PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This is an easy way to tell if the user is using a particular major release of the OS, since Apple has yet to distribute a completely new AppKit with a point release of the OS. This method is also portable to GNUstep and OpenStep, but on systems other than Mac OS X, the AppKit version should never be used to infer the OS version; it should only be used if you want to use a feature of the AppKit th
http://www.w3.org/ns/prov#wasQuotedFrom
  • cocoadevcentral.com