MEH531 Gömülü Sistemler - KULIS

Characteristics of Embedded Systems (3)
Many a y ES S must ust meet eet real-time ea t e co constraints st a ts
– A real-time system must react to stimuli from the
controlled object j ( (or the operator) p ) within the time
interval dictated by the environment.
– For real-time systems, right answers arriving too late
are wrong.
– „A real-time constraint is called hard, if not
meeting ti that th t constraint t i t could ld result lt in i a
catastrophe“ [Kopetz, 1997].
– All other time time-constraints constraints are called soft soft.
– A guaranteed system response has to be explained
without statistical arguments
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