Large-scale deployment of three intelligent web-based database tutors

We present our experiences with DatabasePlace, a Web portal aimed at university-level students enrolled in database courses. The portal was established by Addison-Wesley in January 2003. Besides presenting information about the textbooks, the portal also provides additional domain information, online quizzes and three intelligent tutoring systems developed by the Intelligent Computer Tutoring Group (ICTG). We briefly present the three systems, and then discuss our experiences. We also compare the DatabasePlace students to our local students using the three ITSs