“Industrial production, the flow of resources in the economy, the exertion of military effort in a war, the management of finances --all require the coordination of interrelated activities. What these complex undertakings share in common is the task of constructing a statement of actions to be performed, their timing and quantity (called a program or schedule), that, if implemented, would move the system from a given initial status as much as possible towards some defined goal”

— George Dantzig

George B. Dantzig, Mukund N. Thapa (1997) Linear Programming: 1: Introduction. p.xxi

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George Dantzig 9

American mathematician 1914–2005

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“Industrial production, the flow of resources in the economy, the exertion of military effort in a war theater-all are complexes of numerous interrelated activities. Differences may exist in the goals to be achieved, the particular processes involved, and the magnitude of effort. Nevertheless, it is possible to abstract the underlying essential similarities in the management of these seemingly disparate systems.”

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Source: Linear programming and extensions (1963), p. 1

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“In enterprise modelling, we want to define the actions performed within an enterprise, and define constraints for plans and schedules which are constructed to satisfy the goals of the enterprise. This leads to the following set of informal competency questions:”

Mark S. Fox (1952) Canadian computer scientist and Professor of Industrial Engineering

Temporal projection - Given a set of actions that occur at different points in the future, what are the properties of resources and activities at arbitrary points in time?
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Source: Methodology for the Design and Evaluation of Ontologies (1995), p. 3-4