Spatial Data on the Web Working Group (informal) Teleconference

<trackbot> Date: 19 August 2015

<Frans> I wonder if more people will show up

<scribe> scribe: phila

Frans: Main topic is the homework that people have been done
... It's not clear who is doing what homework. There were some action items but not for everyone

<Linda> There's some minor construction work going on in our office so it could be noisy in my background.

General agreement that we are not quorate so we'll have an informal chat

Cross referecning homework

Frans: I saw 2 action items

<Frans> http://www.w3.org/2015/spatial/track/actions/61

action-61?

<trackbot> action-61 -- Phil Archer to cross-reference "identifiers" issue with DoW and WA -- due 2015-08-19 -- OPEN

<trackbot> http://www.w3.org/2015/spatial/track/actions/61

<Linda> https://www.w3.org/2015/spatial/wiki/BP_Consolidated_Narratives

-> https://www.w3.org/2015/spatial/wiki/BP_Consolidated_Narratives Narratives Page

jtandy: There are 7 narratives on that page
... and an 8th that I haven't worked out what to do with yet. Was there any discussion about the other stuff

phila: Is pretty sure that no, the 'other stuff, hasn't been classified

jtandy: We can come back to the other stuff anotehr time. There are things there that we should cover. Like how to we handle large aounts of data that don't fit into an RDF-centric view of the world

Frans: We did discuss the narratives in general... one idea was to have the amateur vs expert perspective
... The big datasets might fit into the expert aspects of a data publisher

jtandy: And there's stuff that talks about lineage and provenance (the data linking bit). How to do linking when it's 5TB of LIDAR data

Frans: You could probably group a lot under such a narrative, a researcher wanting to publish data in a meaningful way
... It also seems realted to the diff between publishing a web page with some microdata and publishing an entire dataset through a service endpoint

jtandy: Any highlights about the discussions about the 7 narratives as laid out?

Frans: I don't think were discussed in depth. The main topics have been finding volunteers to do the cross referencing work
... And before that we discussed the nature of the narratives but that was before they took form.

jtandy: I think I have a quick run through 3 weeks ago.

<Frans> jtendy: current format of narratives looks a lot like the format of the Data on the Web BP

jtandy: Is DWBO meeting at TPAC?

how to communicate with the Data on the Web WG

phila: No.

jtandy: There are things that we want to say that may be applicable beyond spatial data, but we'll say it in the context of spatial data. DWBP might want to broaden it
... and we'd help them do that, but we should keep delivery decoupled

phila: Dependencies either way are bad

<Frans> phila: I think I am the only member of both groups

Discussion about DWBp relationship. Agreement that liaison doesn't mean dependencies.

If DWBP has a BP that is useful/applicable, SDW can cite it, modulo any changes that SDW might ask for

Problem only arises if the two BP docs present best practices that are not in alignment/contradictory

which is unlikely

<scribe> ACTION: Archer to invite Hadley Beeman to a meeting with the SDW WG at TPAC [recorded in http://www.w3.org/2015/08/19-sdw-minutes.html#action01]

<trackbot> Created ACTION-68 - Invite hadley beeman to a meeting with the sdw wg at tpac [on Phil Archer - due 2015-08-26].

Discussion of wiki page to be established to record areas where SDW thinks a Bp should/could/might like to cover an issue

Frans: The prob with the DWBP is that the scope is so broad

phila: Yes

Frans: So we should protect our scope
... I think it would be useful to list things that we think are important but that re out of scope for our WG

jtandy: That's a meta question for how to cross reference.
... I wonder whetehr we should go through the homework as best we can
... In terms of cross referencing, Kerry has put some stuff in about linking data, Ed has done the same about APIs, Linda has put in some stuff about enablign discovery
... Nothing on identifiers, spaitiotemporal
... Linda, could you talk us through what you discovered for enabling discovery

Linda: Mainly what I found was that the DWBP doc there was a big section about metadata
... the point of providing it, largely for discovery, so there's an overlap there
... so we should take a good look at thats section. And then maybe extend it with spatial aspects
... Anotehr thing they mentioned was that discovery depends fundamentally on the use of HTTP URIs - which is right

jtandy: Both of those sound like sensible observations. Extending existing BPs, and use of HTTP URIs which Phil is looking at
... I see there wasn't any coverage of Architecture of the Web/inconsistencies
... That's been around a long time and it's remarkably relevant today. So we need to be consistent with it if we're talking about spatial data on the Web.
... We are consistent with it

Linda: Yes, just more specific

jtandy: Are there other citable resources that we should be ... citing

Linda: I'd have to think about it.

phila: Maybe some OGC stuff?

Linda: Some OGC, INSPIRE??

jtandy: There's the DCAT-Geo-AP
... that's expressing ISO19115 plus DCAT etc.
... Things like DCAT-GeoAP should be consistent with what we're saying.

Frans: That looks like a BO to me already

jtandy: That's more than a BP
... It says if you're going to use 19115 attributes, then do it like this - that's more detailed than we want?

Frans: People are looking for that kind of guidance. It's a mapping from OGC to W3C mapping, it's what publishers are looking for
... I;m not saying that it is a BP, but it's a good candidate
... that might be identified in the deliverable

<Frans> Linda: missing discovery of data vs. discovery of data sets in DotWWG

phila: Bangs on about longevity, give examples, maybe on example - comply or explain maybe

<Frans> phila: yes, that is an issue and the DotWWG should tackle it

Linda: Does it talk about data on the Web cf. datasets on the web?

jtandy: Thank you for doing your homework. I was very pelased to see stuff happening even though i hadn't push it

<Frans> jtandy: pleased to see stuff happening

phila: (Kerry was pretty forceful last week)

jtandy: We could look through what Ed and Kerry wrote or do it offline

Frans: I think it makes more sense if more people are present
... esp Ed and Kerry as they wrote their contribution

jtandy: Ed has put in BP23, 26 and 22
... so he's been though it and put some brief notes in
... Regarding next week, I'll be on vacation again

phila: Me too

Frans: I am being forceful too - do your homework

<Linda> Me too - on vacation next week I mean

jtandy: 61 is identifiers - Phil
... 62 is same thing with Armin
... 63 is clear semantics, assigned to Bill, prob done before next week's meeting
... 64 is discovery that Linda has done

close action-64

<trackbot> Closed action-64.

jtandy: 65 is spatial and temporal info, that's Chris

Frans: I think he volunteered for temporal

Linda: Yes, but Kerry twisted his arm

jtandy: Chris is on holiday this week.
... Those issues are so specific they won't be covered anywhere else
... 66 is data exposed via APIs which is on Ed - because no one else took it
... 67 is linking data which is Kerry

Frans: Sensor data is still missing

jtandy: I know Payam and Kerry are involved in the SSN stuff
... Maybe we can ping Payam... but he's on holiday too

Frans: He's a co-editor of the BP doc

jtandy: We are making progress. Given that we want to have an FPWD by middle of October, time is of the essence
... I hope we'll have a structure, with the themes we'll be covering, maybe on of them drawn out

phila: Suggests a frozen copy by Friday 16th, but not formal publication until after TPAC

<Linda> +1

General agreement to this

<jtandy> +1

jtandy: I'd ask the chairs to promote that so people know what to expect

<jtandy> bye

<jtandy> will type ...

<jtandy> https://www.w3.org/2015/spatial/wiki/Working_Use_Cases#Provenance_of_climate_data_.28Best_Practice.2C_Time-series.2C_Observations.2C_Coverages.2C_Data_Provenance.2C_DOI.2C_Metadata.29

<jtandy> bye

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