As modern enterprises’ dependence on complexinformation system is growing, higher risks of using theseinformation systems are thus incurred. This paper firstlymade an overview of both the importance of complexinformation systems in enterprises and the universality ofrisks. Then proposed and analyzed are eight types of risksof complex information systems in enterprises:infrastructure, systemic projects, system application,information asset, business continuity, information systemstrategy, information system supplier and outsourcer,external risks of information systems. Finally, these eightrisks are introduced to construct a risk evaluation model onthe enterprises’ complex information system based on theBP neural network.
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