562015-03-24 , 法政大学大学院理工学・工学研究科
A Security Field Model calculate dynamically the risk based on the worth of information, the protection for information and the threat to information. By controlling security according to the risk from the model, it is possible to protect the information balancing Confidentiality with Availability. In this paper, we examined the appropriateness of this model by applying the placement of information and people in the office. Using three indices, we modeled the Security Field considering the risk change due to movement of the person.