Intelligent tutoring systems for asynchronous distance education

Asynchronous distance education delivery systems do not require real-time student-human teacher interaction thus enabling students to use tutoring resources anytime and anywhere. Among the various possibilities for implementing asynchronous distance education delivery computer supported ones are the most popular. Categories thereof are intelligent tutoring systems that are used for supporting and improving the process of learning and teaching in an arbitrary domain knowledge. In such education models the role of human teacher is replaced with a computer tutor basically consisting of a domain knowledge base as well as of both a student module with an appropriate student model and a teacher strategy guiding the learning and teaching process. The paper describes an authoring shell-Distributed Tutor-Expert System (DTEx-Sys)-developed for asynchronous distance education purposes, as a secondary knowledge source for teachers and their students in secondary and primary schools.