attachment

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"> <META content="MSHTML 6.00.2800.1515" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>Hi Harry,</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>I'm a little fuzzy here too.  Let me say that Pete Zehler and I have repeatedly researched</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>the XML keyref and idref elements and they just weren't intended for declaring key element</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>relationships (they presume that XML _attributes_ and not _elements_ are being referenced).</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>However, Pete and I also agreed on WIMS telecons long ago that using containment was</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>a bad (fragile) idea.  Therefore, all of the WIMS top level objects (Agent, System, Service,</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>etc.) have elements that _reference_ related or subordinate objects (Jobs, Resources, etc.),</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>using the XxxReference datatypes (which support URI, name, or local integer ID references),</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>rather than actually _containing_ the subordinate objects (like IPP unwisely did).</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>In particular the WIMS protocol operations now do NOT require absolute URIs as Agent</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>references, per Bill Wagner's good comment some time back that absolute URIs expose</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>the customer's network topology.</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>Cheers,</FONT></SPAN></DIV> <DIV><SPAN class=892341415-09112005><FONT face=Arial color=#0000ff size=4>- Ira</FONT></SPAN></DIV> <DIV><FONT face=Arial color=#0000ff size=4></FONT> </DIV> <P><FONT size=2>Ira McDonald (Musician / Software Architect)<BR>Blue Roof Music / High North Inc<BR>PO Box 221  Grand Marais, MI  49839<BR>phone: +1-906-494-2434<BR>email: imcdonald@sharplabs.com</FONT> </P> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid"> <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Harry Lewis [mailto:harryl@us.ibm.com]<BR><B>Sent:</B> Tuesday, November 08, 2005 12:51 PM<BR><B>To:</B> imcdonald@sharplabs.com<BR><B>Cc:</B> wamwagner@comcast.net<BR><B>Subject:</B> WIMS - containment vs metadata ID REF<BR><BR></FONT></DIV><BR><FONT face=sans-serif size=2>My Chicago notes are cryptic about </FONT><BR><FONT face=sans-serif size=2>"containment vs metadata IDRef. Further investigation needed. Ira prefers containment. Doesn't see how IDRef can be used in the Printing classes". </FONT><BR><FONT face=sans-serif size=2>Is this a last call comment (that's not how I recorded it). Is this a WIMS protocol comment?</FONT> <BR><FONT face=sans-serif size=2>Trying to get this into the minutes in a meaningful fashion.</FONT> <BR><FONT face=sans-serif size=2>---------------------------------------------- <BR>Harry Lewis <BR>IBM STSM<BR>Chairman - IEEE-ISTO Printer Working Group<BR>http://www.pwg.org<BR>IBM Printing Systems <BR>http://www.ibm.com/printers<BR>303-924-5337<BR>---------------------------------------------- </FONT></BLOCKQUOTE></BODY></HTML>