RE: [tequila/sls] comments on SLS scope

From: Bandler, Paul (Paul.Bandler@compaq.com)
Date: Sun Apr 01 2001 - 11:40:30 CEST

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    Panos,

    Thank you for your reply.

    Could you help me understand the issues in a little more depth please? I am
    just trying to understand the issues - not challenge them as I am only just
    coming up to speed on these topics. For example, what are 'B-C type
    communications' (Business to Communications Service Provider?), and what are
    its unique requirements that make ebXML's reliable message transport
    unsuited to it? i.e. what are the intrinsic differences between generic B2B
    needs and SLA/SLS needs?

    As I understand it, ebXML is not yet cast in stone, so is it not technically
    feasible to modify/enhance ebXML to meet the SLA/SLS needs?

    From a purely pragmatic perspective, it seems that many of the B2B platform
    vendors are working with the ebXML effort, so may it in future be possible
    to procure interoperable (or at least more easily interoperable) trading
    platforms - would not Service Providers like to be able to make use of as
    much Commercial Off-The-Shelf applications for their SLA/SLS systems?

    regards,

    Paul
    -----Original Message-----
    From: Panos Georgatsos [mailto:pgeorgat@egreta.com]
    Sent: 31 March 2001 23:05
    To: Bandler, Paul
    Cc: 'sls@ist-tequila.org'
    Subject: Re: [tequila/sls] comments on SLS scope

    Hello,

    Bandler, Paul wrote:

    > Forgive my intrusion on this discussion (I am normally a silent and
    > infrequent monitor of this list), but if I understand correctly, the
    > discussion is about how to go about producing a standardized framework for
    > negotiating SLS which will lead to contractual SLA's between service
    > providers and customers right? Also you're considering the role of
    > modelling to represent a semantic model of the universe of discourse and
    > then possibly using XML as a data exchange and possibly storage format....
    > Well, in that case is it not reasonable to consider SLS/SLA negotiation as
    a
    > vertical market application of any eCommerce transaction and align with
    the
    > ebXML (http://www.ebxml.org/index.htm) efforts to create a standard
    > approach, framework and communication infrastructure for eCommerce?

    Your proposal indeed makes sense and it should be sought for.

     ebXML has been considered for providing the underlying reliable message
    exchange service required for exchanging the service negotiation messages
    between a customer and a provider. In fact, we have specified a service
    negotiation protocol (SrNP) for negotiating the TEQUILA SLSs, where we have
    specified exactly the interfaces to a reliable message exchange service
    (such as
    ebXML). However, I think, the current ebXML specifications are not suitable
    for
    B-C type of communication, as it is the case in SLS negotiation. Therefore,
    in
    the current implementation of SrNP, we have specified and developed a
    message
    exchange service (ala ebXML, also capable for B-C communication) based on
    http
    or on tcp.

    > regards,
    >
    > Paul Bandler

     Panos

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