The BBC is moving away from a single supplier for its in-house technology as Atos’s 10-year, £2bn technology framework deal draws to a close.

The broadcaster will adopt the supply model used by organisations such as the Ministry of Justice and the National Grid when its deal with Atos - formerly Siemens - ends in March 2015.

The BBC said it hopes the ‘tower model’ will lead to “new commercial and technical opportunities for effective competition between suppliers”.

It has identified seven ‘towers’: technology service desk; end user computer; connectivity services; hosting platforms and app management; business systems; production and broadcast services; and distribution services.

The broadcaster is now inviting suppliers to bid to provide services, either individually or as a group.

The first round of procurement will take place in the third quarter of this year, with the others following in 2015.

The process will close by March 2017, with Atos set to work with the broadcaster during a two-year handover period.

The tower model does not include special projects so, separately, the BBC has asked external suppliers to help it tackle some of the issues that the in-house DMI scheme failed to address.

Under the title of the ‘End to End’ digital programme, the broadcaster has asked for information to “shape our plan and approach for a pan-BBC digital archive, media asset management and media workflow solution”.

Separately, contracts currently held by Red Bee Media to look after the playout of the BBC’s network channels and its BBC World News channels, worth up to £250m over a 10-year period, are now up for grabs.

Playout is included in the tower model but a BBC spokesperson said there were no plans to bring network playout in-house.