System conversion methods include direct conversion, parallel conversion, and segmented conversion. Direct conversion, this conversion process is simple, fast and low-cost; parallel conversion, this method is safe and secure; segmented conversion, this method can ensure the smoothness and safety of the conversion process, reduce risks, and avoid higher costs.
Answer: There are three ways to convert the system:
(1) Direct conversion.
Advantages: This conversion process is simple, fast, and low-cost;
Disadvantages: The risk is high, and this method is only suitable for the conversion of small management information systems.
(2) Parallel conversion.
Advantages: This method is safe and insured.
Disadvantages: High cost. This approach is suitable for the conversion process of core systems of banks, finance and some enterprises.
(3) Segmented conversion.
Advantages: This method can ensure the smoothness and safety of the conversion process, reduce risks, and avoid higher costs
Disadvantages: There is a connection between the corresponding parts of the new and old systems There is a problem with not smoothing the transformations used in a large number of management information systems this way.
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