Adaptive systems; e-learning; ITS;Intelligent tutoring systems

The importance of intelligent tutoring systems has rapidly increased in past decades. There has been an exponential growth in the number of end users that can be addressed as well as in technological development of the environments, which makes it more sophisticated and easily implementable. In the introduction, the paper offers a brief overview of intelligent tutoring systems. It then focuses on two types which have been designed for education of students in the tertiary sector. The systems use elements of adaptivity in order to accommodate to as many users as possible. They serve both as a support of presence lessons and, primarily, as the main educational environment for students in the distance form of studies ? e-learning. The systems are described from the point of view of their functionalities and typical features which differentiate them. The authors conclude with an attempt to choose the best features of each system, which would lead to the creation of an even more sophisticated intelligent tutoring system for e-learning.