The Case-based Intelligent Tutoring System: an Architecture for Developing and Maintaining Operator Expertise

The Case-Based Intelligent Tutoring System (CB-ITS) is a proposed architecture for a computer-based training system for operators of complex dynamic systems. Intended for individuals who have already completed formal training, the goal of the CB-ITS is to help operators enhance and maintain expertise. The CB-ITS provides experience with prototypical and unusual operational situations (cases). The CB-ITS includes a simulator that allows a student to experience and practice the cases under the guidance of a computer-based tutor. The architecture uses the operator function model and OFMspert to provide intelligence and instructional control. This paper describes the CB-ITS architecture and enhancements to the operator function model and OFMspert to support an intelligent tutor that uses cases as pedagogy.