W3C

- DRAFT -

Web Services Description WG

14 Apr 2005

Agenda

See also: IRC log

Attendees

Present
Amelia_Lewis, T_Jordahl, Dbooth, Hugo, Allen_Brookes, Ugo_Corda, D_Moberg, Jonathan_Marsh, Roberto, Jacek, A_Ryman, Charlton_Barreto, asir, Adi_Sakala, Canon, +1.947.778.aaaa, Dave_Orchard, Anish
Regrets
Chair
Jonathan
Scribe
Hugo

Contents


 

 

<scribe> Scribe: Hugo

<dorchard> I'll call in for the serialization part of the agenda.

Approval of minutes

April 7 telcon minutes approved

Review of Action items

Jonathan: A lot of action items were due today, and unfortunately, quite a few weren't done

[ Chair calling names of people not on the call ]

scribe: Jacek, how about the RDF mapping?

Jacek: I think that this action item can be retired

<Marsh> ACTION: Marsh to put RDF mapping on the agenda for next week [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action01]

Jonathan: I'll ask Bijan for a status update next week

<Marsh> ACTION: WG to despair over the RDF mapping WG. [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action02]

Jonathan: Microsoft is not planning on support the HTTP binding in Indigo (as a response to "DaveO to query MS whether they would support part of the HTTP binding if divided, due 2005-04-13.")

[ Chair continues going through AIs ]

<scribe> ACTION: Arthur to evaluate text from Amy on schemaLocation; due 2005-04-21 [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action03]

Jonathan: w.r.t. the Berlin F2F, we're not meeting on the Monday anymore
... that should be helping people to get there in time

<dbooth> s/zakim,/zakim/ (dbooth has no interest in 420)

Jonathan: BTW, HP has resigned from the WG

Administrivia

Jonathan: I sent out a draft agenda
... http://lists.w3.org/Archives/Public/www-ws-desc/2005Apr/0063.html

<DaveO> could we move the HTTP issues earlier? I have a 2pm flight on Friday and we usually slip the schedule..

Jonathan: I'm going to try to limit discussion on issues to say 30 minutes
... if we can't reach a conclusion, I'll send it back to the list

Last Call Issues

Jonathan: I added LC119 & LC120

Editorial issue resolutions

WG agrees to close issues listed in the agenda

WG agrees to refer issues listed in the agenda to the editors

Jonathan: Arthur, any comments about LC113?

Arthur: I think that Glen has to work on this

Jonathan: is Arthur's solution OK with the WG?

Asir: is my suggestion in there?

Arthur: yes

RESOLUTION: LC113's resolution accepted

Media Type Description issues

Agreement to do it next week at the F2F

Issue LC77a: Namespaced elements and urlformencoded

Jonathan: we have 5 proposals on the table (see agenda)

Tom: I like the idea of ignoring the namespace prefix, but I'm worried about the risks
... otherwise, disallowing them seems good to me

DaveO: not allowing ns's is going to prevent a large number of use cases

Jonathan: the issues come up when you're mixing ns's

Asir: status quo is not broken, but needs clarification
... we can live with 2 or 4

<Zakim> dbooth, you wanted to say disallowing is safer than ignoring

David: I'm very concerned about option 2, it can bring undetected errors

Hugo: I think we should do it well or not at all, i.e. 5 or 4

Arthur I like option 5

<uyalcina> +1 to Hugo

<Zakim> JacekK, you wanted to note how option 4 is unnecessary

JacekK: you said that we only allow local elements
... it makes option 4 unnecessary

Asir: local elements can have a namespace

JacekK: yes, but they're all the same

Asir: oh, you're right
... but you may be able to derive types, in which case you're not right anymore

JacekK: then I think that we should limit to only one namespace then

<Zakim> DaveO, you wanted to respond to the "guarantee" issue

Jonathan: it's kind of a variation on option 4

DaveO: I didn't get Hugo's comments about guaranties

Hugo: schema doesn't know about prefixes at the abstract level

DaveO: in the simple scenario, you use the schema prefixes from the serialization of an instance

Arthur: it's unworkable

DaveO: I like option 5 to all other options
... however, I'd like to keep it as simple as possible

Roberto: 5 is fine but too complex

<Zakim> Marsh, you wanted to propose 2a, (2) + require unique localNames

Roberto: 3 is nice from the matter

<Marsh> 2b: (2) + single namespace?

Roberto: I'd like to propose (2) + require unique localNames

Umit: does that restrict it to a single ns?

<DaveO> local names must be unique, kind of like "ID" values..

Roberto: no, you can have bar:foo and foo:bar serialized as foo and bar

<DaveO> <bar:foo><any> means <any> can't be <*:foo>

<Marsh> 2c: (2) + require names to be uniquely mappable to QNames (unique names unless order can disambiguate)

Dave: that would disallow wildcards

Roberto: wildcards are bad anyway

Jonathan: presents 2c

<Zakim> asir, you wanted to introduce something related

Asir: we serialize the HTTP headers by ignoring the namespaces
... if we want to keep it consistant, then we should go with option 2

Umit: we didn't know what we were doing

Asir: I think we had a similar discussion

<Zakim> dbooth, you wanted to say Uniqueness can have subtleties: Uniqueness within what context? E.g., if schema SA allows B as child of A, but schema SB does not permit B as child of A.

<DaveO> is there combination of #2 and #5, where the client can send the prefix OR the namespace name?

Arthur: we would need a computable restriction in any case for uniqueness checking

David: I agree, uniqueness can be tricky
... but the direction is reasonable

Jonathan: it seems that we have people unhappy with a lot of our options
... we're looking at variations of option 2, option 5 is still on the table

Dave: I'd like to summarize the proposals and we could talk about it next week

<scribe> ACTION: DaveO to summarize LC77a options; due date 2005-04-21 [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action04]

Issue LC99: Message Reference Component is Underspecified

http://lists.w3.org/Archives/Public/www-ws-desc/2005Mar/0115.html

Arthur: I think it should be required in the component model
... then there's the schema: either required or sensible default

Roberto: the {message content model} only makes sense if you're using an XML-based data model

Jonathan: so you're arguing that we just need a clarification

Arthur: so I think that the spec should say what the meaning of empty is: other

Tom: I think that empty should be equivalent to #none

<dbooth> Roberto, so you are saying that empty == unspecified?

Jonathan: if it's missing, it means that it's using a different type system

Arthur: I'd like to withdraw my proposal and take Roberto's suggestion as an AI

<charlton> +1 to empty == different type system

DavidB: so empty is unspecified

Arthur: we should add a #other value; we're overloading the meaning of empty here

<scribe> ACTION: Arthur to present a new proposal for LC99; due 2005-04-21 [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action05]

Issue LC74a: I18N Comments, WSDL 2.0 Part I (partial)

Jonathan: Asir, can you clarify anyUri's issues with IRI?

Asir: there some differences between 2396 and 3896
... it's possible that Schema will issue an erratum for Schema 1.0
... or will do it for 1.1

Jonathan: can we be ignorant?

Asir: I think so; we could go to the XML CG
... I've seen a proposal from XML Core about this

Jonathan: we should be able to make a decision then
... I had some comments about where IRIs are correct
... let's finish that one up at the F2F
... http://lists.w3.org/Archives/Public/www-ws-desc/2005Apr/0057.html

Issue LC80: Extension Components are not Described

http://lists.w3.org/Archives/Public/www-ws-desc/2005Apr/0056.html

Jonathan: what does this give us?

Arthur: extensions are more composable with each other
... also, all the extensions that we described follow this pattern
... so it seems general enough

<Tomj> +1 on making the language uniform

Hugo: what's the impact on Part 2?

Arthur: be more explicit on the types of extension components
... specify where they're extensible

Jonathan: let's decide on this next week

Issue LC69b: XForms comments on (WSDL) Version 2.0 Part 3: Bindings

http://lists.w3.org/Archives/Public/www-ws-desc/2005Apr/0049.html

Proposal: close LC69b with no action

RESOLUTION: LC69b closed with no action

Issue LC75g: RPC should allow element wildcards

http://lists.w3.org/Archives/Public/www-ws-desc/2005Mar/0038.html

Roberto: I want to allow element wildcard on input only

Jonathan: anybody objecting?

Asir: should we allow it on output too?

Roberto: this proposal only deals with input

Tom: this will make a lot of work for the implements

Jonathan: then please bring the issue up

Summary of Action Items

[NEW] ACTION: Arthur to evaluate text from Amy on schemaLocation; due 2005-04-21 [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action03]
[NEW] ACTION: Arthur to present a new proposal for LC99; due 2005-04-21 [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action05]
[NEW] ACTION: DaveO to summarize LC77a options; due date 2005-04-21 [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action04]
[NEW] ACTION: Marsh to put RDF mapping on the agenda for next week [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action01]
[NEW] ACTION: WG to despair over the RDF mapping WG. [recorded in http://www.w3.org/2005/04/14-ws-desc-minutes.html#action02]
 
[End of minutes]

Minutes formatted by David Booth's scribe.perl version 1.122 (CVS log)
$Date: 2005/04/14 16:32:42 $

Scribe.perl diagnostic output

[Delete this section before finalizing the minutes.]
This is scribe.perl Revision: 1.122  of Date: 2005/03/31 04:43:41  
Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/

Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/schemaLocation/schemaLocation; due 2005-04-21/
WARNING: Bad s/// command: s/zakim,/zakim/    (dbooth has no interest in 420)
Succeeded: s/Asir:/Arthur/
Succeeded: s/Dave:/DaveO:/g
Succeeded: s/to/with/
Succeeded: s/AU/AI/
Succeeded: s/David/DavidB/
Succeeded: s/uniformed/uniform/
Found Scribe: Hugo
Inferring ScribeNick: hugo
Default Present: Amelia_Lewis, T_Jordahl, Dbooth, Hugo, Allen_Brookes, Ugo_Corda, D_Moberg, Jonathan_Marsh, Roberto, Jacek, A_Ryman, Charlton_Barreto, asir, Adi_Sakala, Canon, +1.947.778.aaaa, Dave_Orchard, Anish
Present: Amelia_Lewis T_Jordahl Dbooth Hugo Allen_Brookes Ugo_Corda D_Moberg Jonathan_Marsh Roberto Jacek A_Ryman Charlton_Barreto asir Adi_Sakala Canon +1.947.778.aaaa Dave_Orchard Anish
Agenda: http://lists.w3.org/Archives/Public/www-ws-desc/2005Apr/0062.html
Got date from IRC log name: 14 Apr 2005
Guessing minutes URL: http://www.w3.org/2005/04/14-ws-desc-minutes.html
People with action items: arthur daveo marsh wg

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