> definitions of SOA are currently broadening to the point where they
> are not particularly useful any more. (01)
The same debate raged in the 90's as to the 'real' meaning of 'object'.
Of course the term is just as ambigious in everyday life where the term
originated and where it means quite different things at different levels
of granularity (subatomic, atomic, molecular, biological, astronomical,
etc). (02)
Seems to me we could add a lot of clarity by specifying what level of
granularity "service" is being applied to. The article applies it at the
enterprise level so service = an organizational capabilitiy. (03)
Several levels below that is the application level, where it means a
network-resident computer program; the meaning most technical folk have
in mind. Below that are the POJO objects from which applications are
usually composed these days (locally accessible objects that are not on
the network). (04)
PS: I once tried to get traction on applying hardware engineering
terminology in software but that never caught on. Gate-level objects =
plain C functions, chip-level = C++/Java objects, card-level = SOA
services, and so forth. So it goes... (05)
Joshua Lieberman wrote:
> Dr. Harding,
>
> Your interest in feedback for an SOA ontology is appreciated, but taking
> a quick look at the definition of SOA on which it is based, I have to
> raise the question why it includes only two of the three legs on which
> service-based architecture was developed. The role of service discovery,
> trading, and matching is conspicuously absent. Indeed, this makes the
> ontology perfectly suitable for modeling any application stovepipe and
> fails to explain why efforts at interoperability, in fact at the
> information-hiding aspects of services at all, are important.
>
> It would certainly be very interesting to learn whether this omission is
> deliberate or represents an intermediate stage of ontology development.
> It might also be a good topic for SICoP discussion. There is some
> question whether definitions of SOA are currently broadening to the
> point where they are not particularly useful any more.
>
> Regards,
>
> Joshua Lieberman
>
> Principal, Traverse Technologies Inc.
> mailto:jlieberman@xxxxxxxxxxxxxxxxxxxxxxxx
> tel +1 (617) 395-7766
> fax: +1 (815) 717-981
>
>
> On Dec 21, 2006, at 5:16 AM, Chris Harding wrote:
>
>> Hello -
>>
>> The Open Group is developing a formal ontology for SOA, and we have
>> now reached the stage where we have a draft that we would like to
>> share with other organizations that are working on SOA, in order to
>> obtain feedback and comment. We believe that a common ontology for
>> SOA can be a very valuable resource for everyone to use, and we
>> therefore wish to receive input from as wide a constituency as possible.
>>
>> I think that this will be of interest to the SICoP as well as the
>> SOACoP, and we would appreciate input from both groups. This call for
>> input is going to both lists, and we would appreciate comments from
>> all members of them, either directly to me (c.harding@xxxxxxxxxxxxx)
>> or to one or both of the lists. (Comments to both lists will generate
>> the best debate!)
>>
>> The current draft is draft 0.6 and is available from our web page at
>> http://www.opengroup.org/projects/soa-ontology/ together with some
>> simple example ontologies that import it. Perhaps the best starting
>> point is the presentation at
>> http://www.opengroup.org/projects/soa-ontology/doc.tpl?gdid=12153
>> which I delivered at the recent OMG meeting. This explains the
>> ontology and how we think it will be used.
>>
>> We will produce a new draft in January, and will address the comments
>> in that draft.
>>
>> All the best for Christmas and the New Year!
>>
>> Regards,
>>
>> Chris
>> +++++
>>
>> ========================================================================
>> Dr. Christopher J. Harding
>> Forum Director for SOA and Semantic Interoperability
>> THE OPEN GROUP
>> Thames Tower, 37-45 Station Road, Reading RG1 1LX, UK
>> Mailto:c.harding@xxxxxxxxxxxxx Phone (mobile): +44 774 063 1520
>> http://www.opengroup.org
>>
>> Enterprise Architecture Practitioners Conference
>> Marriott Mission Valley, San Diego, CA, January 29 - 31, 2007
>> Member Meetings: January 29 - February 2, 2007
>>
><http://www.opengroup.org/sandiego2007/>http://www.opengroup.org/sandiego2007/
>>
>> ========================================================================
>> TOGAF is a trademark of The Open Group
>>
>> _________________________________________________________________
>> Message Archives: http://colab.cim3.net/forum/sicop-forum/
>> Shared Files: http://colab.cim3.net/file/work/SICoP/
>> Community Portal: http://colab.cim3.net/
>> To Post: mailto:sicop-forum@xxxxxxxxxxxxxx
>> Community Wiki: http://colab.cim3.net/cgi-bin/wiki.pl?SICoP
>
>
>
> ------------------------------------------------------------------------
>
> _________________________________________________________________
> Message Archives: http://colab.cim3.net/forum/sicop-forum/
> Shared Files: http://colab.cim3.net/file/work/SICoP/
> Community Portal: http://colab.cim3.net/
> To Post: mailto:sicop-forum@xxxxxxxxxxxxxx
> Community Wiki: http://colab.cim3.net/cgi-bin/wiki.pl?SICoP (06)
bcox.vcf
Description: Vcard
_________________________________________________________________
Message Archives: http://colab.cim3.net/forum/sicop-forum/
Shared Files: http://colab.cim3.net/file/work/SICoP/
Community Portal: http://colab.cim3.net/
To Post: mailto:sicop-forum@xxxxxxxxxxxxxx
Community Wiki: http://colab.cim3.net/cgi-bin/wiki.pl?SICoP (01)
|