Yassine Lakhnech – författare

This is a systematic and comprehensive introduction both to compositional proof methods for the state-based verification of concurrent programs, such as the assumption-commitment and rely-guarantee paradigms, and to noncompositional methods, whose presentation culminates in an exposition of the communication-closed-layers (CCL) paradigm for verifying network protocols. Compositional concurrency verification methods reduce the verification of a concurrent program to the independent verification of its parts. If those parts are tightly coupled, one additionally needs verification methods based on the causal order between events. These are presented using CCL. The semantic approach followed here allows a systematic presentation of all these concepts in a unified framework which highlights essential concepts. This 2001 book is self-contained, guiding the reader from advanced undergraduate level. Every method is illustrated by examples, and a picture gallery of some of the subject's key figures complements the text.

This is a systematic and comprehensive introduction both to compositional proof methods for the state-based verification of concurrent programs, such as the assumption-commitment and rely-guarantee paradigms, and to noncompositional methods, whose presentation culminates in an exposition of the communication-closed-layers (CCL) paradigm for verifying network protocols. Compositional concurrency verification methods reduce the verification of a concurrent program to the independent verification of its parts. If those parts are tightly coupled, one additionally needs verification methods based on the causal order between events. These are presented using CCL. The semantic approach followed here allows a systematic presentation of all these concepts in a unified framework which highlights essential concepts. This 2001 book is self-contained, guiding the reader from advanced undergraduate level. Every method is illustrated by examples, and a picture gallery of some of the subject's key figures complements the text.

The correct development of large software systems demands a thorough structuring of the design process. In a first phase the requirements engineering is relevant for capturing the relevant functionality and its adequate and precise mathematical formalization. Prototyping can be used as a means for checking the functional behaviour at this early stage of development. The specification resulting from the first phase is then the basis for the second phase which comprises the derivation of an efficient implementation. This phase requires the use of formal methods and tools to verify/validate the implementation. Of course, a prerequisite for applying this approach to large systems is to have suitable tool support. This book presents tools that aim at the formal and computer-aided development of software. Furthermore, it discusses the theories and methods underlying the tools, applications, and limits. Finally, it describes many case studies. The presented tools and methods vary from academic to industrial, from fully automatic to interactive, and from animation and prototyping to formula manipulation, theorem proving, i. e., formal verification.Thus, the reader gets an overview of the wide-ranging applicability of formal methods and the computer-aided software development.

This volume contains the proceedings of the joint conference on Formal M- elling and Analysis of Timed Systems (FORMATS) and Formal Techniques in Real-Time and Fault Tolerant Systems (FTRTFT), held in Grenoble,France,on September 22-24,2004. The conference united two previously independently - ganized conferences FORMATS and FTRTFT. FORMATS 2003 was organized asasatelliteworkshopofCONCUR2003andwasrelatedtothreeindependently started workshop series: MTCS (held as a satellite event of CONCUR 2000 and CONCUR 2002), RT-TOOLS (held as a satellite event of CONCUR 2001 and FLoC 2002) and TPTS (held at ETAPS 2002). FTRTFT is a symposium that was held seven times before: in Warwick 1988, Nijmegen 1992, Lu beck 1994, Uppsala 1996, Lyngby 1998, Pune 2000 and Oldenburg 2002. The proceedings of these symposia were published as volumes 331, 571, 863, 1135, 1486, 1926, and 2469 in the LNCS series by Springer. Thisjointconferenceis dedicatedtotheadvancementofthetheoryandpr- ticeofthe modelling,designandanalysisofreal-timeandfault-tolerantsystems. Indeed,computersystemsarebecomingincreasinglywidespreadinreal-timeand safety-critical applications such as embedded systems.Such systems are char- terized by the crucial need to manage their complexity in order to produce reliable designs and implementations. The importance of timing aspects, p- formance and fault-tolerance is continuously growing. Formal techniques o?er a foundation for systematic design of complex systems. They have bene?cial - plications throughout the engineering process, from the capture of requirements through speci?cation, design, coding and compilation, down to the hardware that embeds the system into its environment.