- From: Miles, AJ (Alistair) <A.J.Miles@rl.ac.uk>
- Date: Mon, 24 Jan 2005 15:49:59 -0000
- To: "'public-esw-thes@w3.org'" <public-esw-thes@w3.org>
Mark wrote: When I read the section "advanced annotations" I was a bit confused by the term "annotation properties", because of OWL's "annotation properties", maybe another name is more neutral? --- What about 'documentation properties'? Tom wrote: 8. I found myself stumbling over the phrase "Structured Value" as a label for object nodes which are themselves subjects of further assertions (i.e., which themselves have properties). I recognize that this is due to the particular way "structured value" has been used over time in the context of DCMI. Others without this historical baggage may not share this reaction. Querying Google for "'structured value' site:w3.org" yields a dozen or so hits from circa 1999 followed by the draft SKOS Core Guide. Hmm... One finds "structured property value" explained in, for example, the RDF Primer. In the SKOS Core Guide, however, the notion of "structured value" is explained less in modeling terms than as a style of XML encoding ("Structured Value Usage Style"). This relates to the point in my previous posting about presenting the RDF/XML serialization syntax ahead of (or instead of) labeled directed graphs. In the DCMI context, Andy Powell et al have clarified the (quite different but historically related) issue of "Dublin Core structured values" by distinguishing between value representations with inherent structure -- e.g., labelled strings, unlabelled strings, and marked-up text -- as opposed to "related descriptions" (see Appendix A in [6]). What the SKOS Guide calls a "structured value", then, is what the DCMI Abstract Model calls a "related resource description". To my way of thinking, the phrase "related resource description" is more helpful. If the SKOS Guide is aimed at RDF-literate readers, the concept of "structured value" could perhaps be clarified by explaining first what is meant in modeling terms, citing the RDF Primer and possibly emphasizing that it is about describing a related resource. At any rate, glossing over the model for the sake of emphasizing syntax guidelines seems like a risky strategy -- a potential source of modeling errors on the part of readers looking for syntax recipes. --- What about calling it 'blank node reference style' or 'resource reference style usage'? I'd also be quite happy with 'structured property value style ...' with a pointer to the RDF primer. I'll do some diagrams to illustrate these, especially the 'blank node style' or whatever we decide to call it. Btw I had planned to do lots of node-arc diagrams for the guide but didn't have time before the draft was submitted. Always planned to do lots of node-arc diagrams. Cheers, Al. --- Alistair Miles Research Associate CCLRC - Rutherford Appleton Laboratory Building R1 Room 1.60 Fermi Avenue Chilton Didcot Oxfordshire OX11 0QX United Kingdom Email: a.j.miles@rl.ac.uk Tel: +44 (0)1235 445440
Received on Monday, 24 January 2005 15:50:35 UTC