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Cybernetics and Control. Compiled by Rulzion Rattray UAD School of Management. Definitions. Cybernetics: The science of systems of control and communications in animals and machines. Control:
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Cybernetics and Control Compiled by Rulzion Rattray UAD School of Management
Definitions • Cybernetics: • The science of systems of control and communications in animals and machines. • Control: • Many different definitions many with emotional connotations; dominate, command, exert control over, etc
Engineering Control Actual Temp + Temperature _ Temperature Appliance Switched on Actual - Desired Appliance switched off Desired Temp
In Control Standard Corrective Action Performance In balance perfect control?
Out of Control Standard Performance Corrective action Measurement Time Lag
Ability to Control • Control requires the ability to measure accurately enough so that corrective action will result in performance getting closer and closer to the standard or target. • Inability to measure accurately is likely to result in performance deviating further from target due to reinforcement.
Negative (Damping) Feedback Discover a deviation from standard Carry out the offsetting action Choose an offsetting action
Cybernetics • We learn from our actions, when we miss the target we re-calibrate and try again • the accuracy and potential stability of the system is dependant on: • measurability of the target and of performance • coupled with the ability to deliver the right amount of correction in the right time frame • Britain's boom and bust economy a result of failure to understand the basic principles of control?
Error Controlled Regulation Disturbance Organisation Outcome Regulation
Error Control • The monitoring reviewing and corrective action system of an organisation. Using past performance to correct future action. • Can be improved if past performance is used to forecast, depending on the accuracy of the forecast
Anticipatory Regulation Disturbance Organisation Outcome Regulation
Conclusions • Organisations have not always taken the basic principles of control into account. • In the real world there are often too many variables to measure, controlling one thing might disturb another resulting in unintended consequences. • Organisational control a complex problem due to the complexity of the environment both internal and external.
References • Stacey, R, 1996, “Strategic Management & Organisational Dynamics”, Pitman, London. • Bartol & Martin, 199-, Management etc.