Data quality can not secure correct report publishing. Provided data can be of highest quality but if administrator that publishes reports or business analytic that publishes analysis misinterprets data, result will be poor information quality for decision makers.
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Company information system consist of: Transaction systems and management infromation system, Decision support system, Communication and collaboration system.
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Difference between data integration and unification is best to consider through Data Warehouse (DWH). It is widely used technology and it quite often being treated to help company with both crucial data quality issues. Data unification is something what Data Warehouse (DWH) does with ease since it is constructed to gather information from many sources with purpose to speed reports and to store data. All data are in same storage place customized for reporting processes.
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