This is probably a stupid question, but what is the difference between character-driven and story-driven?

I mean, I assume it's the focus, but everytime I try to think further than that my mind says well, a story without characters is a setting, and a character without a story is really going nowhere. And, to me at least, most rps unless they're nation rps, would seem to be more focused on the characters the players came up with, I mean, yes, you should generally give them an end goal or at least an idea of what they're supposed to be doing, but without developing the character motivation, it just becomes railroading. Or am I looking at this wrong?