There are many threads asking about whether that person is an Aspie or not. There is a thread called "You might be an Aspie if...", but it's certainly quite time consuming to sift through it and see whether all of them apply. I think it's easier to perhaps find things and characteristics that disqualify someone from being an Aspie. I realize that every Aspie is an individual, and that the diagnostic criteria are not set in stone, but there must be some things that disqualify someone from being an Aspie. To take into account this ambiguity, write it in this format:
Characteristic which is un-Aspie - Disqualifying Factor: x%
where if x = 100, it totally disqualifies someone from being an Aspie, and if x=0 it doesn't disqualify someone at all.