1. A method of employing a computer system to determine how a first entity relates to a second entity with regard to a set of values, for each entity, receiving inputs into the computer system that indicate for each value in the set thereof a rating number indicating a position which the entity has assigned the value in a hierarchy; and in the computer system, comparing for each value the rating numbers for the entities for that value to obtain a comparison result and using the comparison result to determine how the first entity relates to the second entity.