RE: [w3c sml] section "resolving an SML reference" section missing.

That is quite interesting reasoning, Kirk.  :-)

I think it means to say:

A conforming model validator MUST support SML references as defined in this specification.

--
ginny

________________________________
From: Wilson, Kirk D [mailto:Kirk.Wilson@ca.com]
Sent: Wednesday, December 05, 2007 10:20 AM
To: Sandy Gao; Smith, Virginia (HP Software)
Cc: public-sml@w3.org
Subject: RE: [w3c sml] section "resolving an SML reference" section missing.

What exactly does the statement "References MUST be supported by model validators that conform to this specification" (section 4) mean?

In the context, I would take this statement to mean that every reference must be supported by at least two model validators.  In other words, to use just an SML URI scheme in a reference, the URI scheme MUST (obligatorily) be supported by at least validators "out there" in the market place.  If there is only one URI scheme validator "out there", then must I include another scheme for which a validator exists in order to meet this requirement on the reference itself?  (Ok, I'm being a little ridiculous on this last question, but it is to point out that the statement could say something radically different than what was intended if read literally.)

Is the intention to something more like:  Processing SML references SHOULD employ a model validator that conforms to this specification - ??

Kirk Wilson, Ph.D.
Research Staff Member
CA Labs
603 823-7146

________________________________
From: public-sml-request@w3.org [mailto:public-sml-request@w3.org] On Behalf Of Sandy Gao
Sent: Wednesday, December 05, 2007 11:44 AM
To: Smith, Virginia (HP Software)
Cc: public-sml@w3.org
Subject: Re: [w3c sml] section "resolving an SML reference" section missing.


Thanks Ginny for performing this extensive analysis. I think Valentina and I reached the same conclusion when we were discussing 5291.

I'd also like to keep the current organization. "Rules" are generally easier to understand than "steps".

I can also see how the steps could help people, especially implementers. Also the steps helped us (the WG) to ensure that we got what we wanted.

Maybe a compromise could be to keep the current organization, and include the steps as a non-normative section? Or the other way around (rules non-normative; steps normative), but this could be much harder to do.

So I can see 3 options:
1 Rules only
2 Both rules and steps, with steps non-normative
3 Both rules and steps, with rules non-normative

No strong preference.

BTW, a purely editorial comment. It seems that the organization of 4.2.1 and 4.2.2 looks a bit awkward. The current 4.2.1 and 4.2.2 overlap a little bit; and 4.2.1 also depends on the second half of 4.2.2. Would it help at all to have:

4.2.1 At most one target
4.2.2 Consistent Reference Schemes
4.2.3 Identical Targets

where 4.2.1 and 4.2.2 talk about different aspects of the "one target" rule; both of them need the "identity" definition for targets, which is defined in 4.2.3?

Thanks,
Sandy Gao
XML Technologies, IBM Canada
Editor, W3C XML Schema WG<http://www.w3.org/XML/Schema/>
Member, W3C SML WG<http://www.w3.org/XML/SML/>
(1-905) 413-3255 T/L 313-3255


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2007-12-05 02:33 AM

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Subject

[w3c sml] section "resolving an SML reference" section missing.









As promised, attached is a document that contains the missing section in the SML spec that I believe Kumar was referring to in our last meeting. The document contains the missing section and also the current text for comparison. The missing text lists several reference resolution and model validation requirements. I've indicated in the comments which of the current sections contain these requirements.

I prefer the current text and organization rather than the missing section for the following reasons:

- the missing section mixes reference resolution and model validity in what appears to be a series of 'steps'
- the current organization allows us to define terms and add additional information along with specifying each requirement.

--
ginny


#### RefTextComparison.doc has been removed from this note on December 05 2007 by Sandy Gao
#### RefTextComparison.pdf has been removed from this note on December 05 2007 by Sandy Gao