In 2010 the internationalfederated conferenceson Distributed Computing Te- niques (DisCoTec) tookplacein Amsterdam,during June 7-9.It washosted and organized by the Centrum voor Wiskunde & Informatica. DisCoTec conferences jointly cover the complete spectrum of distributed computing subjects ranging from theoretical foundations to formal speci?- tion techniques to practical considerations. The 12th International Conference on Coordination Models and Languages (Coordination) focused on the design and implementation of models that allow compositional construction of lar- scale concurrent and distributed systems, including both practical and foun- tionalmodels,run-timesystems,andrelatedveri?cationandanalysistechniques. The 10th IFIP International Conference on Distributed Applications and Int- operable Systems in particular elicited contributions on architectures, models, technologies and platforms for large-scale and complex distributed applications and services that are related to the latest trends in bridging the physical/virtual worlds based on ?exible and versatile service architectures and platforms.The 12th Formal Methods for Open Object-Based Distributed Systems and 30th FormalTechniques for NetworkedandDistributed Systems together emphasized distributed computing models and formal speci?cation, testing and veri?cation methods.