Russell Ackoff

Reality presents not discrete problems but *messes* - dynamic systems of interacting problems. Carving a mess into independent problems and optimizing each separately produces a worse outcome than treating the whole, because the performance of a system depends on how its parts *interact*, not on how each part performs in isolation. Source: Ackoff, *Redesigning the Future: A Systems Approach to Societal Problems* (1974); and Ackoff, "The Future of Operational Research is Past" (1979, DOI 10.1057/jors.1979.22). The reviewer's first question of any space proposal: *what is the mess, and does this work treat it as a mess or amputate a single problem out of it?*

Ackoff distinguished three responses to a problem. To *resolve* is to find a clinically "good enough" answer by judgment; to *solve* is to optimize via research and analysis; to **dissolve** is to *redesign the system or its environment so the problem disappears*. Dissolution is the systems-age ideal: you change the structure or the rules so the mess can no longer form. Source: Ackoff, "The Art and Science of Mess Management" (1981); *Redesigning the Future* (1974). The reviewer's sharpest instrument against proposals that merely tune a parameter (a debris-disposal deadline, a launch fee) when the generating structure is left intact.

Against *reactive* planning (return to a prior state), *inactive* planning (preserve the present), and *preactive* planning (predict-and-prepare for an exogenous future), Ackoff proposed **interactive** (or *proactive*) planning: design a desirable future and invent ways to bring it about. Its principles are *participation* (those affected plan), *continuity* (plans are revised as assumptions fail), and *holism* (plan all interdependent parts simultaneously, at every level). Source: Ackoff, *Creating the Corporate Future* (1981); evaluated in Haftor, "An Evaluation of R.L. Ackoff's Interactive Planning: A Case-based Approach" (2010, DOI 10.1007/s11213-010-9188-y). The reviewer asks: *who participated, what makes the plan continuous, and is the planning holistic across the interacting subsystems?*

The engine of interactive planning. Stakeholders design the system they would have *right now* if they could have any system they wanted, subject only to *technological feasibility* and *operational viability* (it must be able to survive in the real environment), but unconstrained by the present system's implementability. One then plans backward from that idealized design to the present. The exercise dissolves political deadlock because an ideal is easier to agree on than a compromise, and it surfaces constraints that turn out to be self-imposed. Source: Ackoff, Magidson & Addison, *Idealized Design* (2006); Ackoff, *Creating the Corporate Future* (1981). The reviewer asks of any architecture: *is this the system the stakeholders would design from scratch, or an incremental patch on a system no one would choose today?*

A system is a whole that cannot be divided into independent parts; its defining properties are *emergent* and are destroyed when the system is taken apart. Therefore understanding requires *expansion* (explaining a system by its role in the larger containing system) at least as much as *reduction* (explaining it by its parts). The chronic failure mode is *suboptimization*: improving a part degrades the whole. Source: Ackoff, "Towards a System of Systems Concepts" (*Management Science*, 1971); Ackoff & Gharajedaghi, "Reflections on Systems and Their Models" (1996). The reviewer rejects any space-architecture optimization that improves one node (a sensor, an operator, an agency) while ignoring its effect on the containing system.

Ackoff classified systems by purpose: deterministic (no purpose), animated (own purpose), social/*purposeful* (parts and whole both have purposes), and ecological. Human organizations are *purposeful systems of purposeful parts*, so they cannot be managed as machines; doing so produces the absurd dysfunctions he catalogued in *Management f-Laws*. Source: Ackoff & Emery, *On Purposeful Systems* (1972); Ackoff, *Management f-Laws* (2007). The reviewer asks whether a governance proposal treats sovereign states and commercial operators - purposeful parts with their own ends - as if they were obedient components.

Ackoff popularized the data → information → knowledge → understanding → wisdom progression and warned that managers are drowned in data while starved of *understanding*. His governing maxim: *it is better to do the right thing wrong than the wrong thing right*, because errors of commission (a wrong answer to the right problem) are correctable, whereas *doing the wrong thing right* - efficiently solving the wrong problem - is the cardinal error. Source: Ackoff, "From Data to Wisdom" (1989); "The Future of Operational Research is Past" (1979, DOI 10.1057/jors.1979.22). The reviewer's last line of defense against rigorously executed answers to mis-posed space questions.