Js. Sagoo et Jt. Boardman, TOWARDS THE FORMALIZATION OF SOFT SYSTEMS MODELS USING PETRI-NET THEORY, IEE proceedings. Control theory and applications, 145(5), 1998, pp. 463-471
The analytical capability of conceptual models that are used in a soft
systems methodology to capture the processes within a business organi
sation is examined and extended. Specifically, the models known as sys
temigrams, which form part of the Boardman soft systems methodology, a
re considered. The informal nature of systemigrams allows a nonspecial
ist to easily create models of processes, but it does not permit analy
sis of the resulting model. Hence, problems can occur in verifying the
correctness of these models. This problem is addressed by presenting
a translation algorithm that converts systemigram descriptions into Pe
tri net models. This translation allows the behaviour, represented by
the systemigram, to be analysed via Petri net theory, and it has the p
otential of performing what if analysis. Application of this algorithm
is shown via a case study that translates and analyses a systemigram
of a realistic industrial process that forms the Order Intake phase of
a product's life cycle.