To address the security risks of information systems to make accurate quantitative assessment of problems in the OWA operator and based on gray theory DHGF algorithm is proposed based on combining advantages of both information security risk assessment methodology. Information security risk assessment based on an a priori sample value index depth of excavation, the use of the basic methods of OWA operator, objective indicators derived property rights, and the use of gray theory for assessing the value of integration. This approach will be applied to information security risk assessment, to ensure the objectivity of the evaluation results, while reducing dependence on the assessed value of integrity, to solve the traditional information security risk assessment methodology for index data have special requirements, it is difficult strictly objective and quantitative problems. Assessment examples show the effectiveness of the method and objectivity.
Development of an Automated Security Risk Assessment Methodology Tool for Critical Infrastructures.
