codes

[Jacob Westfall <jake@jpw.biz>]

Hi,
	The code element in the alert block could be enhanced by using the valueListUrn and value format to better present any special handling values.
	Currently we use the code element to show what Profiles/Layers are in use for the message so that the receiving system can load its Layer validators before parsing info blocks.  For example,
<code>NAS=1.3</code>
<code>HPP=1.0</code>
	Is there perhaps a better way of denoting what Profiles/Layers are in use for a message?  Maybe an element like profile or layer or something instead of code.  The layer would match the valueListUrn's used for the optional elements.
<layer>urn:cap:profile:NAS1.1</layer>
...
<parameter>
  <valueListUrn>urn:cap:profile:NAS1.1</valueListUrn>
  <value>A</value>
</parameter>

-- 
jake@jpw.biz
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