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Why is a computed taxonomy better than an asserted one?

  • A.It permits concepts to belong to several parents at once
  • B.It cannot become inconsistent with the concept definitions
  • C.It requires fewer concepts to be defined in the first place
  • D.It can be computed more quickly than a hierarchy can be read

Answer: B

If the hierarchy is derived from the definitions, it is impossible for a concept to be placed under a parent it does not actually specialise, which in a large hand built ontology happens constantly. Multiple inheritance is supported by both approaches. Concept counts and speed are secondary. Deriving a structure from its definitions rather than maintaining it separately removes a whole class of error, which is the same argument that favours generated over hand written code.

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