Method for calculating loss on business, loss calculating program, and loss calculating device

摘要

A method for calculating a loss in business that can exactly calculate losses, which will occur in the future in business, and their variance in particular is provided. For a plurality of business processes constituting business, an error occurrence rate 0113 in each business process, and probability distribution of losses 0114 produced when an error has occurred in the business processes, are used as inputs. In addition to them, for a transaction handled in the business, a business process transition probability 0112 which denotes a probability that a transaction executed in a preceding business process will be executed in a subsequent business process is used as an input. Losses which will occur in the future in the business are thereby calculated.