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Re: delete Primer section on Boolean-valued properties?

From: Dan Connolly <connolly@w3.org>
Date: 05 Nov 2002 17:21:29 -0600
To: Frank Manola <fmanola@mitre.org>
Cc: w3c-rdfcore-wg@w3.org
Message-Id: <1036538490.11400.6930.camel@dirk>

With apologies for giving you conflicting advice...

On Tue, 2002-11-05 at 16:39, Frank Manola wrote:
> Section 4.3.2 of the Primer describes how to do Boolean-valued 
> properties in RDF (because at the time RDF lacked any built-in values 
> for TRUE and FALSE.)  The section was added because I was explicitly 
> directed to cover it, but this was before we had datatypes.

Yes... I might have asked you to do that.

I remember, now, that there are all these "how do I do XYZ?"
questions among RDF users, and it would be nice for the
primer to answer them. (hence my offer to clarify
rdf:Alt, which I gather you ended up dealing with
without my help.)

So while I'd like to minimize the explanation of generalities
and background material in the primer, I support explaining
how users should go about specific tasks.

I think 2 or 3 examples of how to deal with boolean characteristics
is in order... one using a class, say GoodThing, but noting we
don't have rdf:notType, so this doesn't give you BadThing for
free... you might mention owl:complementOf in there...
and another example using xsd:boolean.

>  Now that we 
> *do* have datatypes, the section looks a bit strange (you can just use 
> xsd:boolean, a point I recently added to the section).  Brian has 
> suggested this section be removed (which I thought about doing in the 
> process of producing the current Primer version), but I was reluctant to 
> do this on "editor's discretion" alone, because the section is only 
> there because the WG asked for it.  If anyone has any good reasons for 
> keeping it, let me know, otherwise I'd like to delete it.

I don't mind deleting it too much.

But while you're thinking about this sort of stuff...
Do you have examples of dealing with n-ary relations?

I saw recent discussion of things versus their names;
I'm intersted to have that explained in the primer.

Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Tuesday, 5 November 2002 18:21:00 UTC

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