I applied through college or university. The process took 1 day. I interviewed at IBM (Ann Arbor, MI) in Oct 2014
Interview
1 Day,3 Interviews, 30 Minutes Each. 1 Case, 2 Behavioral. You go in and do your interviews back-to-back-to-back. Only one round and you hear back within a couple of weeks. Pretty standard interview, they will go through your resume and some of the reasons for why you want to be a consultant and work for their company.