Thoughts on context passing - CAM example

["David RR Webber" <david@drrw.info>]

I'm just reviewing the CAM 0.14 spec's for next week

in XML2003 - and so I'm passing along here an example

of an XML rendering that CAM has evolved for passing

context.

 

Attached XML sample.

 

A CAM template obtains these by a simple URL reference

in the context header section, and of course the XML instance

could be stored in a registry - hence there are several places

to assign UIDs that point to related associations to

BPSS, CPA, etc.

 

There's a lightweight typing mechanism that synchronizes

with the CAM content reference system and optionally

points to registry too.  It's intend to be parsable standalone

without a CAM processor - and only a minimal amount

of processing code needed.

 

There's also support for the CCTS notion of 8 areas of

context variables, and these are referenced via simple

abbreviation codes (optional).

 

More details can be found in the CAM specifications,

this is just intended to be a quick illustration.

 

The bottom line is - need to evolve a common approach

here between CPA, BPSS, Registry and CAM.

 

Feedback / thoughts welcome!

 

Thanks, DW.

<ebContext UIDref='SDIR03400' interchangeID='123456789' BPMref='ABC123456:01' CPAref='ABC012345'
xmlns:as="http://www.oasis-open.org/committees/cam";>
<header>
 <description>An example context instance</description>
 <version>1.0</version>
 <language refcode='eng' codelist='ISO639-2' name='English'/>
 <usage>CAM</usage>
 <usage>BPM</usage>
</header>
<conditions>
   <condition name="Country"    value="USA" as:member="USA,CA,MX"/>
   <condition name="itemType"   value="nonperishable" label="Item type:" as:member="nonperishable,perishable,refridgerated,fragile,heavy"/>
   <condition name="partnerType"        value="wholesale" label="Partner type:" as:member="wholesale,retail,distributor,oem,service"/>
   <condition name="Catalogue" value="A2003-Q1" as:setLength="8"
              as:setMask="XNNNN-QN" as:UIDreference="SGIR:030451"/>
</conditions>
</ebContext>