It is with great pleasure that we present to you this tutorial volume entitled Validation of Stochastic Systems.ItisoneoftheresultsoftheDutch-German- lateral cooperation project Validation of Stochastic Systems (VOSS), ?nanced by NWO and DFG (the Dutch and German science foundations, respectively). In the early days of 2002, the idea emerged to organize a seminar at Schloss Dagstuhl, not the usual Dagstuhl seminar with primarily invited participants, but a seminar aimed at young(er) people, and for which the organizers assign themes to be worked upon and presented on. Following an open call...

This volume contains the proceedings of the 17th International Conference on Concurrency Theory (CONCUR) held in Bonn, Germany, August 27 30, 2006. ThepurposeoftheCONCURconferenceseriesistobringtogetherresearchers, developers and students in order to advance the theory of concurrency and promote its applications. Interest in this topic is continuously growing, as a c- sequence of the importance and ubiquity of concurrent systems and their app- cations and the scienti?c relevance of their foundations. The scope of CONCUR covers all areas of semantics, logics, and veri?cation techniques for...