Engineering Societies in the Agents World : 4th International Workshop, ESAW 2003, London, UK, October 29-31, 2003. Revised Selected and Invited Papers (Lecture Notes in Artificial Intelligence Vol.3071) (2004. XIII, 409 p.)

"The fourth internationalworkshop,\"EngineeringSocietiesin the Agents World\" (ESAW 2003) was a three-dayevent that took place at the end of October 2003. After previous events in Germany, the Czech Republic, and Spain, the workshop crossed the Channel, to be held at the premises of Imperial College, London. The steady increase in the variety of backgrounds of contributing sci- tists, fascinating new perspectives on the topics, and number of participants, bespeaks the success of the ESAW workshop series. Its idea was born in 1999 among members of the working group on \"Communication