Question

A decision based on who is harmed the least is an example of which type of decision making

Answer 1

It is based on the type of Ethical decisions, where what is always sought is to always do the greatest good, and the least harm, the least possible damage and the least amount of people.

Answer 2

Group decision making or collaborative decision making is the type of decision making that is done based on the one who is harmed the least.
This decision making is done by the group of people and comes up with a decision that will be helpful to them