of what you are alluding to might be covered by
UDDI,
however as is happening in an instance of SOA deployment that I am
involved
in - UDDI by itself is not going to be sufficient to express all the
metadata
that is needed for a client to successfully and contextually interpret
all
that a Web Service does.

My attempted solution is to capture this additional metadata by
leveraging
central metadata services of my enterprise. I guess what I am saying is
that
the concept of "central metadata" might be a valid candidate as a
component of
the Reference Architecture we are considering.

Since I was unable to participate in the F2F, (due to some last minute
commitments that I got called into), if this topic was discussed, please
accept my apologies for bringing it up again.

Thanks!



L
  Sameer Sharma
    Principal Applications Architect
    Lockheed Martin Corporation
    Chief Technology Office (CTO)
    12506 Lake Underhill Road - MP 166
    Orlando, FL-32825
    Tel: (407) 306 5640
    Fax:(407) 306 1392

-----Original Message-----
From: Smith, Martin [mailto:Martin.Smith@DHS.GOV]
Sent: Friday, April 29, 2005 1:38 PM
To: Duane Nickull; john@crossconnections.ws
Cc: ebSOA OASIS TC; soa-rm@lists.oasis-open.org
Subject: RE: [soa-rm] Re: Autonomous Services?

Folks - -

On my way home from N'awlins Wed night, I had a thought on this
discussion.

I think we expect services in an SOA to be independent of the kind of
shared contextual knowledge we usually presume within a local computing
environment. We expect that the requesting service will be able to
obtain all the info it needs to use the responding service successfully
by processing the responding service's description metadata.  I do think
this is a core characteristic of SOA services.

I'm not suggesting we reinstate the use of the word "autonomous" as a
handle for this concept since it demonstrably caused confusion at the
f2f.  If we need a handle, perhaps "self-sufficient" or
"self-documenting" or "introspective" (naaah - forget that one.)

Martin




-----Original Message-----
From: Duane Nickull [mailto:dnickull@adobe.com]
Sent: Friday, April 29, 2005 12:43 PM
To: john@crossconnections.ws
Cc: ebSOA OASIS TC; soa-rm@lists.oasis-open.org
Subject: [soa-rm] Re: Autonomous Services?

We discussed and the submitter withdrew the submission pending
clarification on exactly what is meant by Autonomous nature WRT
services.  It may be re-submitted and probably will however we do not
have consensus on it at present.

Duane

john c hardin wrote:

> Duane and SOA-RM group -
> Can someone enlighten the members of the eb-soa group regarding a
> description of Autonomous Services? Any resulting conversations from
> the meetings this week, on the subject of Autonomous Services would be

> good also.
>
> thanks
> john
>

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