Decision trees can help you if you have to choose between
many alternatives, you should analyze how each choice
benefits or hurts the project before making decision.
They are models of real situations and are used to make informed decisions
about things like "Which option should I choose? or How will I solve this
problem" by taking into account the associated risks, probabilities and impacts.
A decision tree takes into account future events in making a decision today
With a decision tree, you could evaluate the cost and benefits of several
risk responses at once to determine which would be the best option.