http://ontologydesignpatterns.org/index.php?action=history&feed=atom&title=Reviews%3AOlafNoppens_about_Symmetric_n-ary_relationshipReviews:OlafNoppens about Symmetric n-ary relationship - Revision history2026-05-14T13:38:36ZRevision history for this page on the wikiMediaWiki 1.25.6http://ontologydesignpatterns.org/index.php?title=Reviews:OlafNoppens_about_Symmetric_n-ary_relationship&diff=10105&oldid=prevOlafNoppens: New page: {{Content OP Proposal Review Template |CreationDate=2010/9/16 |SubmittedBy=OlafNoppens |ContentOPUnderReview=Symmetric n-ary relationship |RevisionID=10066 |Score=0 - needs major revision ...2010-09-16T12:54:55Z<p>New page: {{Content OP Proposal Review Template |CreationDate=2010/9/16 |SubmittedBy=OlafNoppens |ContentOPUnderReview=Symmetric n-ary relationship |RevisionID=10066 |Score=0 - needs major revision ...</p>
<p><b>New page</b></p><div>{{Content OP Proposal Review Template<br />
|CreationDate=2010/9/16<br />
|SubmittedBy=OlafNoppens<br />
|ContentOPUnderReview=Symmetric n-ary relationship<br />
|RevisionID=10066<br />
|Score=0 - needs major revision<br />
|ReviewSummary=The patterns tries to express a symmetric n-ary relationship, i.e., that an individual A is related to an individual B with some additional attributes, and that B is related to A with exactly the same attributes. As a matter of course, it can be modelled with a traditional n-ary relationship pattern - but the symmetry has to be modelled explicitly. The patterns tries to eliminate this kind of redundancy.<br />
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However, it is not clear what the semantics of a "symmetric n-ary relationship" is. The use case (connection points and their distance) can't help because there are no n arguments. In that sense I understand it as a binary relationship with an additional attribute. The name "symmetric n-nary relationship" is misleading.<br />
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But even then it is not clear how the symmetry is guaranteered with the equivalent axiom: It seems to be a special case of a n-ary relationship where two instantiations wrt. one property is demanded.<br />
|ReviewConfidence=high<br />
|ReviewProblems=As already said the main problem is the semantics of a "symmetric n-ary relationship". It also lacks for an explanation/proof of the implementation (which is not clear for me).<br />
|ReviewRelevance=high<br />
|ReviewMissing=As the pattern is related to the W3C n-ary relationship I suggest to use the same type of diagram and/or examples. Moreover, an example in OWL and/or OWL building blocks are missing.<br />
}}</div>OlafNoppens