Concurrent Development of Model and Implementation

Details Concurrent Development of Model and Implementation Concurrent Development of Model and Implementation

2011-11-11

arxiv.org/abs/1111.2826v1

16th International Conference on Software and Systems Engineering and their Applications (ICSSEA 2003)

Computer Science

Software Engineering

Scientific paper

This paper considers how a formal mathematically-based model can be used in support of evolutionary software development, and in particular how such a model can be kept consistent with the implementation as it changes to meet new requirements. A number of techniques are listed can make use of such a model to enhance the development process, and also ways to keep model and implementation consistent. The effectiveness of these techniques is investigated through two case studies concerning the development of small e-business applications, a travel agent and a mortgage broker. Some successes are reported, notably in the use of rapid throwaway modelling to investigate design alternatives, and also in the use of close team working and modelbased trace-checking to maintain synchronisation between model and implementation throughout the development. The main areas of weakness were seen to derive from deficiencies in tool support. Recommendations are therefore made for future improvements to tools supporting formal models which would, in principle, make this co-evolutionary approach attractive to industrial software developers. It is claimed that in fact tools already exist that provide the desired facilities, but these are not necessarily production-quality, and do not all support the same notations, and hence cannot be used together.

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