HLA Middleware Robustness and Scalability Evaluation in the Context of Satellite Simulators

Satellite simulators are used to support the tasks of space mission analysis and satellite verification and operation, having high dependability requirements. When used for different missions or different phases of the same mission, robustness and scalability are two particularly important properties. This practical experience report presents the results of a robustness and scalability evaluation of two open-source Runtime Libraries implementing HLA, a standard widely used in the context of simulators development. Results show that the tested implementations present a large number of robustness problems and that scalability is quite limited.