From publisher blurb:
Starfinder character generation puts all of the choices into your hands, allowing you to create any character concept that you’d like play. This is a great way of doing character creation, but sometimes you want something different—something random, something very random.
Like, “Holy Crap! I just died during character creation!” random.
If you find yourself in that mood, if you find yourself wanting to “discover” the character that you’ll be playing as opposed to “building” it, Career Path Character Creation (CPCC) is for you. You’ll start out playing a character with a full-blown history as opposed to a character fresh off the farm.