Identification for the need for making the decision. Recognizing a problem where decision has to be made is an important step.
Gathering related information. Gathering some facts and data related to the problem will help to make the decision faster and correct.
Identifying available alternatives. Keeping alternatives is always better, if plan A does not works or fits in we should always have plan B or the other alternative ready with us.
Measure the evidence available. With all the data and information identify the pros and cons of all the alternatives and consider them for making a decision.
Choosing the correct alternative. It is very important to identify and use the correct combination of the alternatives available to make decision.
Act on the decision. Once everything appears to be in place it will be the best time to act on the decision considering rest all other points.
Review. Reviewing your decision will help to find if there is something missing or any flaw in it and accordingly modifications can be done.