Simulating faults in integrated systems and their impact on the aircraft

Outcomes from Case Study • Component failures can be simulated by violating component axioms to identify their impact on the integrated system and the aircraft. • Such simulations can identify requirements for other components • The timing of components executing a task is an important criteria to consider WMC Simulation Environment • Ability to allow a range of component models • Allows each component to specify its own update time • Using shared format for storing data as resources allows for simple models to be generated quickly • Incorporating simple representations of component models is sufficient to obtain an initial understanding of the effects of violating axioms • Its streamlined form allows for a large number of runs examining a number of test cases in lesser time • As the design and test program progresses, potential also exists to include progressively detailed — and ultimately complete — models of the components