Some collaboration software allows users to vote, rate, and rank choices, often for the purpose of extracting the collective intelligence of the participants. The votes, ratings, and rankings can be used in various ways such as:

In the case of decision making, Condorcet voting can combine multiple perspectives in a way that reduces intransitivity. Additional uses of collaborative voting, such as voting to determine the sequence of sectionsin a Wikipedia article, remain unexplored. It's worth noting that no matter what voting method is implemented, Arrow's Impossibility Theorem guarantees that an ideal voting system can never be attained if there are three or more alternatives that are voted upon.

In addition to allowing participants to rank pre-existing choices, some collaboration software allows participants to add new choices to the list of choices being ranked.^[22]

Voting in collaboration software is related to recommendation systems that generate appreciated recommendations based on ratings or rankings collected from many people.