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Subject: Re: [xdi] XDI RDF Model V12
Dear Drummond, thank you for this new version. I'm synchronizing my graph model proposal with this new specs, it basically impacts on two issues: semantics for inverse predicates and context descriptors. Related to this latter, I have two questions. I report an excerpt from one example in the current specs: $ $is$a $$xdi $is$$xdi =drummond =!f83.62b1.44f.2813 Q1) the first XDI statement, $/$is$a/$$xdi, shouldn't it be instead $/$a/$$xdi? As the former $is$a (subclassof, type) is now replaced by $a. Is it just a typo or I'm missing something here? Q2) the use of $$xdi instead of $context$xdi. Is there a reason to do this? Sometimes ago we discussed to have $$ reserved for XDI variables in queries, similar to SPARQL $. At that time, however we were talking about $$ followed by numbers, e.g. $$1, $$5, $$206... but, given the similarity with the use of $ in SPARQL, maybe we can have this extended also with letters? This would help the programmer making the query, e.g. =markus $get / =giovanni +friend $$footballfriend $$footballfriend $a +footballfan might be more readable than =markus $get / =giovanni +friend $$342 $$342 $a +footballfan What do you think? Thanks, Giovanni At 07.20 29/01/2009, Drummond Reed wrote: I was finally able to finish a complete update to The XDI RDF Graph Model document and upload it (before I go offline for four days): PDF: http://www.oasis-open.org/committees/download.php/30955/xdi-rdf-model-v12.pd f Word: http://www.oasis-open.org/committees/download.php/30954/xdi-rdf-model-v12.do c It is now fully in sync with our wiki page for the XDI 1.0 Addressing and RDF Graph Model spec text: http://wiki.oasis-open.org/xdi/XdiOne/RdfGraphModel The final appendix has the list of all revisions, but the key ones were: * Revise inversion predicate to $is * Revise $context to $$... * Revise XDI context examples * Revise XDI dictionary example * Update RDF analogies I still don't know if there is enough information in the Context Descriptor and Context Reference section to address some of what Giovanni brought up in the document he posted last week. Hopefully since Markus is there with him this week they will be able to discuss this and clear up any questions. See my next email RE the tomorrow's telecon. =Drummond --------------------------------------------------------------------- To unsubscribe from this mail list, you must leave the OASIS TC that generates this mail. Follow this link to all your TCs in OASIS at: https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.14/1920 - Release Date: 27/01/2009 18.15
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