title: HYDRA: a knowledge acquisition tool for expert systems that critique medical workup.
abstract: HYDRA is a computer-based knowledge acquisition tool under development to assist in the creation of expert systems which critique medical workup. To use HYDRA, a domain expert first outlines the recommended approaches to the workup of a chosen medical problem, using the Augmented Transition Network formalism. From this model, HYDRA produces a list of the various conditions for which critiquing comments may be required to react to all possible approaches that might be proposed by the user of the critiquing system. Domain-specific constraints can be used to restrict the number of conditions suggested. In this way, HYDRA assists the domain expert by providing a model for structuring the problem, and by breaking down the domain expert's work into a set of small, easily understood tasks.
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D003658:Decision Making, Computer-Assisted; D005103:Expert Systems; D006801:Humans; D008722:Methods; D008962:Models, Theoretical; D012985:Software Design