From SDK to xPST: A New Way to Overlay a Tutor on Existing Software
Stephen B. Blessing, Stephen B. Gilbert, Liz A. Blankenship, Bhavesh Sanghvi · 2009
Our past work has investigated the use of the Cognitive Model Software Development Kit (SDK) for creating the cognitive models that underlie model-tracing Cognitive Tutors. Though successful at increasing the number of people who could author such a cognitive model, for certain kinds of situations the Cognitive Model SDK proved cumbersome. The present work discusses a new authoring system, xPST, that allows an example-based tutor to be built on top of existing software.1xPST-based tutors have been built for two real-world systems that had existing interfaces. Starting Point: The Cognitive Model SDK We have met with success at developing a SDK for cognitive models (Blessing & Gilbert, 2008). The Cognitive Model SDK allowed authors to develop the