Viable System Model
“The object is to construct a model of the organization of any viable system. The firm is something organic, which intends to survive — and that is why I call it a viable system” (BOTF 1981: 75). Not analogy: “Models are more than analogies” (ibid.). Nervous-system derivation in brain-of-the-firm; variety restatement in the-heart-of-enterprise; method in diagnosing-the-system-for-organizations.
Five subsystems (BOTF 1981: 75–76): system-one, system-two, system-three for internal stability; system-four for “arousal and adaptation”; system-five as “conscious direction” (board / cortex). Nested by recursion: “If a viable system contains a viable system, then the organizational structure must be recursive” (BOTF 1981: 228); HOE, “from the opposite angle” (HOE 1979: 118). Embedment is “rigorously determined by the law-of-cohesion” (BD 1994: 229). Chile left a blank Opsroom wall for an algedonic-signal meter (BOTF 1981: 284).
Role in the corpus
Hub of overview. Anatomy: Part II, chs. 4–15 (pure-vsm-part-ii-the-viable-system-model). Application: Part III, especially cybersyn (ch. 16). Non-hierarchy in Part IV (team-syntegrity, BD 1994: 7, 148). Works: BOTF, HOE, DTS; BD for syntegrity on the Three–Four homeostat.
Open points
- System Two’s function (anti-oscillation) is stable; its placing relative to the metasystem shifts BOTF→HOE (pure-vsm-appendix).
- Recursive System Theorem: two wordings (BOTF 1981: 228 vs HOE 1979: 118).
- Draft 0.8 is not project canon.
Related
stafford-beer · system-one · system-two · system-three · system-four · system-five · recursion · law-of-cohesion · algedonic-signal · overview