[citation needed] TSFdn evolved from a number of previous activities: TSFdn primarily aims to provide a living backbone for signposting to diverse but often obscure sources of Good Practice, with a secondary objective to address other aspects of the 2009 Trustworthy Software Roadmap.
[3] TSI considers that there are five facets of trustworthiness: This definition of trustworthiness is an extension of a widely used definition of dependability,[4] adding as a 5th Facet of Resilience based on the UK Government approach.
[5] TSFdn operates as a not-for-profit Company Limited by Guarantee, jointly owned by the subscriber organisations – UK professional bodies.
[6] It is based at the Cyber Security Centre of the University of Warwick, and is formally linked to a cross section of stakeholders through the Advisory Committee on Trustworthy Software (ACTS).
The Technical Lead remains Ian Bryant, the Technical Director of the predecessor TSI, and the Chair of the ACTS is Sir Edmund Burton KBE,[7] who was the President of the predecessor TSI.