Summary: Proc. Int'l Workshop on Learner Modelling for Reflection, to Support Learner Control,
Metacognition and Improved Communic. between Teachers and Learners, in conj.with
AIED2005, Amsterdam, July, 2005. Copyright 2005.
Dimensions of Transparency in Open
Steven Tanimoto 2
Department of Computer Science and Engineering
University of Washington, Seattle, WA, 98195, USA.
Abstract. The design of learner models that are open to the student's perusal is
challenging, because a variety of competing objectives must be reconciled: com-
prehensiveness versus comprehensibility, and student control versus model validity.
This paper suggests one approach to meeting the challenge that begins by identify-
ing three dimensions of transparency in learner models. These provide a framework
in which to design appropriate views of the data and limited controls, that best sat-
isfy the requirements for the model. Part of one solution is to logically and phys-
ically distribute the records that comprise the model. The current status of learner
modeling in the INFACT system is described.
Keywords. learner model, student model, user model, transcript, computer-
based learning environments, transparency, tutoring system, open learner model,