ABSTRACT

Computer modelling and simulation involves the use of computer programs to represent operator and/or system activities or features (e.g. of the environment ­ Siegel and Wolf, 1 969) . Human performance data that have been previously collected, or estimates of task components, error probabilities, etc , are entered into the computer program. The program can then either simulate graphically the environment and workspace, or can dynamically 'run ' the task in real or fast time as a way of estimating complete cycle times and error likelihoods, etc . This has proven to be a convenient way of assessing the potential contribution of alternative configurations of tasks, equipment and team organizations.