[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Embedding RDF metadata within an XML document
Warren Hedley wrote: > 2. If we are embedding the metadata inside the resource to > which it refers, is it appropriate to omit the @about attribute > on the <rdf:Description> element? > Does omitting the @about attribute imply that the RDF block > refers to the resource in which it is contained? (This is the > behaviour that we are after.) Just to be definite: No, it doesn't. Omitting the about attribute gives you metadata that is about a newly created anonymous resource. The empty-string URI reference always refers to the current document, so you can (as another poster has said) use about="" to make clear that your metadata describes the document in which it is embedded. However, based on your example below, you are in fact using metadata to describe only *part* of the document in which it is embedded, specifically the element in which the metadata is embedded. If that is your intent, then you must change your example to something like this: > <cellml:some_cellml_element id="some"> > > <rdf:Description about="#some"> > <cmeta:some_metadata_element> > Some metadata content > </cmeta:some_metadata_element> > </rdf:Description> > > Some CellML content > > </cellml:some_cellml_element> > > <cellml:another_cellml_element id="another"> > > <rdf:Description about="#another"> > <cmeta:some_metadata_element> > Different metadata content > </cmeta:some_metadata_element> > </rdf:Description> > > Some CellML content > > </cellml:another_cellml_element> > > Is this correct use of RDF? Are processors likely to be able to > make use of it? Are processors going to be able to determine > which metadata applies to <some_cellml_element> and which > applies to <another_cellml_element>? The id attributes in the CellML elements (where you must declare the id attribute as of type ID in your DTD) match up with the URI references in the about attributes in the rdf:Description elements. (Note that the URI references must begin with "#" and the ids must not.) -- There is / one art || John Cowan <jcowan@r...> no more / no less || http://www.reutershealth.com to do / all things || http://www.ccil.org/~cowan with art- / lessness \\ -- Piet Hein
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|