system, which includes information systems, workflow management systems, systems for e-commerce, control of production systems, and embedded software, the more manifest aspects of the design previously considered alone-such as complex information processing, non-trivial behavior, and communication between Different components of the traditional aspects are treated separately by the methodology of software design classic. However, as this book illustrates, software designers better served by the ability to intelligently pick and choose among the various techniques in accordance with specific demands and nature of the system under development. Reactive Methods System Design software helps designers meet increasingly complex challenges of today by bringing together technical specifications and guidelines that proved useful in the design of various software systems, which allows designers to evaluate and adjust the different techniques for different projects.