The Ministry of Defence has admitted its multi-billion pound Defence Information Infrastructure project has faced a “number of obstacles during the early stages of roll-out.”

But the MoD insists the programme, being implemented by the EDS led Atlas consortium, is back on track.

“The benefits and efficiencies of DII are being delivered; roll-out has improved significantly and is now consistently delivering 3-4,000 terminals per month with 50,000+ users benefiting,” said the MoD, in response to media reports that the project was running late and in trouble.

“Lessons have been learnt from both the MoD and Atlas perspective to ensure the process is more effective on future sites.”

Computerworld UK understands that parts of the roll-out were delayed to fit in with changing military deployments.

Troops have been withdrawn from Northern Ireland, and an increasing number have been sent to Afghanistan, while the level of the military’s ongoing deployment in Iraq is not clear.

This contributed to a decision to begin the initial roll out of new systems to smaller sites, with over 200 applications migrated onto the new system in these locations.

A spokesperson for EDS said it was important for the technology to be implemented at the most suitable time in the field. “The DII programme was always intended to demonstrate flexibility and to be able to reflect the changing environment our armed forces operate in,” he said.

“This flexibility has been reflected in the programme thus far, and we will be driving forward the further rollout of DII in partnership with the MoD.”

EDS was appointed the Ministry of Defence contract after demonstrating its ability to turnaround its contract with the US Navy Marine Corps to build an intranet for over 300,000 users.

The original Marine Corps $6.8bn (£3.3bn) deal was signed in 2,000 and was renegotiated in 2004.