Software validation is one of the most cost-intensive tasks in modern software production processes. The objective of FATES/RV 2006 was to bring sci- tists from both academia and industry together to discuss formal approaches to test and analyze programs and monitor and guide their executions. Formal approaches to test may cover techniques from areas like theorem proving, model checking, constraint resolution, static program analysis, abstract interpretation, Markov chains, and various others. Formal approaches to runtime veri?cation use formal techniques to improve traditional ad-hoc monitoring techniques used in testing, debugging, performance monitoring, fault protection, etc. The FATES/RV 2006 workshop selected 14 high-quality papers out of 31 submissions. Each paper underwent at least three anonymous reviews by either PCmembersorexternalreviewersselectedbythem.Inadditiontothe14regular papers, the proceedings contain two papers corresponding to the invited talks by Wolfgang Grieskamp (Microsoft Research, USA) and Oege de Moor (Oxford University, UK). This was the ?rst time that the two workshops, FATES and RV, were held together. The success of this joint edition shows that the integration of these two communities can be pro?table for both of them. Previous editions of these two events were held in the following places: FATES 2001 was held in A- borg (Denmark) and FATES 2002 in Brno (Czech Republic). In both cases, the workshop was a?liated with CONCUR. FATES 2003 and FATES 2004 were held in Montreal(Canada)and Vienna (Austria), respectively,in a?liationwith ASE.FATES 2005wasco-locatedwith CAV in Edinburgh(UK). Since 2003,the FATES workshop proceedings have been published by Springer (LNCS series).
