Widely-Known Systems Principles
Viability principle: Viability is a function of the proper balance between autonomy of subsystems and their integration within the whole system, or of the balance between stability and adaptation.
First cybernetic control principle: Successful implicit control must be a continuous and automatic comparison of behavioural characteristics against a standard. It must be followed by continuous and automatic feedback of corrective action.
Second cybernetic control principle: In implicit control, control is synonymous with communication. ”Control …. is nothing but the sending of messages which effectively change the behaviour of recipient…. ” @
The feedback principle: The result of behaviour is always scanned and its success or failure modifies future behaviour.
Eighty-twenty principle: In any large, complex system, eighty per cent of the output will be produced by only twenty per cent of the system.
@ N. Wiener (1950) The human use of Human beings, Houghton Mifflin Company