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Gap device helps in making a classification scheme more :

  • A.Faceted
  • B.Hierarchical
  • C.Hospitable
  • D.Enumerative

Answer: C

Gap devices make a classification scheme more hospitable.

Hospitality is the ability of a scheme to fit new subjects into the right place without disturbing existing class numbers. The gap device leaves unused numbers or digits in an array of the notation, so that a new subject that arises later can be given one of the vacant numbers at its proper position.

Gap devices do not make a scheme faceted, which depends on analysing subjects into facets, nor more hierarchical, which concerns the expression of subordination in the notation. An enumerative scheme lists its classes in advance; leaving gaps is a stop-gap within such schemes, not what makes them enumerative.

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