I applied through college or university. The process took 2 months. I interviewed at BPI - Business Performance Institute (Milan) in Sep 2016
Interview
I applied to BPI through my university career website.
The whole process took 2 months as I was working full-time, yet the team was available to make interviews in late afternoon. I believe normally the process can take less time.
There were 3 main steps:
1. HR Manager interview
2. Case-based interviews
3. Partner final interview
The company website was very helpful in explaining the process (bpi.eu.com)