The Defence Information Infrastructure (DII) programme will deliver a single, secure, coherent and high quality computer infrastructure service across the whole of defence. The associated software functionality is being delivered in stages, called Releases, but I can confirm there is no Release called “2C”. The costs of software releases are not held separately as they are an intrinsic part of the wider delivery nor are they associated with desktop terminal numbers.
The current contract will run until 2015 and is let on an incremental basis. It includes Increment 1, Increment 2a and 2b, which provide office, mobile and deployable capabilities, and in January 2009 we signed a contract extension for Increment 2c, to provide new operational capability in the Top Secret domain. The approved programme costs for Increment 2c are £257 million; the contract element is £191 million at 2008 prices.
The whole DII Programme has to date delivered 75,000 terminals, with 190,000 users now live on the system.