TL 9000

TL9000 is the telecommunications industry's extension to ISO 900I that covers the quality system requirements for hardware, software, and services. It is used to measure the reliability and quality performance of telecom products and services.

TL9000 aims to define the standards for the design, development, production, delivery, installation, and maintenance of products and services. Included in TL 9000 are cost and performance-based metrics that demonstrate continuous improvement and efficient performance.