Abstract
Project has many uncertain things, in other words, risks. Therefore, risk management has an effect on the project success. Project risk has three essential factors: "Uncertainty", "Loss", and "Time Component". The term "Time Component" means risk have temporal. But, now, there is no tangible method for risk management to consider "Time Component". On the contrary, there is FTA (Fault Tree Analysis) that is one of reliability engineering methods. It is possible to clarify causal relation of breakdown systems for top-down method. In addition visually and deductive analysis is possible. And so, this paper proposed to utilize FTA to risk management. Concretely, procedure for making FT diagram at the same time as identify risk event, and method of utilizing FT diagram are proposed.
