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[protege-discussion] Fwd: Help with predicates

Samson Tu swt at stanford.edu
Thu Oct 29 15:32:34 PDT 2009


Ingrid Durley Torres Pardo wrote:
> Hello everyone again
> 
> On this question, I give more details what I need to express in the 
> predicate:
> 
> 1. is that having an active session requires a server, a client and an 
> identifier for the customer. (ActiveSession ?Server ?Client ?SesionID).
> 
> 2.A user has a credential server requires a client, a user name and 
> password of user
>    (UserCredential ?Client ?Server ?Username ?Password)
> 
> 
> That is both predicates express tuples 3 and 4 elements. How do I do 
> this in OWL?
> 


See [1] for a description of how to model n-ary relations in OWL.

[1] http://www.w3.org/TR/swbp-n-aryRelations/

Samson




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