Hierarchically Structured Production Rules
Philip Leith · The Computer Journal · 1983
Production rules when used in ‘Expert Systems’1 have shown themselves to be effective means of encapsulating an expert's ‘knowledge’ about how to solve a problem. The ELI (Expert Legislative Information) system uses a novel means of hierarchically structuring these production rules which: (i) allows the production rules to be accessed in a parallel manner; (ii) allows the production rules to self-control access; (iii) allows each condition in the production to represent a richer semantic body of information than traditional production rule systems. In this paper, I discuss the notion of knowledge engineering and why hierarchically structured production rules can be useful.