- Author
- Not stated (Wikipedia contributors)
- Published
- Last edited 13 August 2026
- Kind
- Encyclopedia article
- Original
- en.wikipedia.org/wiki/Viable_system_model
- Subject
- Society and technology
What it is
A community-written entry on the viable system model. It describes the five systems, the rules and uses.
What it says
- The article says Stafford Beer developed the model in Brain of the Firm (1972).
- Viable systems are recursive: each viable system contains, and is contained in, another.
- Systems 1 to 3 run today, System 4 looks outward, System 5 sets policy.
- Algedonic alerts are alarms and rewards that escalate when performance fails or exceeds capability.
- Beer defines productivity, latency and performance as ratios of actuality, capability and potentiality.
- The article says the model was applied widely in Latin America, notably Uruguay and Colombia.
What evidence it gives
The article cites Beer's books and papers in its references. It gives one worked numeric example of the performance ratios. It reports no empirical tests of the model.
Interests and limits
It is a tertiary summary that anyone can edit. The article says the model is claimed to apply to any viable organization. It does not assess how well that claim holds.