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DataType.Telecon.2007.11.19/Minutes
See also: IRC log
- Present
- Uli Sattler, Carsten Lutz, Michael Smith, Bijan Parsia, Alan Ruttenberg, Jeremy Carroll
- Regrets
- Chair
- Scribe
- Michael Smith
(Scribe changed to Michael Smith)
Agenda at http://www.w3.org/2007/OWL/wiki/DataType.Telecon.2007.11.19/Agenda
Michael Smith: introduces agenda, rqmts for in-line, external data types
Alan Ruttenberg: innteresting to hear what the motivation is for in-line datatypes. what would go wrong with just external?
Bijan Parsia: people don't like having definitions in external file, experience from Protege 3.x
Bijan Parsia: avoid overhead for always naming types
Alan Ruttenberg: is there an argument that necessitates a separate syntax for RDF/OWL?
Bijan Parsia: the argument is that its not clear tools could find XML Schema syntax in-line
Bijan Parsia: some argue its more familiar for people from RDF background
Jeremy Carroll: unnamed datatypes are advantageous, use-case for in-line user defined datatypes
Jeremy Carroll: issue with serialization of XMLLiterals in RDF/XML, particularly qnames in attributes
Uli Sattler: issue with XML schema types is closely related to using other types in OWL
Alan Ruttenberg: concern over defiing, e.g. owl:rational
Bijan Parsia: owl extensibility requires URIs. owl:rational could be defined, doesn't seem to be a big deal
Bijan Parsia: clarifying Uli, Alan, are you saying reusing XML Schema syntax might put burden on future datatypes
Uli Sattler: concern was that other datatypes look like native types
Bijan Parsia: yes, I believe that they would
Bijan Parsia: we could use a relax ng type syntax as an inline syntax
Jeremy Carroll: take it that XML Schema types are a given, largely b/c OWL 1.0 supported XML Schema types
Jeremy Carroll: query about how the value space mapping for rational could work
discussion of representation of rational as pair of integers
discussion of XSCD, what they offer, are needed
Jeremy Carroll: the rqmt for us, is less than all of XSCD. we could take less of a solution if it provided re-usable URIs
Michael Smith: a query has been sent to the XML Schema WG chair on the status of XSCD
Alan Ruttenberg: can we say that if URI is present you can reference external
Alan Ruttenberg: suggest we move forward with that proposal, on Wed telecon