The method of making the decision depends upon its importance. The more important the decision, the more time consuming it would be and you would need more information for making the decision. While making the decision, you need to see its objective and importance, the people who would be affected by it and also the organizational aspects that would be involved. The most important thing is to analyze your resources and different alternatives. You would also have to gather the necessary information needed to make the decision. You also need to keep in mind the time frame in which you have to reach a result. You should also discuss the situation with you other managers so that all points are covered and they get to participate in the decision making process and this is very important these days. Always remember that whatever you decide should have a rationale to it and you should be able to communicate it to the other people working in the organization.