Traffic Service Position System No. 1: System Verification and Evaluation Procedures

A significant part of the effort required for any switching system development involves determining whether the system performs properly. The ultimate judge of system performance is the user. In making this judgment, the user considers both system reliability and maintainability. Since Bell System standards for service are very high, measures of acceptable performance are rigorous. Thorough plans are made to ensure that switching systems provide this required high level of performance. These plans begin with the initial concept of a switching system or new feature and continue throughout the development process. Every design decision is based on providing the best possible service at the lowest possible cost. Each decision is evaluated for its impact on the customer who uses the switching system and on the operating company that must administer and maintain it. This paper discusses the methods used to verify and evaluate system performance of the Traffic Service Position System (TSPS). It also 1335