Meeting Record

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Zakim IRC Bot: On the phone I see ??P3, +1.202.955.aaaa, martin, George, +03539149aabb (muted), edsu, ??P7 ←

Zakim IRC Bot: On IRC I see RRSAgent, Zakim, LuigiMontanez, PaulZH, george, jonphipps, martin, fadi, cygri, n8fr8__, mhausenblas, hughb, ww, edsu, sandro, trackbot ←

Zakim IRC Bot: cygri, listening for 10 seconds I heard sound from the following: ??P3 (9%), ??P8 (9%) ←

Zakim IRC Bot: On the phone I see ??P3, +1.202.955.aaaa, martin, George, edsu, ??P7, jonphipps, ??P8, +1.425.378.aacc (muted), +03539149aadd (muted) ←

Zakim IRC Bot: On the phone I see ??P3, LuigiMontanez, martin, George, edsu, ??P7, jonphipps, ??P8, +1.425.378.aacc (muted), fadi (muted) ←

Zakim IRC Bot: On IRC I see bobbin, DavidJames, vassilios, lindstream, RRSAgent, Zakim, LuigiMontanez, PaulZH, george, jonphipps, martin, fadi, cygri, mhausenblas, hughb, ww, edsu, sandro, ←

... we'll have a presentation from martin of ctic, and hopefully one from li ding of rpi ←

... time permitting i'd like to talk about the scope and deliverables of the group ←

Martín Álvarez: here at ctic we develop an open data solution in spain, a good proof of concept of the linked data solution ←

... here you can see some metadata based on the VoID and Dublin Core vocabularies ←

... you can see license and provenance information, and the available data formats ←

... also have a rss feed of the catalogs, which is used to geenrate a map of the catalogs ←

Richard Cyganiak: you have used void for the data catalog, are the datasets in the catalog all available as rdf? this is not the case for most catalogs (e.g. data.gov) ←

Martín Álvarez: i think void is by definition only for rdf data sets ... so i think no? ←

Richard Cyganiak: that's what void was made for originally, but it possibly could be applied in a broader scope ... but i take your answer as saying you'd only use it for rdf data sets? ←

Zakim IRC Bot: On the phone I see ??P3, LuigiMontanez, martin, George, edsu, ??P7, jonphipps, ??P8, +1.425.378.aacc (muted), fadi (muted) ←

Zakim IRC Bot: On IRC I see fadi, bobbin, DavidJames, vassilios, lindstream, RRSAgent, Zakim, LuigiMontanez, PaulZH, george, jonphipps, martin, cygri, mhausenblas, hughb, ww, edsu, sandro, ←

Zakim IRC Bot: On the phone I see ??P3, LuigiMontanez, martin, George, edsu, ??P7, jonphipps, ??P8, bobbin, fadi, brand ←

Zakim IRC Bot: On IRC I see fadi, bobbin, DavidJames, vassilios, lindstream, RRSAgent, Zakim, LuigiMontanez, PaulZH, george, jonphipps, martin, cygri, mhausenblas, hughb, ww, edsu, sandro, ←

Richard Cyganiak: there wasn't a clear consensus at the end of the last call, about defining an abstract vocabulary about the data you find in catalogs, and then we could have several different documents that explain how you could use these terms in a concrete syntax: rdf/xml, rdfa, atom, etc ←

... erik suggested we should be clear about the types of serices we want to enable ←

... a second thing could be an rdf vocabulary and reference that lists the terms, which required/optional, examples ←

... it would make sense to use some sort of formalism, uml, or perhaps rdf schema, since it will give us one possible way of deploying dcat data ←

... in the email the choice of concrete format maybe we should not decide on this yet ... if we have some clear requirements for using syndication formats for example ; or if we can do everything with rdfa -- it's hard to say before we know what requirements we have ←

... do you think we could delay the decision about the concrete format until we do use cases requuirements? ←

Richard Cyganiak: i think by writing down use cases and requirements we'll get a better understanding about technical choices ←

Richard Cyganiak: yes, basically we're discussing whether we should abstract out of the concrete syntax, and write use cases and requirements ←

Zakim IRC Bot: On the phone I see ??P3, LuigiMontanez, martin, George, edsu, ??P7, jonphipps (muted), ??P8, bobbin, fadi (muted), brand, LI_DING ←

Li Ding: i'd need more time to review the proposal, but i think we want to keep things as minimal as possible to get something out there quick, also i think we should keep use cases simple, how much do we want to get? ←

Richard Cyganiak: i don't hear any strong objection to moving forwards with the deliverables i outlined in the email ; for now we should continue working with this assumption ←

Li Ding: maybe we can have a challenge a deliverable: how many gov't data sets can you find? ←

... lets grow the number of government data sets, more people using the vocabulary ←

Vassilios Peristeras: i think it is not a matter of number of datasets but number of catalogues ←

Li Ding: it's a parallel effort: one side we grow the datasets, and on the other we develop the terminology, vocabulary that can be used ←

Richard Cyganiak: DavidJames you asked whether we should do a vote, i'm not sure what point this would serve ←

Richard Cyganiak: i think this is something i'd like to do on the next call, rather than rushing it ←

Richard Cyganiak: we want to have use case or stories for what people want to be able to do: for example i want to be able to get a list of datasets from data.gov that are not supported by the current data.gov user interface ←

Vassilios Peristeras: i'd like to be able to query multiple catalogs, to be able to query other geographic regions ←

Richard Cyganiak: so you want to be able to federate national catalogs into say a european union catalog? ←

George Thomas: (fed/state/local) gov agency independently published catalog using (some set of standard) vocab for dynamic aggregation of catalogs ←

George Thomas: would like to see bottom up (as per Li - in use) drive basic (extensible) rdfs vocab convergence for w3c blessing ←

David James: for the nationaldatacatalog we'd like to consume data from other data catalogs, we'd like to have one uniform way of getting at catalog data ←

... for municipalities and state governments we'd like to do a similar thing, enabling federation across many levels ←

George Thomas: i think i share the interest that david and luigi have ; would be great to have some sort of vocabulary at the w3c that reflects what's in use as much as possible ←

Martín Álvarez: i think federation is soemthing i would like to do ; i agree with vassilios with his approach ←

Richard Cyganiak: it might be a good next step to draft this use case as a little document, to sketch how it could look in practice as a story ←

... there are a couple of other use cases on the mailing list, maybe we can get those into written form too ←

Vassilios Peristeras: and i thin kit is more or less the same whether we speak about EU or USA ←

Richard Cyganiak: would be great if you could start it, and we could see if other use cases are covered ←

Trackbot IRC Bot: Could not create new action (unparseable data in server response: No child element named 'id') - please contact sysreq with the details of what happened. ←

Richard Cyganiak: great, there is a page where i've copy pasted stuff from the email, i propose we add subsections there, use this as a live document ←

Richard Cyganiak: ok, chairing a teleconference from a conference hallway is a bad idea. i won't try that again :-) ←

Richard Cyganiak: edsu, yes, many interesting things going on. great conference so far ←

Richard Cyganiak: have you and Li had a chance to chat about stuff informally? ←

Richard Cyganiak: edsu, yes we had dinner yesterday and are planning a few things ←

Richard Cyganiak: i think having you and Li on the same page will help a great deal ←

Zakim IRC Bot: Attendees were +1.202.955.aaaa, martin, George, +03539149aabb, edsu, jonphipps, +1.425.378.aacc, +03539149aadd, fadi, LuigiMontanez, +1.202.564.aaee, brand, bobbin, davidjames, ←

Ed Summers: sorry wasn't able to make it today [ Scribe Assist by Unknown ww ] ←

Unknown ww: would have liked to bring up the spatial/temporal ambiguity of dcat:granularity though ←

Richard Cyganiak: do you think it would be reasonable to distinguish between spatial and temporal granularity/resolution in dcat? [ Scribe Assist by Unknown ww ] ←

Unknown ww: (nevermind datasets that have different granularity on their different axes, which happens with some envionmental satellite datasets for example) ←

Richard Cyganiak: ww, i'll have to talk to fadi to remember why we didn't distinguish them. can i get back to you about this next week? ←

Unknown ww: using the talis changeset, vocabulary, for example, changes are expressed as additions and removals of reified triples ←

Unknown ww: i need a way to express the graph that those triples are supposed to live in ←

Unknown ww: I suppose because I believe that named graphs were added after the rdf core vocabulary was etched in stone ←

Unknown ww: for my immediate purposes I've invented a namespace for this, but... ←

eGovernment Interest Group Teleconference

Minutes of 29 April 2010

1. Admin

2. Demos

3. Deliverables

4. Use Cases