engleski

Experience with Usability Evaluation of e-Learning Systems

Regardless of so much publicity and activity, the progress in the field of e-learning has been slow, with related problems mainly associated with poor design of e-learning systems. Moreover, because of a depreciated importance of usability, the usability studies are not very frequent. This paper reports the experience with usability assessment of the intelligent learning and teaching systems which are based on TEx-Sys model and intended to enhance the process of acquiring knowledge in daily classroom settings. The applied scenario-based usability evaluation, as a combination of behaviour and opinion based measurements, enabled us to quantify the usability in terms of users' (teachers' and students') performance and satisfaction. According to the achieved results, the main directions for interface redesign are offered. Our experience indicates that useful usability assessments with a significant identification of interface limitations can be performed quite easily and quickly. On the other hand it raised a series of questions which, in order to be clarified, require further comprehensive research, the more so if the employment of universal design within e-learning context is considered.

e-learning system; intelligent tutoring system; usability; scenario-based usability evaluation; guideline evaluation

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