Vidya: A situated call environment

This research was supported by the Knowledge Based Computer Systems Project of the Department of Electronics, Government of India, assisted by the United Nations Development Programme. CALL environments have been developed based on different paradigms, interaction methods and courseware representations. This paper presents a situated learning based CALL system named VIDYA. In VIDYA, a number of CALL principles have been used. The principles discussed include use of mastery learning in the situated learning context, student modeling of language constructs, dynamic courseware presentation, and a generic courseware evaluation technique. The principles used in VIDYA are elaborated with examples along with the implementation aspects. The first section presents an introduction to VIDYA and the second section provides an overview of the system. The third section identifies the principles and describes them individually. The fourth section-explains the features of VIDYA that encompass the CALL principles. The fifth section describes VIDYA's overall architecture. The paper concludes with a short summary of the present status of VIDYA and a few possible extensions proposed for the future releases.