ABSTRACT
A real-time system is a system in which the correctness of the results does not only depend on the logical correctnessofthecomputations/operationsperformedtoobtainthembutalsoonthetimetheresults areobtained[Kop97,Sta88].Logicallycorrect,butlateresultscanbeeithernotusefulorevenharmfulto thesystem,dependingonthenatureoftheapplicationconsidered.Examplesofreal-timeapplications arefoundinindustrialplantcontrols,automotive,avionics,industrialautomation,robotics,monitoringsystems,multimediasystems,telecommunications,interactivesystems,andconsumerelectronics. Unlikeconventional,non-real-timecomputersystems,real-timecomputersystemsarecloselycoupled with the physical process or the environment being monitored and controlled.
