Quantitative Assessments of Distributed Systems

Distributed systems employed in critical infrastructures mustfulfill dependability, timeliness, and performance specifications. Since these systems most often operate in an unpredictableenvironment, their design and maintenance require quantitativeevaluation of deterministic and probabilistic timed models. Thisneed gave birth to an abundant literature devoted to formalmodeling languages combined with analytical and simulative solutiontechniques The aim of the book is to provide an overview of techniques andmethodologies dealing with such specific issues in the context ofdistributed systems and covering aspects such as performanceevaluation, reliability/availability, energy efficiency, scalability, and sustainability. Specifically, techniques forchecking and verifying if and how a distributed system satisfiesthe requirements, as well as how to properly evaluatenon-functional aspects, or how to optimize the overall behavior ofthe system, are all discussed in the book. The scope has beenselected to provide a thorough coverage on issues, models. andtechniques relating to validation, evaluation and optimization ofdistributed systems. The key objective of this book is tohelp to bridge the gaps between modeling theory and the practice indistributed systems through specific examples.