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. 1. INTRODUCTION Operator training in complex dynamic systems typically does not produce expert operators (Di Bello, 1997; Hutchins, 1995). Indeed, formal training is often designed suc..