TL 9000 is a quality management system designed specifically for the Telecommunications Industry. It is based around ISO 9000 and was developed by the Quality Excellence for Suppliers of Telecommunications (QUEST) Leadership Forum in response to product and service failures within the industry. Representatives from major stakeholders decided that only by defining specific quality needs and by setting clear goal objectives could the Telecommunications industry promote a culture for continuous improvement.
TL 9000 defines the telecommunications quality system requirements for the design, development, production, delivery, installation and maintenance of products and services. Included in TL 9000 are performance and cost-based metrics that measure reliability and quality performance of the products and services.
Success of the scheme is taking place as a result of its adoption throughout the supply-chain.