This comprehensive image represents in a single view the behaviors of a specific student in an on-line course. It takes advantage of single-axis composition method for presenting large number of variables in a 2D metric space. With a common x-axis mapping the dates of the course, a number of variables are represented. The information represented here are namely the student's access to the content pages (ordered by topics of the course), the global access to the course (content pages, quiz, discussion etc.), a progress with the schedule of the course, messages (posted, read, follow-ups), and the submission of quizzes and assignments.