This study examines the traditional approach to software development within the United Kingdom
Government and the accreditation process. Initially we look at the Waterfall methodology that has been
used for several years. We discuss the pros and cons of Waterfall before moving onto the Agile Scrum
methodology. Agile has been adopted by the majority of Government digital departments including the
Government Digital Services. Agile, despite its ability to achieve high rates of productivity organized in
short, flexible, iterations, has faced security professionals’ disbelief when working within the U.K.
Government. One of the major issues is that we develop in Agile but the accreditation process is conducted
using Waterfall resulting in delays to go live dates. Taking a brief look into the accreditation process that is
used within Government for I.T. systems and applications, we focus on giving the accreditor the assurance
they need when developing new applications and systems. A framework has been produced by u