Aviation Combined Arms Tactical Trainer (AVCATT): AVCATT will provide a networked simulation capability to train and sustain individual, crew, collective, and combined arms aviation skills in a realistic, high intensity, interactive environment. Each component of AVCATT is interconnected through a DIS compatible LAN to enable interoperability with other Combined Arms Tactical Trainers (CATT). AVCATT is the aviation component of CATT.
Collective Training Simulators: Simulators that implement a dynamic, alternative instructional concept that allows war fighters to rehearse and train, through networked simulation, in unit collective and combined arms simulated battlefield environments.
Computer Based Trainer: The CBT is a Classroom System Trainer (CST) that provides computer based instruction to KIOWA Warrior users and maintainers by providing interactive maintenance and crew mission equipment package training. CBT uses COTS hardware and an automated authoring system.
Distributed Interactive Simulation (DIS): A time and space coherent synthetic representation of world environments designed for linking the interactive, free play activities of people in operational exercises. The synthetic environment is created through real-time exchange of IEEE 1278 compliant protocol data units between distributed, computationally autonomous simulation applications in the form of simulations, simulators, and instrumented equipment interconnected through standard computer communicative services. The computational simulation entities may be present in one location or may be distributed geographically.
Fidelity of Simulation: (a) The similarity, both physical and functional, between the simulation and that which it simulates. (b) A measure of the realism of a simulation. (c) The degree of similarity between a model and the system properties being modeled.
Full Flight Simulator (FFS): A high physical and functional fidelity device that simulates a wide range of operations. It recreates sounds, motion, visual scenes, instrument presentations and all other systems in order to create a realistic flight training environment. The handling characteristics represent actual aircraft characteristics based on available flight data and input from experienced pilots. Also called: (a) Dynamic Mission Simulator (DMS), (b) Full Mission Simulator (FMS), (c) Operational Flight Trainer (OFT), (d) Combat Mission Simulator (CMS), and (e) Weapon Systems Trainer (WST).
High Level Architecture (HLA): Major functional elements, interfaces, and design rules, pertaining as feasible to all DoD simulation applications and providing a common framework within which specific system architectures can be defined.
Modeling and Simulation: The development and use of live, virtual, and constructive models including simulators, stimulators, emulators, and prototypes to investigate, understand, or provide experiential stimulus to either conceptual systems that do not exist or (b) real life systems which cannot accept experimentation or observation because of resource, range, security, or safety limitations.
SIMNET (Simulator Network): A Defense Advanced Research Projects Agency (DARPA) project the goal of which has been to develop the technology to build a large scale network of interactive combat simulators.
Simulation: (a) A model that behaves or operates like a given system when provided a set of controlled inputs. The process of developing or using a model as in (a). (c) An implementation of a special kind of model that represents at least some key internal elements of a system and describes how those elements interact over time. Most combat simulations are implemented as computer programs. A method for implementing a model(s) over time.
Simulator: (a) A device, computer program, or system that performs simulation. (b) For training, a device which duplicates the essential features of a task situation and provides for direct practice. (c) For Distributed Interactive Simulation (DIS), a physical model or simulation of a weapons system, a set of weapon systems, or piece of equipment which represents some major aspects of the equipment’s operation.
Validation: The process of determining the extent to which a M&S is an accurate representation of the real-world from the perspective of the intended use of the M&S. Validation methods include expert consensus, comparison with historical results, comparison with test data, peer review, and independent review. The formal process of determining the degree to which a model or simulation is an accurate representation of the real world from the perspective of the intended uses of the model or simulation.