Soft Systems Methodology — A Process View

Abstract

Methods from the relatively recent research area of software process modelling are applicable to more than just software processes and methodologies. In this study, software process modelling is applled to the ChecklandIWiIson soft systems methodology (SSM). The primary objective is a better understanding of SSM. Advantages and disadvantages of doing so are identified, including the possible disadvantage of over constraining SSM and impairing its spontaneity. A small set of requirements is given for the process modelling and enaction of an instance of SSM. These include low intrusiveness and high practitioner freedom within a basic set of specitled activities and products. Goals of modelling and enaction include the observation and better understanding of SSM in action, the better definition of it in situations where this is appropriate, the identification of areas of difficulty for the practitioner(s) involved, the measurement of effort on activities, including iteration and rework, and the possible provision of guidance to inexperienced practitioners. A prototype model is described based on these requirements. Some preliminary findings based on the enaction of a prototype process model in an SSM case study are described.