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definition: a system that combines management theory and methods applies information technology to solve management pr

The unit of the information amount is determined to be bit. 1.2 three dimensional structure of information system Hall: time dimension logic

information system. 1.1 definition of information Shannon in the mathematical theory of communication

system. 2) Information system construction: complexity of information system construction life cycle of information system (each stage and its main work content) principles of

1) Information system: concept of information system function of information system type of information system and development of information

assessment methods project hypothesis premise assessment and data accuracy assessment full process guidance for information system project manager examination

nalogy method expert consultation 2Risk assessment methods probability distribution (expert prediction) extrapolation (using historical data) q

vmind scenery method interview method and Delphi method) Financial statement method flow chart method (network or WBS method) on-site observation m

infeasible 17. Design 8. Implement 25.2 safety risk identification 25.3 risk identification and risk assessment methods

Design the corresponding original Countermeasures - control risks according to the magnitude and priority of risks 5. Carry out input-output assessment on the design

consequences of the identified risks - risk assessment 4. Design the corresponding original Countermeasures - control risks according to the magnitude and priority of risks

1. Function of proposed new system - objective 2. Analysis of existing system (business process)

analyze identify and evaluate the security risks of the information application system and formulate preventive measures for it. The

Chapter 25 information system security risk assessment 25.1 information security and information risk how to design and formulate an information security assurance system for a

network to ensure the normal operation of other business application information systems

architecture 1. MIS + s: primary information security assurance system features: ⊙ application is basically unchanged ⊙ software and