W3C

Vocab Management TF, SWBPD WG

15 Nov 2005

2005-11-15: Agenda

2005-11-15: IRC log

2005-10-28: http://www.w3.org/2005/10/28-vmtf-minutes.html - minutes of previous telecon

Attendees

Present
Tom_Baker, Ralph, Alistair, Libby_Miller
Regrets
DanBri, Bernard
Chair
Tom
Scribe
RalphS

Contents


VM telecons

Ralph: apologies; I failed to followup with Matthieu, Vivien, or Ted so I don't have any idea whether or not they expect to come.

<scribe> ACTION: Ralph confirm either 22 Nov or 6 Dec with Matthieu and Ted or propose an alternative [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action01]

Next meeting Tues 22 Nov 1400Z. Then Tues 6 Dec and Tues 20 Dec.

VM goals in lifetime of Task Force (end January)

<All> It may be unrealistic to get alignment btw FOAF/SKOS/DC by end of January. Would like to consider using Al's draft on configuring Apache as the core of a Working Draft -- use http-examples (http://isegserv.itd.rl.ac.uk/VM/http-examples/) as basis of note. It would be good for Dublin Core to adopt this practice before we publish. We should have tested by the time we publish. but not necessarily require that all cases follow the guidelines. DC a more difficult case (the added complication of purl.org) -- not need to wait for DCMI; if DC were to change now, then had to change again based on comments to draft, how much would that cost? Maybe FOAF as slash example and SKOS as hash example. (Note that original intention was not to publish until FOAF/DC/SKOS all do same thing.)

<All> Danbri started to fiddle with FOAF's apache config. Alistair has tested the configurations for dummy vocabularies. Purl.org configuration will be more complicated because it apparently does not support content-based redirection. The question is whether the client continues the content negotiaton after the redirect. Alistair believes it can be handled with one additional redirect -- i.e., every time the current client repeats the request it repeatedly delivers the "Accept:" headers (i.e., for content negotiation). It seems obvious that this is the correct behavior, but we should make sure this is the case.

<All> We want to keep the note as tightly scoped as possible. It is a positive thing when @@TODO refs are included in first working draft; it puts issues out there in a form people can react to. No need to artificially press for Note status. It is in itself a contribution if we put the issues into the archive so we can continue working in the next round of charters. The SWBP WG F2F consensus seemed to be that OEP, SKOS, and VM were all important to continue and they had sufficient interdependencies to do them in one WG.

<tbaker> ACTION: Alistair to move draft into VM space [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action05]

<tbaker> ACTION: Tom to prepare excerpts from last telecon for inclusion in new Editor's Draft [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action06]

Configuring Apache HTTP Server for RDFS/OWL Ontologies

This section refers to http://isegserv.itd.rl.ac.uk/VM/http-examples/.

<scribe> ACTION: Alistair investigate PURL use case and add to configuration options [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action02]

<scribe> ACTION: Ralph check configurations on W3C site [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action04]. Ralph would like to test these configurations in the W3C site for due diligence but would be satisfied with Alistair's testing for first WD.

<Alistair> The issues of versioning and change management are coming to fore in the OWL community. These came up at the OWL Futures Workshop at ISWC. So strong dependencies btw continuing OWL work and VM.

Alistair: This note: categorized into minimal and "good practice" requirements. Ralph worries about language that says "not possible" to receive response X... Alistair figures it is reasonable to state these as goals.

Provenance and URIs

Alistair: Provenance is supported by using the final URI from the chain of redirects as the name of the graph, so different URIs represent different versions of a vocabulary (different graphs).

tbaker posted comments on this at http://lists.w3.org/Archives/Public/public-swbp-wg/2005Nov/0078.html "Provenance information" [2005-11-15]. Tom wonders if there is an implied good practice to "date-stamp" URIs. Alistair points out that it is equally reasonable to use a version number (instead of date) in a URI. Tom's point is that we should make it clear: Do we want to imply that machines will be expected to recognize the date-stamping in a URI, parse out the date, and use that information to infer something about the resource? Or, rather, do we really want to say that the examples are not meant to be parsed by machines but are simply a social convention?

<Ralph> Ralph points out that, as we discovered with RDF, people mimic examples. Things we should in our examples will be mimiced -- we should be careful to document the explicit and implicit semantics of such mimicry.

<Alistair> Technically, there is no reason one could not put .rdf at end of the URI of a namespace -- should we perhaps say something about this?

<Ralph> Ralph thinks we should refrain from commenting _too_ much on practices out there.

<tbaker> Tom suggests that the draft should make clear that location of .rdf and .html files is arbitrary.

Summary of Action Items

[NEW] ACTION: Alistair investigate PURL use case and add to configuration options [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action02]
[NEW] ACTION: Alistair to add purl.org case to draft note [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action03]
[NEW] ACTION: Alistair to move draft into VM space [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action05]
[NEW] ACTION: Ralph check configurations on W3C site [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action04]
[NEW] ACTION: Ralph confirm either 22 Nov or 6 Dec with Matthieu and Ted or propose an alternative [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action01]
[NEW] ACTION: Tom to prepare excerpts from last telecon for inclusion in new Editor's Draft [recorded in http://www.w3.org/2005/11/15-vmtf-minutes.html#action06]
 
[End of minutes]

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$Date: 2005/11/22 13:24:55 $