| sales by product, geography or salesman,expenses by category, month or department.
Data is generated by Enterprise Resource Planning (ERP), Operational Support and other enterprise and department-level systems. Data from multiple systems is collected, cleaned, transformed, catalogued and loaded to a Data Warehouse. BI tools typically use the data gathered in the warehouse, though there are tools that can use data directly from operational systems and applications, thus providing real-time intelligence. BI tools enable querying and reporting and provide alerts.
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