Requirements Decomposition using a Graphical method

Systems Engineering is evolving from a largely text-based endeavour towards a more graphical and model-based approach. However, there is little agreement on the underlying concepts and processes used in systems engineering and their representation in models. This paper proposes a requirements modelling approach based on a reduced set of underlying concepts, which can readily be given a graphical representation. We then show how a graph isomorphism could be used to transform from the requirements space into the design space. At the same time we review the ability of current models to represent the key concepts and transformations.