Software design: in search of method

By making better use of the fact that the primary purpose of software is to satisfy goals, it is possible to synthesise a more constructive method for designing the high-level architecture of software systems. The method yields architectures that capture and express stable data dependencies that are highly likely to be resilient to the evolution of any given system. This goal-directed design method consequently provides strong up-front support for component-based development, objected-oriented development, the creation of reusable software components and the exploitation of reuse