* TPS
* MIS
* DSS
* EIS
* ES
Transaction Processing System solves routine problems at the operational level and produce periodic reports , focus on transaction handling and records keeping.
Management Information System solves structured problems and provided information for all levels of management.
Decision Support System solves semistructured and unstructured problems , use query languages ,modeling and graphic , user-friendly , interactive.
EIS is a subset of DSS emphasize using graphic and external data.
ES a knowledge base system , interactive , makes recommendation , response to users'question , knowledge tends to grow because it learns from user feedback.
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