[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: XML Schemas: Best Practices
Which in effect says that while I might create a universal definition of car, and even put it in a class of vehicle, on up to System.Object, the definition will be very thin and the vehicle, thinner. Interface and implementation inheritance have to be different things or we are back to a tight coupling. Now one has to decide if it is worth carrying around a lot of abstractions in the system, or if it is really ONE system at all. The locality of politics and the utility of federated interfaces outweighs the usefulness of universal semantics. A thesaurus service on the other hand, has a lot of utility to a designer who needs to create a virtual reality simulation of the automobiles provided from an auto manufacturers' engineering department to a car rental agency that rents cars to driver's ed departments. Might be nice to know which template in the transform to apply. Len http://www.mp3.com/LenBullard Ekam sat.h, Vipraah bahudhaa vadanti. Daamyata. Datta. Dayadhvam.h -----Original Message----- From: Joe English [mailto:jenglish@f...] Jonathan Borden wrote: > One simply cannot expect the term "car" to have a universally defined > meaning. Do you intend this to mean an automobile or the contents of the > address register? Unless you place the term in context there is no > reasonable way to disambiguate. Even disregarding homonyms this is an issue -- a car rental agency, an auto manufacturer's engineering department, a state department of motor vehicles, and a virtual-reality simulation for driver's ed all have software systems that deal with cars in the "automobiles" sense, yet there will be very little in common between the various data models used to represent them in the respective systems. In other words, a <DMV:car> won't be anything like a <VR:car>, even though they are used to represent the same Platonic objects.
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