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Knowledge base system for setting attribute value derivation data independently from attribute value derivation procedure and shared data management apparatus for selectively locking attribute

  • US 5,651,101 A
  • Filed: 08/30/1995
  • Issued: 07/22/1997
  • Est. Priority Date: 08/31/1994
  • Status: Expired due to Fees
First Claim
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1. A knowledge base system comprising:

  • means for setting method-to-derive-attribute-value of a procedure inherent for an attribute for deriving an attribute value at each attribute defined for each class in a knowledge base;

    means for setting data-for-value-derivation referred by the method-to-derive-attribute-value thus set independently from said method-to-derive-attribute-value at each class defined or inherited by the attribute; and

    means for setting an attribute value of each attribute of an instance by deriving the attribute value by referring to the data-for-value-derivation to be input as specification of said instance or the data-for-value-derivation set to the attribute of said class corresponding to said instance and deriving the attribute value by executing said method-to-derive-attribute-value at each attribute when the instance is prepared as novel or altered.

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