IRC log of RDB2RDF on 2008-10-31

Timestamps are in UTC.

07:35:21 [RRSAgent]
RRSAgent has joined #RDB2RDF
07:35:22 [RRSAgent]
logging to http://www.w3.org/2008/10/31-RDB2RDF-irc
07:37:20 [Ashok]
meeting: RDB2RDF
07:37:34 [Ashok]
chait Ashok Malhotra
07:39:53 [Ashok]
chair: Ashok Malhotra
07:41:58 [mhausenblas]
mhausenblas has joined #rdb2rdf
07:42:21 [mhausenblas]
rrsagent, draft minutes
07:42:21 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
07:42:26 [Cathy]
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07:42:49 [mhausenblas]
Ashok: Continue our work
07:43:06 [mhausenblas]
rrsagent, make minutes public
07:43:06 [RRSAgent]
I'm logging. I don't understand 'make minutes public', mhausenblas. Try /msg RRSAgent help
07:44:25 [mhausenblas]
rrsagent, make record public
07:45:09 [mhausenblas]
scribenick: mhausenblas
07:45:14 [mhausenblas]
chair: Ashok
07:45:57 [mhausenblas]
Meeting: RDB2RDF XG F2F Karlsruhe
07:46:18 [mhausenblas]
rrsagent, draft minutes
07:46:18 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
07:47:23 [MatthiasHert]
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07:47:34 [mhausenblas]
Topic: Creating Identifiers
07:48:23 [mhausenblas]
Ashok: Add requirement 'The language must allow for a mechanism to create identifiers for DB entities'
07:49:11 [mhausenblas]
Themis: liasion with the OKKAM project that do ENS
07:49:37 [mhausenblas]
Orri: should promote the reuse of identifiers
07:51:46 [mhausenblas]
Themis: use unquie IDs, that is one URI for an entity rather than minting own URIs and connecting it via owl:sameAs
07:52:23 [mhausenblas]
Orri: though owl:sameAs is not a good thing it is necessary
07:53:44 [mhausenblas]
Michael: I have an action on this
07:54:36 [whalb]
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07:54:43 [mhausenblas]
Ashok: reuse for 'long-lived' entities such as persons, corporations
07:55:35 [mhausenblas]
Ashok: propose to phrase the requirement as follows
07:56:57 [mhausenblas]
... 'The language must allow for a mechanism to create identifiers for DB entities. Where possible, the language will encourage the reuse of public identifiers for long-lived entities such as persons, corporations.'
07:56:59 [juan]
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07:59:33 [mhausenblas]
RESOLUTION: 'The language must allow for a mechanism to create identifiers for DB entities. Where possible, the language will encourage the reuse of public identifiers for long-lived entities such as persons, corporations.'
07:59:57 [mhausenblas]
Ashok: we will coopertate with OKKAM on that
08:01:21 [mhausenblas]
Topic: Other Language Requirements
08:02:09 [mhausenblas]
Ashok: propose to state that we will 'standardize a language for mapping RDB languages to RDF/OWL'
08:02:31 [mhausenblas]
Soeren: learning curve should be low
08:03:02 [mhausenblas]
Juan: Should have different levels/profiles
08:03:07 [mhausenblas]
Michael: +1
08:04:05 [mhausenblas]
Ashok: 'The language will have a human-readable syntax as well as an XML or RDF syntax'
08:05:47 [mhausenblas]
Orri: add to this that 'the output will be defined in terms of an RDFS/OWL schema'
08:06:02 [juan]
Juan: +1
08:07:42 [mhausenblas]
Michael: important to offer different levels of expressivity for different use cases
08:13:18 [mhausenblas]
Ashok: so we add 'It should be possible to subset the language for simple applications such as Web 2.0. The language will be validated by creating a library of mappings for widely used apps such as Drupal, Wordpress, phpBB.'
08:14:09 [Ashok]
s/defined in terms/described by/
08:14:13 [mhausenblas]
Michael: the lib can then be used for our test cases as well (volunteer to take over that part ;)
08:14:28 [mhausenblas]
rrsagent, draft minutes
08:14:28 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
08:16:35 [mhausenblas]
Jenny: So we are not being explicit about XML or RDF?
08:16:50 [mhausenblas]
Michael: could use GRDDL to connect these both
08:21:10 [mhausenblas]
rrsagent, draft minutes
08:21:10 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
08:22:12 [mhausenblas]
Orri: using XML as a base and provide a possibly non-complete mapping to RDF
08:31:16 [mhausenblas]
Ashok: 'The language will have a human-readable syntax as well as an XML and RDF representation for purposes of discovery and automatic generation'
08:32:22 [mhausenblas]
Michael: +1
08:32:30 [juan]
Juan: +1
08:32:47 [mhausenblas]
RESOLUTION: The language will have a human-readable syntax as well as an XML and RDF representation for purposes of discovery and automatic generation.
08:32:55 [mhausenblas]
rrsagent, draft minutes
08:32:55 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
08:38:14 [mhausenblas]
Ivan: we should add 'language should be complete regarding the expressivity of relational algebra'
08:41:47 [mhausenblas]
Ashok: ok, let's move on ... 'the language will allow customization wrt names, data manipulation.'
08:42:01 [mhausenblas]
Orri: extensibility is important
08:52:25 [mhausenblas]
Ashok: 'the language must be able to expose vendor specific SQL features such as full-text, spatial support, user-defined datatypes.'
08:55:55 [mhausenblas]
Michael: +1
09:06:15 [Soeren]
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09:09:12 [mhausenblas]
Ashok: 'The mapping should allow the introduction of additional semantics, for example sub-classes, sub-properties, transitivity by utilising logics such as rules or DL languages.'
09:10:02 [mhausenblas]
Michael: +1
09:10:02 [Cathy]
+1
09:10:11 [juan]
Juan: +1
09:11:03 [mhausenblas]
RESOLUTION: 'The mapping should allow the introduction of additional semantics, for example sub-classes, sub-properties, transitivity by utilising logics such as rules or DL languages.'
09:11:17 [mhausenblas]
rrsagent, draft minutes
09:11:17 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
09:20:31 [mhausenblas]
Ashok: Two more issues left
09:23:04 [mhausenblas]
... include non-relational data?
09:24:05 [mhausenblas]
[[Discussion of possible use cases such as spreadsheets, etc. - the XG thinks that we will not address this]]
09:29:49 [mhausenblas]
Ashok: last (motivated by Bijan's presentation)
09:31:08 [mhausenblas]
... 'language spec should include guidance to mapping to a sbu-set of OWL such as OQL/QL or OWL/RL'
09:38:50 [mhausenblas]
Michael: If we want to include that we need to be aware of the fact that the test cases are actually for agreeing on the concrete impact of a certain language feature. The spec is human-readable, implementors have some freedom in implementing it.
09:38:57 [mhausenblas]
rrsagent, draft minutes
09:38:57 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
09:39:13 [Zakim]
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09:43:03 [mhausenblas]
Ashok: 'the WG must track the evolution of SPARQL and liaise with the DAWG'
09:43:08 [mhausenblas]
Michael: +1
09:44:35 [mhausenblas]
Michael: what about linked data?
09:45:44 [mhausenblas]
Orri: propose to add 'the language should be designed to support the implementation of the linked data princinpes http://www.w3.org/DesignIssues/LinkedData.html'
09:46:13 [mhausenblas]
s/princinpes/principles
09:47:16 [mhausenblas]
rrsagent, draft minutes
09:47:16 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
09:48:38 [mhausenblas]
ACTION: Ashok to produce a summary of the agreed issues (requirements) on the Wiki and send it to the XG for reviewing
09:48:40 [mhausenblas]
rrsagent, draft minutes
09:48:40 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
09:49:42 [mhausenblas]
present+ Cathy
09:49:54 [mhausenblas]
present+ Ashok
09:49:59 [mhausenblas]
present+ Juan
09:50:04 [mhausenblas]
present+ Jenny
09:50:09 [mhausenblas]
present+ Michael
09:50:21 [mhausenblas]
present+ Matthias
09:50:26 [mhausenblas]
present+ Ivan
09:53:25 [mhausenblas]
present+ Yrjana
09:53:32 [Ashok]
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09:53:34 [mhausenblas]
rrsagent, draft minutes
09:53:34 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
09:54:12 [mhausenblas]
present+ Soeren
09:54:15 [mhausenblas]
present+ Orri
09:54:16 [mhausenblas]
rrsagent, draft minutes
09:54:16 [RRSAgent]
I have made the request to generate http://www.w3.org/2008/10/31-RDB2RDF-minutes.html mhausenblas
09:55:52 [mhausenblas]
[adjourned]
09:55:57 [mhausenblas]
RRSagent, bye
09:55:57 [RRSAgent]
I see 1 open action item saved in http://www.w3.org/2008/10/31-RDB2RDF-actions.rdf :
09:55:57 [RRSAgent]
ACTION: Ashok to produce a summary of the agreed issues (requirements) on the Wiki and send it to the XG for reviewing [1]
09:55:57 [RRSAgent]
recorded in http://www.w3.org/2008/10/31-RDB2RDF-irc#T09-48-38