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<div dir="ltr"><div><div><div><div><div><div><div><div><div><div>Hi,<br><br></div>There are hundreds of self-contradictory, informal definitions <br>of "protocol binding" around the Internet. Many IETF RFCs<br></div>
</div>use this term just as we do in PWG, but none define it (that<br></div><div>I've found so far).<br></div><div><br></div>The following excerpt from WSDL/1.1 is illustrative of the<br></div>conventional computer science use of "protocol binding":<br>
<br>"Abstract: WSDL is an XML format for describing network <br>services as a set of endpoints operating on messages <br>containing either document-oriented or procedure-oriented <br>information. The operations and messages are described <br>
abstractly, and then bound to a concrete network protocol <br>and message format to define an endpoint. Related concrete <br>endpoints are combined into abstract endpoints (services). <br>WSDL is extensible to allow description of endpoints and <br>
their messages regardless of what message formats or <br>network protocols are used to communicate."<br><br></div>Thus, my proposed definition:<br><br></div><br>Protocol Binding: The combination of a network protocol <br>
with a set of message formats, operations, and attributes <br>that constitutes a concrete data model for implementation <br>of an abstract information model and an associated set of <br>abstract operations and attributes.<br>
<br><br></div><div>The above definition fits the usage of this term in every <br>IETF RFC that I looked at this evening (several dozen).<br></div><br></div>Cheers,<br></div>- Ira<br><br><div><div><br clear="all"><div><div>
<div><div><div><div><div><div><div><div><div><div dir="ltr">Ira McDonald (Musician / Software Architect)<br>Co-Chair - TCG Trusted Mobility Solutions WG<br>Chair - Linux Foundation Open Printing WG<br>Secretary - IEEE-ISTO Printer Working Group<br>
Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG<br>IETF Designated Expert - IPP & Printer MIB<br>Blue Roof Music / High North Inc<br><a style="color:rgb(51,51,255)" href="http://sites.google.com/site/blueroofmusic" target="_blank">http://sites.google.com/site/blueroofmusic</a><br>
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