​​Provision of safety critical software technical expertise to support ORR staff undertaking regulatory oversight of TfL's Four Lines Modernisation Project​

The purpose of this tender is to undertake a 'deep dive' and assess a sample of the actions taken by TfL and Hitachi Rail in relation to the requirements of relevant standards. The deep dive will include: Review the software development practices in place now for the next major software upgrade, including a deep dive to look at a sample of subsystem specification and associated software specification. Opinion will be required on the scope and sufficiency of testing as preparation for the next major software upgrade, to include a sample verification that any root cause analyses which may have the potential to affect safety have been addressed, as well as an assessment of any equally effective measures which have been undertaken.