Reference: Tu, S. W.; Kahn, M. G.; Musen, M. A.; Ferguson, J. C.; Shortliffe, E. H.; & Fagan, L. M. Episodic Skeletal-Plan Refinement Based on Temporal Data. 1989.
Abstract: ONCOCIN is a medical expert system that extends the skeletal-planning technique to an application area where the history of past events and the duration of actions are important. The system's knowledge base is designed to reflect a hierarchial model of the domain, and its control and inference mechanisms encourage a mixed-initiative style of interaction between the computer and the user.
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