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Subject: Re: [egov] Re: [huml] The Office of Justice Programs's (OJP) Justice XML Data Dictionay
David / Rex et al: Thanks for the CC. What you both suggest is certainly feasible given the existing OASIS Registry specs (well the ebXML one anyways - I am not sure you could accomplish this in a UDDI registry). RDF schemes to classify sets of registry content is something that will likely be done. IMO - it may be akin to creating an extra layer however (unless I have somehow missed some of this thread which I suspect may be true). Since RDF is itself a classification scheme, having the Registry classification scheme point at an RDF set first, which in turn points at a the actual registry objects, may be overkill but hey - what do I know. Using RDF as a classification "Guide" may be interesting and there may be a specific use case for it however there may be a dependency on XML itself. The built in registry classification mechanism may be more flexible in terms of accounting for non-XML syntax (UML). David has been working on an important part of aggregation called CAM (Content Assembly Mechanism). CAM would function like a schema template whereby a user could declare the context it would be used in, then a search of the registry would yield the appropriate artifacts to populate the final schema instance with (assuming XML was the end syntax - other end syntaxes may also be possible). CAM has an important role is providing a meta-description of payload level aggregations. XML Schema may be useful as an expression of CAM but RDF may alos be useful. I guess we'll have to wait for the final draft to see what can be used. I have a sneaking suspicion that RDF may lack the necessary cardinality (multiplicity) operators for advanced representation of metadata. Yellow Dragon Software hopes ot be able to offer our registry product for download from our website sometime within the next 3-4 weeks. I would invite people to download an evaluation copy and test some of these scenarios out and share their experiences with us all. Interesting conversation. enjoy!! Duane Nickull -- Yellow Dragon Software - http://www.yellowdragonsoft.com Service Oriented Architecture Components - ebXML, Web Services, SOAP Project Team lead - United Nations CEFACT eBusiness Architecture +1 (604) 726-3329 *********************************** Rex Brooks wrote: > > David, > h > We're agreed. > > I took the liberty of including you and Duane on the list for another > posting related to this discussion. I look forward to hearing what Duane > thinks. > > Ciao, > Rex > > At 10:13 AM -0400 5/17/03, David RR Webber - XML ebusiness wrote: > >> Rex, >> >> OK - we're on the same pages here! >> >> BTW - I think you should look at how storing RDFs into an OASIS Registry, >> using the classification scheme approach that OASIS provides, and >> then creating searches against that RDF could provide you with >> semantic cross-referencing. >> >> You can also manually setup associations across content, both >> internally and externally using the registry. >> >> I've CC:d Duane Nickull who can followup with you offline on these >> ideas to see how this might work. >> >> Always good when we can tie the work of multiple OASIS TC's >> together to produce the required solution. >> >> Cheers, DW. >> ================================================================ >> Message text written by Rex Brooks >> >>> >> What I am thinking now is how a tool that produces the kind of >> registry you describe would be very useful when applied to resources >> from an rdf schema that accompanies a given specfication, for those >> resources that can be used by such a tool, to produce quick >> comparisons from which an application developer could choose the best >> set for a given application. >> >> < > > > -- Yellow Dragon Software - http://www.yellowdragonsoft.com Service Oriented Architecture Components - ebXML, Web Services, SOAP Project Team lead - United Nations CEFACT eBusiness Architecture +1 (604) 726-3329 ***********************************
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