Error Control Definition/Meaning:
The employment, in a computer system or in a communication
system, of error-detecting and/or error-correcting codes with the intention of
removing the effects of error and/or recording the prevalence of error in the
system. The effects of errors may be removed by
correcting them in all but a negligible proportion of cases. Error control aims
to cope with errors owing to noise or to equipment malfunction - in which case
it overlaps with fault tolerance (see fault-tolerant system) - but not usually
with the effects of errors in the design of hardware or software.
Error control is expensive: the balance between the cost and the benefit
(measured by the degree of protection) has to be weighed within the
technological and financial context of the system being designed.