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Subject: RE: [wsia][wsia-requirements][E922]
Greg, Web Services as a technology is an enabler for integrating legacy
applications and such enablement will need the support of a web services
aware sw infrastructure.
However, given our WSIA efforts, as long as we assume support for WSDL
described services, WSIA will be able to provide a interactive facade
around existing Web Services. We need to be cautious of scope creep here.
In our definition of Consumer and Producer we assume a basic WSDL Web
Service. It is the implementation of that core WSDL service that will
address integration with legacy applications. Our WSIA effort is to enable
the extending of those core application services into the UI space by
describing an interactive language.
I think this all comes down to the question per application...at what point
do we need an interactive description? For example a legacy application may
be extended to the web thru an intermediary in which case WSDL will be used
to integrate the intermediary with the legacy app and WSIA will be used
between the intermediary(now the producer) and its respective consumer (ie:
browser, client app, whatever).
Does anyone know where this requirement came from? maybe that will help use
determine importance.
Dan Gisolfi
Greg Giles <ggiles@cisco.com> on 05/06/2002 01:23:03 PM
To: wsia@lists.oasis-open.org
cc:
Subject: RE: [wsia][wsia-requirements][E922]
Dan, I can see your perspective, but consider the consequences if we
produce
a specification that prevents us from integrating with legacy applications.
Although we are in the domain of web services, the world will not become
fully WSIA aware for several years, and many of the implementations will be
producers exposing existing applications.
Without the ability to integrate the adoption rate will be low, which will
lead us down the path to obscurity.
I support Eilon's reworded statement, though I'm not sure that
'infrastructure' adds anything to the requirement.
Regards
Greg