Re: [regrep] Direct Data Exchange vs. SOA

["David RR Webber" <david@drrw.info>]

Joe,

There's also a huge difference in the accountablity and
traceability models, not to mention storage policies,
archival and all the backend.

Then you have to integrate out to in - instead of
in to out - in terms of linking backend systems
to the external service.

DW.
----- Original Message ----- 
From: "Chiusano Joseph" <chiusano_joseph@bah.com>
To: <regrep@lists.oasis-open.org>
Sent: Wednesday, February 11, 2004 10:37 AM
Subject: [regrep] Direct Data Exchange vs. SOA


> I have an inquiry that is not directly related to our mission here, but
> I hope to get some good insight in response please:
>
> Let's say we have a purchase order process between trading partners (PO
> sent, Invoice received). There are (for the purposes of this inquiry) 2
> possible ways to handle this process:
>
> (1) Direct Data Exchange (create XML documents based on a common schema,
> and exchange them between trading partners)
>
> (2) SOA (have a purchase order/invoice shared service that is discovered
> in a registry, etc.)
>
> My inquiry is: What would drive an organization to use one approach or
> the other, from both a business and technical standpoint? For instance,
> would "critical mass of services and/or trading partners" be a driver
> for SOA vs. direct data exchange?
>
> Thanks in advance,
> Joe
>
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