SSM vs Hard Systems
A hard systems model deals with a functionalist view
of the world where people may be viewed as an extension of a machine
, organism, etc. However, people often dont seem to fit this kind of model very well since there performance depends on a number of factors including the interactions that the (consultant) has with them, you thus have a soft system. SSM is a methodology for making progress in a problem where a functionalist methodology will not do.