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Yes, modeling wife as a subclass of female may not be the right thing to do. Another option in either RDF or OWL is for wife or husband to be modeled as a property of male/female. It could then be said (using, for example, domain - range restrictions of RDF) that wife's must be females and husband's must be males. Irene Polikoff -----Original Message----- From: Michael Kay [mailto:michael.h.kay@n...] Sent: Thursday, February 26, 2004 4:58 AM To: 'Chiusano Joseph'; 'Pedro Salazar' Cc: xml-dev@l... Subject: RE: semantics in schema (xsd) # classes in RDF or # OWL (where a wife could be a subclass of female, for example). Creating a class hierarchy in which objects are classified according to mutable properties of the object is not normally recommended practice. Or do RDF/OWL allow an object to change its class over time? Michael Kay ----------------------------------------------------------------- The xml-dev list is sponsored by XML.org <http://www.xml.org>, an initiative of OASIS <http://www.oasis-open.org> The list archives are at http://lists.xml.org/archives/xml-dev/ To subscribe or unsubscribe from this list use the subscription manager: <http://www.oasis-open.org/mlmanage/index.php>
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