This book constitutes the refereed proceedings of the 11th International Conference on Principles of Distributed Systems, OPODIS 2007, held in Guadeloupe, French West Indies, in December 2007.

The 32 revised full papers presented were carefully reviewed and selected from 106 submissions. The papers address all current issues in theory, specification, design and implementation of distributed and embedded systems. Topics addressed are communication and synchronization protocols, distributed algorithms, multiprocessor algorithms, distributed cooperative computing, embedded systems, fault-tolerance, reliability, availability, grid and cluster computing, location- and context-aware systems, mobile agents and autonomous robot, mobile computing and networks, peer- to-peer systems, overlay networks, complexity and lower bounds, performance analysis of distributed systems, realtime systems, security issues in distributed computing and systems, sensor networks: theory and practice, specification and verification of distributed systems, as well as testing and experimentation with distributed systems.