Invited Talks.- Logic for Automated Mechanism Design and Analysis.- Coordination in Multi-Agent Systems: Towards a Technology of Agreement.- Research Papers.- Optimistic-Pessimistic Q-Learning Algorithm for Multi-Agent Systems.- How to Program Organizations and Roles in the JADE Framework.- Agent Models for Concurrent Software Systems.- Filtering Algorithm for Agent-Based Incident Communication Support in Mobile Human Surveillance.- Joint Equilibrium Policy Search for Multi-Agent Scheduling Problems.- Making Allocations Collectively: Iterative Group Decision Making under Uncertainty.- Compiling GOAL Agent Programs into Jazzyk Behavioural State Machines.- Knowledge and Strategic Ability for Model Checking: A Refined Approach.- Agent Learning Instead of Behavior Implementation for Simulations - A Case Study Using Classifier Systems.- Providing Integrated Development Environments for Multi-Agent Systems.- Implementing Organisations in JADE.- A Fair Mechanism for Recurrent Multi-unit Auctions.- Multi-Agent Reinforcement Learning for Intrusion Detection: A Case Study and Evaluation.- Teaching Distributed Artificial Intelligence with RoboRally.- Refactoring in Multi Agent System Development.- Autonomous Scheduling with Unbounded and Bounded Agents.

For the sixth time, the German special interest group on Distributed Arti?cial Intelligence in cooperation with the Steering Committee of MATES organized the German Conference on Multiagent System Technologies - MATES 2008. This conference, which took place during September 23-26, 2008 in Kaisersla- ern, followed a series of successful predecessor conferences in Erfurt (2003, 2004, and 2006), Koblenz (2005), and Leipzig (2007). MATES 2008 was co-located with the 31st German Conference on Arti?cial Intelligence (KI 2008) and was hosted by the University of Kaiserslautern and the German Research Center for Arti?cial Intelligence (DFKI). As in recent years, MATES 2008 provided a distinguished, lively, and - terdisciplinary forum for researchers, users, and developers of agent technology to present and discuss the latest advances of research and development in the area of autonomous agents and multiagent systems. Accordingly, the topics of MATES 2008 covered the whole range: from the theory to applications of agent and multiagent technology. In all, 35 papers were submitted from authors from 11 countries. The accepted 16 full papers included in this proceedings volume and presented as talks at the conference were chosen based on a thorough and highly selective review process. Each paper was reviewed and discussed by at least three Program Committee members and revised according to their c- ments. We believe that the papers of this volume are a representative snapshot of current research and contribute to both theoretical and applied aspects of autonomous agents and multiagent systems.