Modeling TeleTruck: A Case Study -- Modeling TeleTruck: A Case Study -- I Organisations and Norm-Governed Systems -- Specifying Open Agent Systems: A Survey -- From Multi-Agent to Multi-Organization Systems: Utilizing Middleware Approaches -- II Privacy and Security -- RBAC-MAS and SODA: Experimenting RBAC in AOSE -- Sensitive Data Transaction in Hippocratic Multi-Agent Systems -- III Agent-Oriented Software Engineering -- ADELFE Design, AMAS-ML in Action -- Exception Handling in Goal-Oriented Multi-Agent Systems -- A Reverse Engineering Form for Multi Agent Systems -- Coping with Exceptions in Agent-Based Workflow Enactments -- IV Emergence and Self-organisation -- Contribution to the Control of a MAS's Global Behaviour: Reinforcement Learning Tools -- Peer Pressure as a Driver of Adaptation in Agent Societies -- A Multi-Agent Resource Negotiation for the Utilitarian Welfare -- V Simulation -- Interaction Biases in Multi-Agent Simulations: An Experimental Study -- Engineering Self-modeling Systems: Application to Biology -- From Individuals to Social and Vice-versa.

This book constitutes the thoroughly refereed post-conference proceedings of the 9th International Workshop on Engineering Societies in the Agents World, ESAW 2008, held in Saint-Etienne, France, in September 2008. The 13 revised full papers presented together with 1 invited long paper were carefully selected from 29 submissions during two rounds of reviewing and revision. The papers are organized in topical sections on organisations and norm-governed systems, privacy and security, agent-oriented software engineering, emergence and self-organisation, as well as simulation.