リスクアセスメント
Risk assessment is the determination of an estimate of risk related to a well-defined situation and a recognized set of hazards. Quantitative risk assessment requires calculations of two components of risk : the magnitude of the potential loss, and the probability that the loss will occur. An acceptable risk is a risk that is understood and tolerated, usually because the cost or difficulty of implementing an effective countermeasure for the associated vulnerability exceeds the expectation of loss.