Does anyone work with Function Points? [closed]

Answer 1

1. No because any particular requirement can have an arbitrary amount of effort based on how precise (or imprecise) the author of the requirement is, and the level of experience of the function point assessor.
2. No because administration of imprecise derivations of abstract functionality yield no reliable estimate.
3. None if I can help it.
4. Tools? For function points? How about Excel? Or Word? Or Notepad? Or Edlin?