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[protege-owl] SWRL Advantages

Thomas Russ tar at ISI.EDU
Mon Jan 11 14:39:08 PST 2010

On Jan 11, 2010, at 1:52 PM, Rodolfo Rieckhof wrote:

> Hello,
> i am new to OWL, SWRL and would like to know what advantages have  
> SWRL over OWL if any. One more question that i have would be, is  
> there anything that i can only specify in SWRL but not in OWL ? i  
> would appreciate a little example about this one.

SWRL adds additional expressive power.

One example of that is expressing constraints across fillers of two  
different properties.  For example, "a Person whose boss is his  
brother" is not something that can be written in OWL, since it is a  
constraint between fillers of two different properties.  You can,  
however, express this constraint using SWRL.

Some other examples are constraints that involve numeric bounds on  
datatype properties in OWL 1.0 (possible in OWL 2.0).  Also, any  
constraints that involve a computation.

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