The 10th international workshop Engineering Societies in the Agents' World (ESAW 2009) was
held in Utrecht The Netherlands during November 18-20 2009. In the tradition of its
predecessors ESAW 2009 was committed to the idea of multi-agent systems (MAS) as highly
interconnected societies of agents paying particular attention to the social aspects
methodologies and software infrastructures that tackle the emergent complexities of MAS. The
idea for the ESAW workshop series was born 10 years ago in 1999 among the members of the
working group on Communication Coordination and Collaboration of AgentLink the 1st European
Network of Excellence on Agent-Based Computing out of a critical discussion about the general
mi- set of the agents community. Central to this discussion is the need for proper
consideration of systematic aspects of MAS acknowledging the importance of a
multi-disciplinary approach that takes into account the social environmental and
technological perspectives. These issues that are as actual today as they were in 1999 which
is con?rmed by the steady interest in the ESAW workshop series that previous editions took
place in: - Berlin Germany 2000 (LNAI 1972) - Prague Czech Republic 2001 (LNAI 2203) -
Madrid Spain 2002 (LNAI 2577) - London UK 2003 (LNAI 3071) - Toulouse France 2004 (LNAI
3451) - Kusadasi Turkey 2005 (LNAI 3963) - Dublin Ireland 2006 (LNAI 4457) - Athens Greece
2007 (LNAI 4995) - Saint-Etienne France 2008 (LNAI 5485)
This10thworkshopwasdevotedtothediscussionoftechnologies methodologies and models for the
engineering of complex applications based on MAS and
broughttogetherresearchersandcontributionsfrombothwithinandoutsidetheagents'?eld-fromsoftwareengineering
distributedsystems socialsciences and