Multi-level, Modular Authoring for Scenario-Based Intelligent Tutoring Systems

Simulations and games are effective as training tools only when accompanied by considerable instructional support. This necessitates the presence of instructors to provide one-on-one help to students working with simulations. Much of the instructional support can be automated by Intelligent Tutoring Systems (ITSs). In order to realize the full benefits of the ITS technology, it is important to develop a generalized, modular, plug-and-play ITS architecture which can be interfaced with simulations with minimal programming effort. A modular architecture, along with ITS authoring tools for rapid customization of the ITS to specific domains, will significantly increase the cost-effectiveness of ITSs. This proposal presents a modular, interoperable ITS architecture that can be rapidly interfaced with simulators. We also propose a multi-level authoring approach that provides different levels of content control to different roles in the ITS development. This allows advanced authors and curriculum developers to set up building blocks of tutoring strategies and scenario objects. Instructors can then create scenario exercises by composing the scenario objects and strategies. This system will be integrated with at least two diverse simulations to demonstrate interoperability. Phase I will result in Phase II design and a proof-of-concept prototype that will demonstrate the feasibility of our approach.