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
This archive was generated by hypermail 2b29 : Tue Feb 25 2003 - 18:44:04 EST