Adding up for recruitment

I was recently involved in a recruitment where we scored the candidates against a number of criteria, then added the scores to determine the preferred candidate.

I wondered about this in terms of my post on scoring in procurement selections.

In the recruitment, did we rank candidates, in a Likert scale fashion, or did we give them a score in school quiz fashion.

If it was a quiz score, then adding might have been valid...if the scores were on the same base, but if Likert ranks, then we should have counted the number at each rank and compared them.

This would be closer to the approach I discussed, where a large number of criteria are established against which binary success-failure is determined. We then count the number of successes, and that person becomes the preferred one.