Subject: RE: initial draft of CPP-CPA Specification
» -----Original Message----- » From: Martin W Sachs [mailto:mwsachs@us.ibm.com] » Sent: 20 January 2001 00:37 » To: Stefano POGLIANI » Cc: ebxml-tp@lists.ebxml.org; ebxml-ta-security@lists.ebxml.org » Subject: RE: initial draft of CPP-CPA Specification » » » » Stefano, » » I mostly agree with everything in this email. I have embedded a couple of » comments below. Marty, I am including in this reply ONLY the relevant parts for further discussion. Best regards and have a nice week. /Stefano » » Line 334: » are you meaning that, in your wording, "business application functions" is the » merge of the ebXML-middleware (which is aware of the collaboration) and of » the actual back-end systems (the legacy applications currently used by the » customer) ? » If this is true, I have the following comments: » "The Collaboration-Protocol layer is the interface between the » CPA-defined business transactions and the business-application functions » that actually perform the business transactions" » The "business transactions" are actually performed by the legacy applications, » aren't they? » » MWS: True. However there will be new applications defined by the BP model and those » won't need any bridge between the collaboration function and the higher level application » function. Do you mean new applications that will be developed as already "ebXML compliant" ? I do not understand how new applications will be "defined by the BP model", though... » » The "CPA-defined business transactions" are the choreography » of the actual business transactions that are executed by the legacy, » am I wrong? » » MWS: This is what the Specification Schema will provide, so I agree. » » So, I interpreted the "Collaboration-Protocol layer" as the layer which is in » charge of "instructing" the legacy about which business transaction should » be executed. In my interpretation, this layer is dinstinct from the legacy. » » MWS: I agree for legacy applications. The bridge to the legacy is where the » choreography will be executed. » » Marty, sorry but at this point I do not understand which is the final answer to the original question which was : I would change "...and the business-application functions..." into "...and the back-end functions..." » Regards, » Marty » » ****************************************************************** » ******************* » » Martin W. Sachs » IBM T. J. Watson Research Center » P. O. B. 704 » Yorktown Hts, NY 10598 » 914-784-7287; IBM tie line 863-7287 » Notes address: Martin W Sachs/Watson/IBM » Internet address: mwsachs @ us.ibm.com » ****************************************************************** » ******************* »
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