Agent-oriented Modeling for Collaborative Learning Environments: A Peer-to-Peer Helpdesk Case Study Renata S. S. Guizzardi 1 , Gerd Wagner 2 and Lora Aroyo 1 1 Computer Science Department – University of Twente (UT) P.O. Box 217 NL – 7500 AE – Enschede – The Netherlands {souza, aroyo}@cs.utwente.nl 2 Faculty of Technology Management, I&T – Eindhoven University of Technology (TU-E) P.O. Box 513 – 5600 MB – Eindhoven – The Netherlands G.Wagner@tm.tue.nl Abstract. In this paper, we present the analysis and modelling of Help&Learn, an agent-based peer-to-peer helpdesk system to support extra-class interactions among students and teachers. Help&Learn expands the student’s possibility of solving problems, getting involved in a cooperative learning experience that transcends the limits of classrooms. To model Help&Learn, we have used Agent-Object-Relationship Modeling Language (AORML), an UML extension for agent-oriented information systems modeling. The aim of this research is two-fold. On one hand, we aim at modeling the variety of roles and the complexity of their interactions and activities within the Help&Learn system. On the other hand, we aim at showing the expressive power and the modeling strengths of AORML. Keywords: collaborative learning environments, peer-to-peer technology, agent-oriented modeling XIII Simpósio Brasileiro de Informática na Educação – SBIE – UNISINOS 2002