Ship Navigation System Risk Assessment

The information technology is getting more important for ship navigation.Many deep studies are carried out on system information risk assessment for ship navigation.Risk assessment is an important means to get a better understanding for the security status of navigation system and its results are the basis of a security solution.The key of the risk assessment is to find out a measurement method so as to make a full use of different specialists' knowledge realizing scientific and reliable decision making.With the inference analysis of decision-making method as well as the analysis of real user's situations,a ship navigation information system risk assessment technique based on AHP and Delphi is presented.The relative importance of assessment index is estimated by Delphi,while AHP is applied for a quantitative assessment.This method is a practical and effective way for the decision-making of risk assessment.