3 twenty minute interview sessions with groups of 2-3 supervisors. Supervisors and team leads conducted these interviews. It took a little over an hour.I don't think they ask anything pertinent or rarely asked anything that could show your abilities to do the job duties. In your words what does GMP mean to you? Questions using industry jargon plentiful.

It was a panel interview with 5 department managers. The process was not difficult because I was prepared well. I felt there was nothing that they could ask me that I did not know the answer to.