What's the word for the period of time when you enter a new job or college?

And they wish to prepare or train you for the experience? I've been googling it for the past hour and looking up synonyms such as training or conditioning for it on thesaurus.com for the past hour. I expected google to fail because search engines are all overrun by commercialist enterprises, but I'm surprised a thesaurus didn't have the answer. Commencement is the word they used for leaving the college. What's the word for when you're entering the college and they make you go through a series of events? I remember mine was quite useless, since they just wanted us to watch stand-up comedians.