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Software-intensive systems are those in which the computer executing the software is only one of the parts of the system. Problem frames offer a conceptual structure for the development of such systems: that is, a coherent way of analysing the problem to be solved, identifying the concerns and difficulties that it poses, and working towards a solution. This tutorial present the basic ideas of problem...
The established branches of engineering are characterised by a focus on the physical world and by intense specializations. These practices are already found in some areas of software engineering, but a wider and fuller adoption could be beneficial. In particular, specialisation could help in dealing with a major challenge of software engineering - with the non-formal and heterogeneous nature of the...
Developing a software-intensive system is engineering in the traditional sense: creating an artifact which transforms the physical world to meet some recognised need. The artifact is the hardware-software machine; the physical world is the system's environment; and the recognised need is the requirement. For a successful development the entailment must hold: "machine, environment, requirement"...
Program verification assumes a formal program specification. In software-intensive systems, such specifications must depend on formalization of the natural, nonformal problem world. This formalization is inevitably imperfect, and poses major difficulties of structure and reasoning. Appropriate verification tools can help address these difficulties and improve system reliability
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