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NATO Modelling and Simulation - Glossary of Terms Project

The aim of this document is to create a common understanding of M&S terms and where agreement cannot ultimately be reached, to understand variations in definitions. The M&S community is kindly invited to help us improving this living document by using the dedicated feedback form.

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The decision to use a model, simulation, and the associated data for a specific purpose.
GM-VV: SISO-GUIDE-001.1-2012 on “Generic Methodology for Verification and Validation (GM-VV) to Support Acceptance of Models, Simulations, and Data”
In the United States the term “accreditation” is preferred while not exactly synonymous (see the following definition). In other communities “certification” is the process of providing a written statement that a (M&S) system is acceptable for operational use.
  
The official certification that a model, simulation, or federation of models and simulations and its associated data are acceptable for use for a specific purpose
US DoD
see also : Acceptance
  
The degree to which a parameter or variable, or set of parameters or variables, within a model or simulation conforms exactly to reality or to some chosen standard or referent.
  
A model of the processes that make up the functional activity showing inputs, outputs, controls, and mechanisms through which the processes of the functional activity are (or will be) conducted.
MSG-120
  
A computer system capable of autonomous action - of deciding for itself what it needs to do to satisfy its design objectives, and capable of interacting with other agents.
MSG-120
  
A group of entities considered as a single unit.
MSG-120
The substitution of the word "unit" is used to avoid phrases like "aggregate aggregate”.
  
The ability to group entities while preserving the salient effects of entity behaviour and interaction while grouped.
MSG-120
  
AFAP
A constructive simulation system where there is no explicit relationship between wall clock time and the rate of time advancements.
MSG-120
See also non-real time simulation
  
A type of virtual reality in which synthetic stimuli are registered with and superimposed on real world objects; often used to make information otherwise imperceptible to human senses perceptible.
MSG-120
  
A virtual object used to represent a participant or physical object in a simulation; the (typically visual) representation may take any form.
MSG-120
  
BOM
A single aspect of federation interplay, which can be used as a building block of Federation Object Models (FOMs) and Simulation Object Models (SOMs).
Australian Defence Simulation Glossary
  
Refers to both the physical environment in which the simulated warfare will take place, and the forces that will conduct the simulated warfare.
Australian Defence Simulation Glossary
See also Synthetic Environment and Simuland
  
A simulation entity that corresponds to actual equipment, supplies, and personnel, which typically is seen or sensed on a real operational environment.
Australian Defence Simulation Glossary
  
Modelling of representative entity behaviours in which individual or group behaviours are derived from the physical, psychological or social characteristics of the sentient and non-sentient systems represented.
Australian Defence Simulation Glossary
Preferred Term 
Abbreviation 
Admitted Term 
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