AHIS equation describes a new model for instructional system design and develops a system based on Merrill's Component Display Theory incorporating appropriate selection of Media, Ergonomics and Navigation Structures to produce learner engaging and effective learning outcome. A significant component of the proposed model is the integration of…

To counter user disorientation and cognitive overload, hypertext environments often incorporate navigational aids in the form of graphical overviews of the hypertext structure. The aim of the present experimental investigation of learning in hypertext environments was to examine the impact of such graphical overviews on learning achievement in…

This paper describes the architecture and discusses implementation issues of a scalable Internet-based teaching and learning system (SKILL) being developed at the University of Essen (Germany). The primary objective of SKILL is to cope with the different knowledge levels and learning preferences of the students, providing them with a collaborative…