The authors conducted a questionnaire survey for the purpose of analyzing how severe the disasters are assumed in BCP and which measures are being taken. We have analyzed priority of risk countermeasures and content of countermeasures. In this paper, ratio of cumulative number of respondents to the questionnaire to the total number of respondents is regarded as subjective probabilities of restoration periods or frequencies of assumed disasters. In this way, we regard the recovery performance of facilities or the frequency of assumed disasters as a subjective probability that quantitatively evaluates how people think, and propose them as assumed curves.
