Using the usability laboratory: BT's experiences
CHRIS FOWLER, Jonathan David Stuart, TONY LO, Mike Tate · Behaviour and Information Technology · 1994
British Telecommunications PLC (BT) is a global telecommunications company providing a wide range of products and services, supported by a large research and development organization which includes a Human Factors Unit (HFU). Part of the HFU's work is to ensure that BT's current and future products and services are useful and usable. A team within the HFU has recently carried out a reassessment of the processes, tools and techniques required for effective and efficient usability evaluations. The existing facilities, reasons for change and benefits to the company are described in the context of a usability evaluation framework.