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RE: "GRDDL Agents" section, normative security text for review (# issue-conformance-labels)

From: McBride, Brian <brian.mcbride@hp.com>
Date: Mon, 19 Feb 2007 14:41:35 -0000
Message-ID: <86FE9B2B91ADD04095335314BE6906E8D94087@sdcexc04.emea.cpqcorp.net>
To: "Dan Connolly" <connolly@w3.org>, "GRDDL Working Group" <public-grddl-wg@w3.org>, "Jeremy Carroll" <jjc@hplb.hpl.hp.com>

Reading

  http://www.w3.org/2004/01/rdxh/spec [editor's draft $Date: 2007/02/17
21:58:04 $]

Section 7 begins:

[[
A GRDDL Agent is a software module that computes GRDDL results of
information resources. Given a URI I of an information resource IR, and
an XPath node N for a representation of IR, subject to security
considerations below and local policy and configuration, a GRDDL Agent
should:
]]

I think this is ambiguous.  It could be saying:

Forall ?X, if ?X computes GRDDL results of information resources then ?X
is a GRDDL Agent

And therefore, if anything computes any GRDDL result it should conform
the rules in the list that follows.

It could be saying:

If ?X is a GRDDL agent then ?X computes GRDDL results of information
resources and should conform to the rules in the following list.

I think you probably mean the latter. 

I note that section 8 is written in terms, not of a GRDDL Agent but of
GRDDL-aware agents.  So I'm not sure if the intent is to keep this term
also in the document.  If so, it might be helpful to distinguish it
clearly from a GRDDL Agent. 

Does the following express what you mean?

[[
A GRDDL Aware Agent computes GRDDL results according to the rules in
this specification but may be designed not to compute all the GRDDL
results of an input representation.  A GRDDL Agent is a GRDDL Aware
Agent that conforms to the following requirements.  Given a URI I of an
information resource IR, and an Xpath node N for a representation of IR,
except where proscribed by the security considerations described below
or by local policy as expressed in its configuration, a GRDDL Agent
should:

...
]]

Or am I just confused?

Brian






> -----Original Message-----
> From: public-grddl-wg-request@w3.org 
> [mailto:public-grddl-wg-request@w3.org] On Behalf Of Dan Connolly
> Sent: 17 February 2007 00:32
> To: GRDDL Working Group; Jeremy Carroll
> Subject: "GRDDL Agents" section, normative security text for 
> review (# issue-conformance-labels)
> 
> 
> Further to...
> 
> ACTION: DanC write the draft "conformance label" text, and 
> then johnL and rreck and bwm (jeremy) will then re-read spec
>  --
> http://lists.w3.org/Archives/Public/public-grddl-wg/2007Feb/at
> t-0135/14-grddl-wg-minutes.html#item03
> 
> 
> Please review the new section 7 GRDDL Agents and revised 
> section 8. Security considerations 
> http://www.w3.org/2004/01/rdxh/spec#sec_agt
> http://www.w3.org/2004/01/rdxh/spec#sec
> 
> Change log entry:
> 
> Revision 1.218  2007/02/17 00:25:02  connolly
> - added GRDDL Agents section, with GRDDL Agent conformance label
> - subordinate grddl trace example
> - move security considerations after GRDDL Agents section
> - fix section numbers
> 
> 
> Section 7 is short enough that I'll just paste it in:
> 
> ---8<---
> 7. GRDDL Agents
> 
> A GRDDL Agent is a software module that computes GRDDL 
> results of information resources. Given a URI I of an 
> information resource IR, and an XPath node N for a 
> representation of IR, subject to security considerations 
> below and local policy and configuration, a GRDDL Agent
> should:
> 
>      1. Find each transformation associated with N, i.e. 
>              1. each transformation associated with N via the
>                 grddl:transformation attribute as in the 
> Adding GRDDL to
>                 well-formed XML section 
>              2. each transformation associated with N via 
> HTML links of
>                 type transformation, provided the document bears the
>                 http://www.w3.org/2003/g/data-view  profile, as in the
>                 Using GRDDL with valid XHTML section. 
>              3. each transformation indicated by any 
> available namespace
>                 document, as in the GRDDL for XML Namespaces section.
>                 Note that this step involves computing GRDDL 
> results of
>                 the namespace document, recursively.
>              4. each transformation indicated by any XHTML 
> profiles, as
>                 in the GRDDL for HTML Profiles section. This step is
>                 also recursive. 
>      2. Apply each transformation to obtain a GRDDL result.
>      3. Merge those GRDDL results.
> ---8<---
> 
> 
> --
> Dan Connolly, W3C http://www.w3.org/People/Connolly/
> D3C2 887B 0F92 6005 C541  0875 0F91 96DE 6E52 C29E
> 
> 
> 
Received on Monday, 19 February 2007 14:42:04 GMT

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