Knowledge engineering and knowledge dissemination in a mixed-initiative ontological framework

This research postulates that a theory-centric mixed-initiative approach to systems design is critical for the success of technology-enhanced learning environments. It explores a formal ontological mechanism to represent the underlying educational theory. It presents a design for a mixed-initiative system, named MI-EDNA, which recognizes and utilizes explanationaware opportunities for the dissemination of self-regulatory knowledge. MI-EDNA formally captures the theory of Self-Regulated Learning (SRL) in an ontological framework. It uses Description Logic and Production Rules as reasoning mechanisms to enable learners to reflect and regulate on their learning process. Using a model-tracing methodology, this research successfully maps learner interactions onto tactics, strategies, and phases/states that have be.en identified within the realms of SRL. Based on this mapping, MI-EDNA engages learners in a mixed-initiative interaction, formalizes recognition of system initiation opportunities, and provides a scaffolded learning environment to sustain sharing of learning experiences across domains and across learners.