body: In copyright case law, what roles do *process* versus *output* play in determining infringement via creation of a similar work. By *process* I mean, "How much access did the creator of the new work have to the putative base work?" By *output* I mean, "How similar, textually, is the new work to the older work?"
  
  
  I am primarily curious about the USA.
  
  
  
title: What considerations determine copyright infringement?