Web Server Based Architectures for Language Learning: P.R.I.M.A. 1 Agents generating CALL Dialogues Stefano A. Cerri and Daniele Maraschi LIRMM: Laboratoire d'Informatique, Robotique et Microelectronique de Montpellier, France. Université de Montpellier II - CNRS 161 Rue Ada 34392 Montpellier Cedex 5, France http://www.lirmm.fr / cerri@lirmm.fr , maraschi@lirmm.fr Stefan Trausan-Matu "Politehnica" University of Bucharest and Romanian Academy Institute for Artificial Intelligence, Bucharest, Romania. 13, Calea 13 Septembrie, 74311 Bucharest, Romania http://www.racai.ro/~trausan trausan@cs.pub.ro Svetlana Dikareva Department for Russian Language, Computer Center, Simferopol, Ukraine. Tavrida V.I. Vernadsky National University Yaltinskaya 4 Simferopol Ukraine 95007 http://www.tnu.crimea.ua/structure/phil_fac/projects/ dikareva@crimea.com Abstract In the EU project LARFLAST 2 (LeARning Foreign LAnguage Scientific Terminology) partners adopting agent technologies (Simferopol, Bucharest, Montpellier) have proposed a Web-based architecture able to integrate dynamically information coming from spidering on the Web and other information and knowledge locally available (eg: CBT Courses, DBMS etc.) concerning potential learning material, into XML structured active (XSL and Java) documents. These were supposed to allow learners (and teachers, experts etc.) to engage in interactions fully generated on the fly by a Web server. The ambition of this architecture is manifold: it allows to capitalize from dynamically available Web information, not just from locally generated learning resources; allow as much as possible agents to engage both in dialogues with learners and with teachers-developers-experts that wish to enrich, modify, customize etc. on the fly the XML documents generating dialogues with learners; transform the current HTML, page oriented, Web technologies into fully conversation oriented, server-based dynamic technologies in order to multiply the potential use worldwide of produced CALL material. In this paper we will present how Web technologies have been developed for 1 Program-centered Reusable Interactive Multimedia Architecture 1. 2 http://www-it.fmi.uni-sofia.bg/larflast