Note:
This model was originally described by Victor Vroom and Philip Yetton in their 1973 book titled Leadership and Decision Making. Later in 1988, Vroom and Arthur Jago, replaced the decision tree system of the original model with an expert system based on mathematics. Hence you will see the model called Vroom-Yetton, Vroom-Jago, and Vroom-Yetton-Jago. The model here is based on the Vroom-Jago version of the model.