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Glosario de Dinámica de Sistemas

Este es el Glosario de Dinámica del Sistema compilado por David N. Ford y aceptado por Yaman Barlas. Fue publicado el 7 de noviembre de 2019 aquí: https://doi.org/10.1002/sdr.1641.

 

Introducción

Como un diccionario de enfoque limitado, este glosario define términos de uso común que son centrales para la Dinámica de Sistemas tradicional y algunos términos más generales que tienen significados especiales o importancia particular dentro de la dinámica del sistema. No se incluyen los términos generales que no tienen significados especiales en la Dinámica de Sistemas, los términos específicos de la aplicación y los términos específicos del software. Se remite al lector a la literatura relevante para esas definiciones, así como a descripciones detalladas, explicaciones y ejemplos de los términos incluidos aquí.

 

Haga clic en el concepto para ver la descripción completa (en Inglés). 

Concept
Description
Accumulation (integration)
A gradual, non‐instantaneous increase or decrease of a quantity over time. An accumulator is also referred to as a stock or level and represents the state of a system. To accumulate is the act of increasing and decreasing the size of a state variable (a stock) over time.
Aggregation
The grouping of numerous distinct system components into one variable. Aggregation is done for simplicity when the grouping generates the same behavior of interest as those generated by the components separately.
Aggregation level
The extent to which the system components are aggregated or disaggregated.
Aging chain
A sequence of stocks connected by conserved flows in which the stocks depict the contents of the chain in different stages, conditions or locations, and the contents move in one direction along the aging chain.
Amplification
An increase in the magnitude of movements from an average value of a dynamic behavior, typically as in oscillations. Often implies a system response that is greater than is seemingly implied by input variables. Amplification can occur in information feedback systems when policies try to adjust levels to desired values in complex settings. It is associated with delays, order/inventory processes and forecasting.
Archetype
See system archetype.
Asymptotic growth/decay
Goal‐seeking behavior produced by negative feedback. The control stock moves towards the goal, slowing down as it approaches the goal.
Auxiliary (convertor) variable
An intermediate, conventional variable to facilitate the expression of functional dependency of a flow to system stocks. A convertor is capable of changing its value instantaneously.
Balancing feedback loop
A feedback loop in which the resultant effect of the causal links over time limits or constrains the movement of variables. Balancing loops seek equilibrium, trying to bring stocks to a desired state and keep them there. Also called a negative, compensating, goal‐seeking or controlling feedback loop.
Behavior mode
A shape or pattern over time of the values of a system variable. Behavior modes are typically displayed graphically using behavior‐over‐time graphs (BOTG), where time is represented on the x‐axis and values of the variables are represented on the y‐axis.
Boundary (system boundary)
A border enclosing the parts of system structure needed to generate the behavior of interest. The system boundary excludes all components not relevant to the problem behavior of concern.
Bounded rationality
The theory developed by Herbert Simon that human decision making is rational only insofar as the rational solution does not require calculations or mental efforts that exceed cognitive limitations and available information. Bounded rationality is a characteristic of human decision making that often impacts system performance.

Referencias:

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