摘要：AbstractNowadays, management is one of the main basis of ruling the societies, because appropriate combination of existing factors and making adoption between those factors and finally making true decision for reaching to the demanded goal in an effective manner in refer to lack of sources and variety of limitations, is a great force to increase effectiveness of an organization.Now, we investigate the importance of decision making in various fields of current modern life and also the importance of rational theory in this article. We also mention to differences between decision making in modern and traditional methods and introduce the 6 stages of decision making.
关键词：Effectiveness;New management;Decision making process
