Re: I guess it's a stupid questions.

Well I am a little "late" here, but we have a RDF context server api 
defined and we do these things all the time in the EPOS project

http://www3.dfki.uni-kl.de/epos

paper is "/Towards Goal Elicitation by User Observation/"
http://www.dfki.uni-kl.de/~schwarz/publikationen/index.html
http://serv-4100.dfki.uni-kl.de:8000/%7Edocbase/dokana/WWW/D00000678.pdf

we describe the context with an ontology (will be published 2006) and we 
link the context to notes, emails, etc.

A small version of "context" is the usermind in www.gnowsis.org

In the next gnowsis release (march, april 2006) we will publish the api.

to sum it up:

+ Context comes from looking what the user is doing
+ context is documents, topics, SKOS (we use skos to describe the 
concepts linked to context)
+ time context - everything related in a timeline is related
+ more to come.....

if you have deeper questions on context, mailto Sven Schwarz or me.

cheers
Leo


Es begab sich aber zu der Zeit 19.11.2004 01:36,  da Dirk-Willem van 
Gulik schrieb:

>
>On Tue, 16 Nov 2004, Stefano Mazzocchi wrote:
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>>>I would be quite surprised if I were the only person on this planet with
>>>this problem...
>>>      
>>>
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>>Oh, you are not.
>>    
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>Aye - another +1 here.
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>>And I have to add, context is important not only in terms of location
>>(space) but also version (time).
>>    
>>
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>>reifications and that I think that the fact that they are not practical
>>might be a matter of implementation, not of a spec.
>>    
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>Implementation of some form of Context - be it source, provenance, time,
>version - and beeing able to address a set of facts/triples by means of
>say, the file/uri they came from, in facts makes the creation of practical
>tools required for an actual operational system much easier.
>
>  
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>>I think it would be a mistake to specify what context is by harcoding
>>one more metadata field to every statement. What next? what about
>>licensing restrictions on the time about the change of the context of
>>the statement?
>>
>>the queries will get hairy, agreed, but context is something you know
>>when you query, what you know where you enter data is just metadata
>>about statements, and that's exactly what reification is all about.
>>    
>>
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>Context is hairy - the real world is hairy - but that is not a reason not
>to go out and tackle it ;)
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>Dw.
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