Community Research and Development Information Service - CORDIS

The formal description technique LOTOS

The aim of the LOTOSPHERE project was to foster the exploitation by industry of mathematically sound formal design techniques. This was achieved by project engineering and by using a viable, fully tool supported, formal system design and development methodology.

The methodology was centred on the emerging international standard formal description technique (FDT) LOTOS (IS8807). The LOTOSPHERE project intended to convert LOTOS into an industrial tool applicable to system design and system implementation. This included the development of design structuring techniques, integrity preserving transformations, a test theory and methods, language enhancements, and an integrated toolset. These methods and tools will be applied to industrial pilot specifications and implementations.

Until now FDTs have been primarily developed and used with the objective of reporting the architectural design and specification phase. The aim has been the development of correct, implementation independent specifications that faithfully reflect an architecture. LOTOS is a particularly flexible and expressive FDT which can support a variety of specification styles (object oriented, constraint oriented, etc). This makes LOTOS a natural and appropriate foundation on which to base high quality software engineering of concurrent and distributed systems. Such a LOTOS environment will support the entire implementation path, thus permitting the rapid development of correct and high quality implementations from architectural specifications.

Reported by

Telematics Institute
7500 AN Enschede
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