This book constitutes the refereed proceedings of the 9th IFIP WG 6.1 International Conference
on Distributed Applications and Interoperable Systems DAIS 2009 held in Lisbon Portugal in
June 2009. The DAIS conference was held as part of the federated event on Distributed Computing
Techniques (DisCoTec) together with the 11th International Conference on Coordination Models
and Languages (Coordination 2009) and the IFIP WG 6.1 International Conference on Formal
Techniques for Distributed Systems (FMOODS FORTE 2009). The 12 revised full papers presented
were carefully reviewed and selected from 32 submissions. The papers address service
orientation quality of service and service contract business processes Web services service
components algorithms and protocols supporting dependability fault tolerance data
replication group communication adaptive and collaborative systems context awareness
model-driven development middleware for ubiquitous computing and sensor networks ad hoc
network protocols peer-to-peer systems and overlays. They are organized in topical sections
peer-to-peer networks adhoc networks dependability and infrastructure and services.
