Case Study: The Highways Agency achieves safer, reliable NASS testing with QA Systems Cantata

The Highways Agency - Customer Case Study

The Highways Agency, an executive agency of the UK Department for Transport, needed to develop a new subsystem for its motorway network to predict and mitigate congestion. The challenge was to create the safety-critical NASS software to the IEC 61508 SIL 1 standard, requiring a rigorous and fully documented testing process. To meet this challenge, they partnered with vendor QA Systems and utilized their Cantata testing tool.

QA Systems implemented Cantata to automate and manage the extensive unit, component, and integration testing required by the standard. This enabled the team to achieve 100% statement and condition coverage, create a robust regression testing facility, and generate the self-documenting test evidence needed for certification. The solution provided the Highways Agency with the necessary confidence in the system's safety and reliability, leading to the successful deployment of NASS at the Regional Control Centre to help ease motorway congestion.

The Highways Agency