Response to: "Microsoft technical comment: Develop interoperable approachnotspecific to SCA for callbacks"

[Simon Holdsworth <simon_holdsworth@uk.ibm.com>]

This is a formal response of the OASIS
SCA Bindings technical committee to the "Microsoft technical comment:
Develop interoperable approach not specific to SCA for callbacks"
which was sent to the SCA Bindings public comments list.

This is the agreed response of the technical committee as a whole and was
approved unanimously at the meeting of
the TC which took place on September 3rd 2009. 

------------------------ 

Thanks for taking the time to review
the specification, sending your public review comment [1], and for sharing
you thoughts. They are much appreciated.

The public review comment at [1] suggests
that: "... the work of defining a Web Service callback standard is
best done by the appropriate Web Services working groups in OASIS in the
broadest scope possible. This will foster a general interoperable mechanism
for all architectures and programming models that use standard Web Services
protocols on the wire."

There is a misunderstanding on the commenter's
part that the SCA Web Services Binding defines a (generally applicable)
"Web Service callback standard." The binding defines an *SCA*
Web service callback protocol standard that provides the wire-level details
for implementing an SCA callback defined by the SCA Assembly specification
[2]. [2] defines a callback mechanism that satisfies the needs of the SCA
Assembly model and is not meant to satisfy general purpose callback requirements
with a broadest scope possible. Furthermore, there does not exist any other
OASIS Web Services Working Group or a Technical Committee that specializes
in Web Services that has callbacks in its charter scope. This TC *does*
specialize in Web services and is chartered to produce a Web services binding
for SCA.

This TC does believe that it should
define an interoperable Web services protocol that implements SCA callback
and it has done that. It does not believe that it is in the scope or interest
of this TC to define a callback protocol for all architectures and programming
models.

WRT your comment about SCA Assembly
specification Section 7.4, we respectfully request you to share that feedback
with the SCA Assembly TC [3], as the SCA Assembly specification is not
owned by and is not in scope for this TC.

[1] http://lists.oasis-open.org/archives/sca-bindings-comment/200908/msg00000.html
[2] http://docs.oasis-open.org/opencsa/sca-assembly/sca-assembly-1.1-spec-cd03.pdf
[3] http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=sca-assembly

--------------------------

Follow-up comments are welcome. 

Regards, Simon

Simon Holdsworth
STSM, SCA Bindings Architect; Master Inventor; OASIS SCA Bindings TC Chair
MP 211, IBM UK Labs, Hursley Park, Winchester SO21 2JN, UK
Tel +44-1962-815059 (Internal 245059) Fax +44-1962-816898
Internet - Simon_Holdsworth@uk.ibm.com

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