The TIA QuEST Forum Integrated Global Quality (IGQ) working group defines system requirements for the design, development, production, delivery, installation and maintenance of telecom products and services and drives a measurement system that allows companies to track and benchmark results and improve performance. 

  • Ideal for any member organization focused on global ICT quality and industry-wide performance excellence
  • Works to harmonize quality system requirements and measurements in support of TIA QuEST Forum goals
  • Ensures that TL 9000 Handbooks are continually evolving and keeping pace with changes in the industry
  • Manages and produces the Supplemental Measurements Library 

IGQ Leadership

Nancy Patterson

Sheronda Jeffries


Stephen Choy

Supplemental Measurements Library

Includes measurement(s) not officially not published in the current TL 9000 Quality Management System Requirements or Measurements Handbook, which documents measurements that may one day be included or for inventorying measurements that individual organizations can use for their specific circumstances.

Supplemental Measures