attachment

<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">

<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
 name="Street"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
 name="address"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
 name="place"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
 name="PlaceName"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
 name="PlaceType"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--
 /* Font Definitions */
 @font-face
        {font-family:Tahoma;
        panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
        {font-family:Impact;
        panose-1:2 11 8 6 3 9 2 5 2 4;}
 /* Style Definitions */
 p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0in;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;}
span.EmailStyle17
        {mso-style-type:personal-compose;
        font-family:Arial;
        color:windowtext;}
@page Section1
        {size:8.5in 11.0in;
        margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
        {page:Section1;}
 /* List Definitions */
 @list l0
        {mso-list-id:1650131500;
        mso-list-type:hybrid;
        mso-list-template-ids:-162519914 67698705 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
        {mso-level-text:"%1\)";
        mso-level-tab-stop:.5in;
        mso-level-number-position:left;
        text-indent:-.25in;}
ol
        {margin-bottom:0in;}
ul
        {margin-bottom:0in;}
-->
</style>

</head>

<body lang=EN-US link=blue vlink=purple>

<div class=Section1>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>All,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have come across a small issue in some of my prototyping
of Scan, Print and Resource when trying to co-locate them on a single port.&nbsp;
The issue is a result of moving to a single namespace for all of the MFD.&nbsp;
In a SOAP binding using document/literal encoding, messages are dispatched
using the SoapAction or the message name in the body of the request.&nbsp; The
implication here is that all operations across the MFD services must have a
unique name or they need to be differentiated by namespace.&nbsp; &nbsp;Differentiating
service operations by namespace changes the fully qualified name of the
operations.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We have common administrative operations such as Pause and
Resume.&nbsp; We also have some common service specific operations such as
CreateJob that share a name but differ in the contents of the parameters.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Possible solutions:<o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>1)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font></span></span></font><![endif]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Change back
to multiple namespace approach putting each service in its own namespace.<o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>2)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font></span></span></font><![endif]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Modify the
operation names to include the name of the service in all operations.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Proposed solution:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I prefer alternative 2.&nbsp; Alternative 1 will cause some
extensibility point issues and complicates the structure of the WSDL and
schemas.&nbsp; There is some mapping that needs to be done with solution 2 and deployed
Web Services (e.g. WS-Scan).&nbsp; &nbsp;I see no problem with that since a
mapping is required even if the unqualified operation names are aligned.&nbsp;
The mapping required is trivial.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If there is no objection, I will make the change before
moving to PWG wide Last Call.&nbsp; If anyone wishes to discuss this at a
teleconference I can delay sending the document for PWG wide Last Call.&nbsp;
Please send me a note this week if you to discuss this further.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Comments?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Pete<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Impact><span style='font-size:
12.0pt;font-family:Impact;color:navy'>Peter Zehler</span></font><br>
<br>
<st1:place w:st="on"><st1:PlaceName w:st="on"><font size=2 color=navy
  face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:navy'>Xerox</span></font></st1:PlaceName><font
 size=2 color=navy face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
 color:navy'> <st1:PlaceName w:st="on">Research</st1:PlaceName> <st1:PlaceType
 w:st="on">Center</st1:PlaceType></span></font></st1:place><font size=2
color=navy face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:navy'> Webster<br>
</span></font><font size=2 color=navy face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:navy'>Email: Peter.Zehler@Xerox.com</span></font><br>
<font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Voice: (585) 265-8755</span></font><br>
<font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>FAX: (585) 265-7441</span></font><br>
<font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>US Mail: Peter Zehler</span></font><br>
<font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Xerox Corp.</span></font><br>
<st1:Street w:st="on"><st1:address w:st="on"><font size=2 color=navy
  face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>800
  Phillips Rd.</span></font></st1:address></st1:Street><br>
<font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>M/S 128-25E</span></font><br>
<font size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:navy'>Webster NY, 14580-9701</span></font> <o:p></o:p></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

</html>