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Subject: Re: [regrep] Direct Data Exchange vs. SOA
>>>Chiusano: 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? >>> In the discussion, suggest we also recognize and account for the fact that in (1) and (2) that the business process definition may guide the exchange regardless of if via a service or via the document exchange. Thanks.