Visualization models for Virtual Learning Environments

Given the increasing amount of digital resources, it is possible that students experience information overload and disorientation in Virtual Learning Environments. For this reason, we propose three visualization models able to represent the knowledge of the domain in a visual manner, at the same time that facilitate the access to the learning resources. We tested our proposal in terms of usability on a high-education course. Students considered our models intuitive and easy-to-use, and pertinent for summarizing the knowledge of the course and for organizing the learning resources in a navigable form.