title: Exactly what is a "third party"? (And who are the first and second party?)
body: <p>I know precisely what a "third-party library" is, so I assume that the "third-party" in this case, simply is an arbitrary person/company other than the developer?</p>
  
  <p>Has it to do with "first person" / "second person" etc perhaps?</p>
  
  <p>The fact that there is a "third party" suggests that there is a "first party" and a "second party" as well. Are those terms well defined?</p>
  
  <p>(I'm not a native english speaker.)</p>