[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [office] Mapping OpenDocuemnt metadata to RDF
To better illustrate what I was talking about, I have attached four graphs. The first one (graph1.png) would be an expression of (a part of) OpenDocuemnt's meta-data in RDF. I think it's the most straight forward way to do it. In order to extend the metadata, one would create a graph like in the second illustration (graph1_5.png). This however, is the point where I am unsure whether it is the 'right way' (in the semantic-web world) to do this, since it might be a good idea to be able to express the relationship of the dc:creator and ex:author prefixes. So, rather then making the statements realting to the prefixes which are defined by the OpenDocuemnt meta-data schema directly, one could use an indirection via some blank nodes, that have a well-known nodeID. (Is there some mechanism in rdf, that would be better suited to do this?). We would then map the object from the OpenDocument metadata statement to a statement about that node. This is illustrated in graph2.png. If one was to make further statements about something that is already described in part by the OpenDocument metadata, he could make a new statement about that indirection node. Thus this statement could be associated with the the subject that the original OpenDocument metadata was describing (e.g. the author/creator) as is shown in graph3.png I am currently at a loss to whether a mechanism as described in last two paragraphs is usefull, and whther this is a clean way to design it. For instance, the duplication of dc:author and dc:date prefixes (as denoted by the red squares and double-arrows) seems to be somewhat out of place. I hope that those of you that have more experience in the semnatic web field can tell me what would be the best direction here... All the best, ~Lars -- Lars Oppermann <lars.oppermann@sun.com> Sun Microsystems Software Engineer - StarOffice Sachsenfeld 4 Phone: +49 40 23646 959 D-20097 Hamburg Fax: +49 40 23646 550 http://www.sun.com/staroffice
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]