Maintaining Procedural Knowledge: Ripple-down-functions
نویسنده
چکیده
Research into the maintenance of procedural knowledge has focused on the detection of declarative meta-structures within the procedures. An alternative approach is described here based on the ripple-down-rules (RDR) formalism. To the standard RDR rule tree, we add a functions environment hierarchy that stores the implementation of the procedures used in the rules. This functions environment structures the evolution of functions and scopes the effect of a newer version of a procedure to the rules that require it. We describe implementation techniques for the maintenance environment using commerciallyavailable tools.
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