attachment

Ira, Thanks for the draft for section 3.1.  Just in case we have time to go over the text provided by you, I have added it into the last updated Scan Service draft (with date 20070918). I also did some editorial reformating of the list of processing flow steps and design requirements, so that the way they are listed are more consistent. The latest updated Scan Service draft is available as : The version with revision marks: ftp://ftp.pwg.org/pub/pwg/mfd/wd/wd-mfdscan10-20070921_rev.pdf and ftp://ftp.pwg.org/pub/pwg/mfd/wd/wd-mfdscan10-20070921_rev.doc The version without revision marks: ftp://ftp.pwg.org/pub/pwg/mfd/wd/wd-mfdscan10-20070921.pdf and ftp://ftp.pwg.org/pub/pwg/mfd/wd/wd-mfdscan10-20070921.doc -Nancy <table width=100%> <tr valign=top> <td width=40%>"McDonald, Ira" <imcdonald@sharplabs.com> Sent by: owner-mfd@pwg.org 09/20/2007 06:09 PM <td width=59%> <table width=100%> <tr valign=top> <td> <div align=right>To</div> <td><mfd@pwg.org> <tr valign=top> <td> <div align=right>cc</div> <td> <tr valign=top> <td> <div align=right>Subject</div> <td>MFD> Rationale for Scan Service Interface</table> <table> <tr valign=top> <td> <td></table> </table> <tt>Hi, </tt> <tt>Nancy - for inclusion as section 3.1 in your next draft of SSI after the Montreal meeting (note slightly changed title of section).  Modelled on the PSI and Counter MIB rationale sections. </tt> <tt>Cheers, - Ira </tt> <tt>Ira McDonald (Musician / Software Architect) Chair - Linux Foundation Open Printing WG Blue Roof Music / High North Inc PO Box 221  Grand Marais, MI  49839 phone: +1-906-494-2434 email: imcdonald@sharplabs.com </tt> <tt>------------------------------------------------ 3.1  Rationale for Scan Service Interface </tt> <tt>The PWG Imaging System Counters specification [PWG5106.1] defines: </tt> <tt>(a) A standard set of Imaging Services for Imaging Systems. </tt> <tt>(b) A set of use models for monitoring and billing, management, and accounting for these Imaging Services.</tt> <tt>(c) A set of abstract counters for these Imaging Services. requirements.</tt> <tt>(d) A set of conformance requirements for implementations of these abstract counters in Imaging Systems.</tt> <tt>The IPP/1.1 Model and Semantics [RFC2911] and the PWG Print Service Interface [PWG5104.2] each define: </tt> <tt>(a) Models of Print Services, Print Devices, and Print Jobs. </tt> <tt>(b) Sets of abstract operations and elements for Print Services. </tt> <tt>(c) Sets of abstract operations and elements for Print Jobs. </tt> <tt>(d) Sets of conformance requirements for implementations of these abstract operations and elements in Print Services and Print Jobs.</tt> <tt>The IPP/1.1 Encoding and Transport [RFC2910] and the PWG Print Service Interface [PWG5104.2] each define: </tt> <tt>(a) Concrete protocol stacks for IPP/1.1 (HTTP over TLS) and PSI/1.0 (SOAP over HTTP).</tt> <tt>(b) Concrete mappings of operations and elements for Print Services. </tt> <tt>(c) Concrete mappings of operations and elements for Print Jobs. Jobs.</tt> <tt>(d) Sets of conformance requirements for implementations of these concrete operations and elements in Print Services.</tt> <tt>In order to support equivalent functionality for scanning in network multifunction devices, there is a clear need to develop a semantic model and a set of abstract operations and elements for Scan Services and Scan Jobs. </tt> <tt>In order to implement these abstract operations and elements for Scan Services and Scan Jobs, there is a clear need to map them onto a concrete protocol stack to link Scan Clients and Scan Services. </tt> <tt>Since the current state-of-the-art Internet network application protocol stack is the Web Services stack (i.e., WSDL-defined SOAP over HTTP, using standard Web Services modules for security, addressing, etc.), there is a clear need to define a binding of these abstract operations and elements for Scan Services and Scan Jobs onto concrete SOAP messages and XML Schema instances. </tt> <tt>No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.487 / Virus Database: 269.13.27/1020 - Release Date: 9/20/2007 12:07 PM </tt>