Answer / guest

The major challenges in Real time systems is.....

1.The time-dependent nature of real-time applications

2.The timing of the data and the parallelism of the tasks

3.In many situation test data for real-time system may
produce errors when the system is in one state but to in
others.

So the following way we have to approch in real time system
testing

Task testing: The first stage is to test independently the
tasks of the real-time software.

Behavioural testing: Using system models produced with
CASE tools the behaviour of the real-time system and
examine its actions as a result of external events.

Intertask testing: Once errors in individual tasks and in
system behaviour have been observed testing passes to time-
related external events.

Systems testing: Software and hardware are integrated and a
full set of systems tests are introduced to uncover errors
at the software and hardware interface.

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