Mạng và viễn thông P34

Quality o Service (QOS) and f Network Performance ( N P ) The maintenance of good quality for any product or service (i.e. its ‘fitness for purpose’ and its price) isofsupremeimportance to theconsumerandthereforerequiresutmostmanagement attention. However, although it easy enoughto test a tangible product destruction, measureis to ment of the quality of a service is more difficult.