Printer Services Mail Archive: PS> Minutes of PSI telecon on

PS> Minutes of PSI telecon on 6 July

From: McDonald, Ira (imcdonald@sharplabs.com)
Date: Wed Jul 07 2004 - 14:20:19 EDT

  • Next message: Masanori ITOH: "PS> Re^4: [Std Print System Events namespace]"

    Hi,

    Comments or corrections are welcome.

    (1) target namespace will be added to Events schema
        of PWG Semantic Model/1.0, e.g.,

    <xsd:schema targetNamespace="http://www.pwg.org/schemas/sm/1.0/"
      xmlns:xsd="http://www.w3.org/2001/XMLSchema"
      xmlns="http://www.pwg.org/schemas/sm/1.0/">

    (2) UnsupportedElements will be corrected to be defined
        the same as PWG SM/1.0 schema and IPP/1.1 (RFC 2911)
        (consistent semantics and interworking of gateways)

    (3) Jerry Thrasher's issues in latest draft:

        3.1 interfaceIdentifier will be defined in PSI spec,
            to avoid normative dependency on WSDL

        3.2 callbackInterval will be defined in to PSI spec,
            to avoid normative dependency on IPP GET
            (and conformance requirement vis-a-vis Job History
            time will be removed, due to weak rationale)

        3.3 eventNumber parameter SHOULD be renamed (to align
            with WIMS and IPP) to notifySequenceNumber

    ** DAVE ** I just found a bug in our definition below **

            Since SendXxxNotification methods can transfer
            one or _more_ events in a single notification,
            the correct semantic is that the renamed parameter
            is the number of this notification message (NOT
            the number of one of the events in the message).

        3.4 eventID in section 5.6.11 will replaced with the
            correct notifySequenceNumber
        
        3.5 normative references
            - moved WS-Addressing and WS-Security to informative
            - kept W3C Notes on WSDL/1.1 and SOAP/1.1 in the
              normative references and will add the phrase
              "defacto industry standard"

              (because all existing tools only support these
              defacto standards - very little support for SOAP/1.2
              has been shipped or deployed - no support for the
              future _incompatible_ WSDL/2.0 has been shipped)

        3.6 documentFilterElements will be marked OPTIONAL

        3.7 all of Masanori Itoh's suggested changes were also
            made by Jerry Thrasher and approved in the telecon

    4. Ira McDonald's changes for events:

        4.1 JobEvents definition will be corrected in
            FetchNextJob
        
        4.2 callbackInterval - see 3.2 above
            FetchNextJob

        4.3 DocumentEvents definition will be corrected in
            FetchNextDocumentByPull
      
        4.4 callbackInterval - see 3.2 above
            FetchNextDocumentByPull

        4.5 DocumentEvents - see 4.3 above
            FetchNextDocumentByValue
      
        4.6 callbackInterval - see 3.2 above
            FetchNextDocumentByValue
     
        4.7 JobEvents (missing parameter) will be added to
            SendJobNotification

        4.8 DocumentEvents (missing parameter) will be added to
            SendDocumentNotifications

        4.9 PrinterEvents will be replaced with NotifyEvents
            (to allow subscription to all classes of events) in
            RegisterTargetDevice
     
        4.10 SubunitEvents and VendorEvents (missing parameters)
            will be added (in addition to existing PrinterEvents) to
            SendTargetDeviceNotification
            (to add support for detailed Subunit events such as
              'InputMediaSupplyLow' and Vendor events from different
            non-Printer objects)

    (5) ** Significant Change **

        5.1 Entire current Std Print System Events spec will be
            incorporated as an appendix into the PSI spec
            (to avoid new normative dependencies for PSI)

        5.2 At some future date, a PWG Std Imaging System Events
            spec may be developed as a PWG 'dictionary' standard

    (6) ** Last Call **
        - PSI/1.0 and Events schema will enter PWG 'last call'
          no later than 26 July, to complete at the PWG Plenary
          on Wednesday 18 August in Montreal

    Cheers,
    - Ira

    Ira McDonald (Musician / Software Architect)
    Blue Roof Music / High North Inc
    PO Box 221 Grand Marais, MI 49839
    phone: +1-906-494-2434
    email: imcdonald@sharplabs.com

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