From my own experience, NOT with PAR, I know these things are extremely informal. Like us, they walk the aisles, ask a few questions, make a few notes and voila!
I once met a similar person (again, not from PAR) who had to write a similar article. He asked me what I liked of what I saw and I told him. I had never even met him before and that was good enough for him and became his answer.
I am confident these things are tied very heavily to advertising. That is certainly the case with "Mix's" blogs they emailed this year. If you advertised in the mag, you got covered in the blog. If not, you didn't.
PAR and Tec Awards are largely without merit as far as I can see. Tec Awards are a way to increase manufacturer advertising in the mag. When you send in your "ballot," it is a quick and painless method of market research. Manufacturers get an "award" that is supposed to "encourage" the prospective buyer into thinking this product is somehow superior.
I can see how it might be similar with PAR. "We will give you a PAR Award if you advertise with us." Or, "We gave you a PAR award how about advertising?", etc.
I can think of at least one TEC Award winner whose product never even got to market before "winning" the award.
Barry