The fault tree example shows the causes and risk of a water pump failure. Using an online decision tree diagram maker like EdrawMax, it is easy to determine the valve failure, faulty indicator, light fall, control command fail, or the inability to open a valve on the operator's part. Fault Tree Analysis is a diagrammatical representation of different causes of system failure. Whenever an undesirable event occurs in an organization, you need to analyze its origin with the help of Fault Tree Analysis. Learn more details from this diagram, or try to make yours with ease now.