Forty years ago-or even thirty-performance engineering was a very different area from what it is now. For a start, it was then termed 'teletraffic'; more significantly, the range of systems and problems studied was much narrower, the variety much less, and the speed of evolution incomparably lower. Only with the opening-up of the business following privatisation and liberalisation in the 1980s did this attitude begin to alter. Within the UK, a sea change was effected by the so-called 'overall grade-of-service' studies carried out within BT, which made evident for the first time the extent of variability of performance figures over a properly managed network

Inspec keywords: telecommunication traffic; telecommunication network management; telecommunication switching

Other keywords: telecommunication network management; performance engineering; teletraffic

Subjects: Network management