Organizational Cybernetics & the Viable System Model — Requisite Variety, Viable Systems, and the Convergent Evolution of Governance Structure

This research investigates whether management cybernetics provides a formal, independently derived theoretical foundation for organizational governance structure. Ashby's Law of Requisite Variety (1956), derived from Shannon's Theorem 10, establishes an information-theoretic constraint: governance systems must match the regulatory variety of what they govern. Beer's Viable System Model (1972–1985) translates this constraint into five necessary subsystems for organizational viability, derived from neurophysiology and cybernetic axioms — not management best practices. Three confirmed gaps emerge from systematic literature search: no published work connects Beer's System 4 to modern AI world model research, maps COSO's five components to VSM's five systems, or formalizes the transition from cybernetic diagnosis to operational governance infrastructure. Most significantly, four independent traditions — cybernetics, compliance, ML/AI, and governance practice — converge on structurally compatible conclusions about organizational viability, constituting convergent evolution rather than derivation.