I'll take the opposite side of this and mention that I am a key recruiter for new college hires at Harris. We run interviews similar to the way Elgin mentioned it... 5 interviews, entrance & exit with HR (including filling out paperwork) a video of rochester, an overview of our products, and lunch and the previous nights dinner with recent college hires.
The reason for the 5 separate interviews is because we use the STAR methodology. The closest thing I could find quickly on the internet was
this paper .
Basically each interviewer is looking for different aspects of nearly 10 different criteria. We get together at the end and compare, and discuss the candidate overall.