WETAS: A Web-Based Authoring System for Constraint-Based ITS
AH '02 Proceedings of the Second International Conference on Adaptive Hypermedia and Adaptive Web-Based Systems
An Intelligent Tutoring System for Entity Relationship Modelling
International Journal of Artificial Intelligence in Education
A comparative analysis of cognitive tutoring and constraint-based modeling
UM'03 Proceedings of the 9th international conference on User modeling
Authoring constraint-based tutors in ASPIRE
ITS'06 Proceedings of the 8th international conference on Intelligent Tutoring Systems
A constraint-based collaborative environment for learning UML class diagrams
ITS'06 Proceedings of the 8th international conference on Intelligent Tutoring Systems
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Authoring ITS domain models is a difficult task requiring many skills. Tools such as ASPIRE that model domains using ontology reduce the problem by allowing the author to work at a higher level of abstraction (and thus avoid low-level code writing), but such tools tend to be complex and the task is not intuitive for many people. To overcome this problem we have developed a framework for domain schema: high-level abstractions that describe the semantics of the domain model for a class of domains. Using domain schema reduces the authoring effort to one of describing only those aspects that are unique to this particular domain; the schema provides the rest of the model. We describe the framework we have implemented and give some examples of domain types for which schema have been built.