The process took 1 day. I interviewed at Atos in Mar 2010
Interview
The HR gathered a group of 6 - 7 applicants for a short case study. We were divided in groups and given a set of problems to solve. Basically what they were looking for is our working style and how we deal with people. The Senior VITM was there as well. A few days later, they called back to inform the outcome of the interview.
Interview questions [1]
Question 1
Imagine you're in charge for an event's catering. If one of our customers develop food poisoning, what would you do?