In today’s post, I am looking at the concept of POSIWID (“Purpose Of a System Is What It Does”) Please note that VSM stands for “Viable System Model” and not “Value Stream Mapping”.
The idea of POSIWID was put forth by the father of Management Cybernetics, Stafford Beer. As Beer puts it: A good observer will impute the purpose of a system from its actions… There is, after all, no point in claiming that the purpose of a system is to do what it consistently fails to do.
An organization is a sociotechnical and complex system. This means that it cannot be controlled by simple edicts that are put top down from the management. We should not go by what the “designer” of the system says it does, we should impute the purpose from what the system actually does.
A good explanation comes from Dan Lockton: 
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