Decisions are something a lot of people have problems with. It is indicated by the fact that generally they are relatively hard and, besides, there are two solutions, both good or bad, and we have to pick what alternative is better for us. Consequently, we ought to not forget that it is not only our problem. Since the history of the mankind began, problems with making choices have existed and still are present. The same is at present connected with inter alia every greater business, which has to face different choices almost every day.