ABSTRACT
Databases are used to store a geometric representation of the environment in which the system is immersed. The behaviour of the system in this environment is specified in terms of a mathematical model. At the start of a training scenario, this model is initialised to a specific state and to a specific position and orientation relative to the environment. Changes in system state and position and orientation occur by means of inputs to the model. These inputs may originate from the control inputs of the trainee or from the environment. The output of the model may be a change in the state of the system, a change in orientation/position of the system relative to the environment, or a change in the environment. The trainee, via instrument cues and non-instrument cues, perceives these states and changes in states. Cues are generated by the different available cueing systems, e.g., the Trainee-Simulator Interface, the sound system, the image system, and the motion system. Thus, all information flow during the execution of a training scenario is initiated and sustained by interactions between the database (the environment) and the simulation model (the system).
