An Study on Information Security Optimization Based on MFDSM

Information security has drawn much concern nowadays. However, the fact that information risks are related to interrelationships and dependencies among tasks, activities, processes and people is not realized and emphasized. To solve the problem, we extend the design structure matrix (DSM) method proposed by Steward and Eppinger to the field of information security to eliminate waste and shorten the information flows. We define a systematic approach MFDSM based on information availability, integrity and confidentiality and introduce information entropy into the model to represent the information amount in the flows. Aiming at optimizing the operational procedures within enterprises and alleviating the interdependent risks, we proposed the optimized steps in detail to give application instructions