Printer Services Mail Archive: RE: PS> RE: PWG-ANNOUNCE>

RE: PS> RE: PWG-ANNOUNCE> Print Services Web Page

From: McDonald, Ira (imcdonald@sharplabs.com)
Date: Tue Feb 25 2003 - 18:43:38 EST

  • Next message: McDonald, Ira: "RE: PS> RE: PWG-ANNOUNCE> Print Services Web Page"

    Hi,

    Actually, PSI is what you want. Several vendors have working PSI
    prototypes. Products can be expected in the quite near future.

    PSI itself does not do discovery.

    But PSI specifies (in some detail) how to do device discovery
    by wireless (BlueTooth), by SSDP (part of Microsoft's UPnP),
    by SLPv2 (RFC 2608), by LDAPv3 (RFC 2251), by DNS-SD (RFC 2782),
    or by UDDI (Web Services) in the "PSI Developers Guide" in
    section 6 'Print Service Discovery and Deployment'.

    ftp://ftp.pwg.org/pub/pwg/ps/psi-devl-latest.pdf
    (most recently v0.95a 13 January 2003)

    PSI is intended to be (relatively) lightweight. It is a series
    of WSDL (Web Services Definition Language) SOAP (Simple Object
    Access Protocol) operations, using the attributes defined in the
    common XML schema of the IEEE/ISTO PWG Semantic Model.

    I hope this helps.

    Cheers,
    - Ira McDonald, contributing PSI editor
      High North Inc

    -----Original Message-----
    From: Clem McDonald [mailto:cmcdonald@regenstrief.org]
    Sent: Monday, February 24, 2003 4:18 PM
    To: imcdonald@sharplabs.com
    Subject: Re: PS> RE: PWG-ANNOUNCE> Print Services Web Page

    I have just discovered the PSI working group activity. We have
    developed a network that includes all of the major hospitals in
    Indianapolis and captures in a secure way clinical information from all
    of these institutions. We are working on ways to provide physician
    access to the data they can properly see, via a wireless PDA (or cell
    phone) using technology like the Black Berry.

    For a smallish prespecified list of patients , this system will work
    very well because the cellular system can push the data to the PDA. The
    physician will face different issues when he/she wants to look at a
    broad spectrum of information about a patient that had not been
    pre-defined. It will likely be slow to load (pull) information on
    demand about a specific pattient. Furthermore ,even for patients whose
    data has been pushed to the PDA- some kinds of informatio (E.g EKG
    tracings and Chest xrays) will not fit very well, and in many cases the
    physciain would rather review the informaiton on paper. Hence the need
    for a printer connection. I read the plan for PSI written (I think in
    2000). The diagram showing acellular phone or cellular connected PDA
    sending a URL to a network for printing is exactly what we need. I
    gather that PSI is just being proposed so there is not likely to be any
    way for us to take advantage of it.

    However we don't need the full boat. What we would love to have , would
    be for a PDA/cellular to be able to discover the Internet address (or
    URL) of the printer near by. (Ideally this would be by probing it
    through infrared or blue tooth but doubt that is feasible), and then
    send a URL from the network to it.

    Do you know of any implementation of the capabilty that would allow
    discovery of printer locations and then directing something accross a
    wider area network to that printer. ( Lots of issues and problemS)

    Would love to explore anything that was out there that was lightweight

    Many thanks

    --
    Director, Regenstrief Institute
    Regenstrief Professor of Medical Informatics
    Distinguished Professor of Medicine
    Indiana University School of Medicine
    1050 Wishard Blvd  RG5
    Indianapolis  IN  46202-2872
    Phone:  317/630-7070
    Fax:  317/630-6962
    URL:  www.regenstrief.org
    



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