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Re: rdf:RDF element is optional

From: Guus Schreiber <schreiber@cs.vu.nl>
Date: Fri, 23 Jan 2004 16:18:41 +0100
Message-ID: <40113B51.9060004@cs.vu.nl>
To: Minsu Jang <minsu@etri.re.kr>
Cc: webont-comments <public-webont-comments@w3.org>

Minsu Jang wrote:

> Hi,
> 
> According to the section 2.6 of the RDF/XML syntax
> specification[1], the top elment - rdf:RDF - of an RDF
> document can be omitted if there's only one top-level
> element inside rdf:RDF.
> 
> In correspondence to this, the following sentence stated
> in the section 2.1 of [2] should be revised.
> Here's my try:
> 
> [The Original Sentence]
> "As with any RDF document, the OWL code should be
> subelements of an rdf:RDF element."
> 
> [A Revised Sentence]
> "As with most RDF documents, the OWL code should be
> subelements of an rdf:RDF element. But in the case of OWL
> codes with only one top-level element, rdf:RDF element
> can be omitted."

Thanks very much for spotting this.

In W3C documents "should" has a different requirement level than  "must" 
[1]. Therefore, we propose to just change "any" to "most" in the 
original sentence, as you suggested.

Please let us know whether you this change is acceptable to you.

Guus Schreiber
co-chair Web Ontology Working Group


[1] http://www.w3.org/2001/06/manual/#RFC


> 
> Regards,
> Minsu Jang
> 
> [1] RDF/XML Syntax Specification
>       (http://www.w3.org/TR/rdf-syntax-grammar)
> [2] OWL Web Ontology Language Reference
>       (http://www.w3.org/TR/owl-ref/)

-- 
Free University Amsterdam, Computer Science
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Tel: +31 20 444 7739/7718
E-mail: schreiber@cs.vu.nl
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Received on Friday, 23 January 2004 10:22:44 GMT

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