The major players in the Business Intelligence industry include Microsoft, IBM Cognos, SAP, Oracle and many more. These companies provide the necessary hardware and software to process the vast amounts of data in BI systems. The data is received from end-users by a data warehouse. Here, the data goes through three separate layers:
1-Staging: developers gather the raw data, standardize it for easy comparison and prepare it for classification and analysis.
2-Integration: the raw data is classified, organized and catalogued for easier end-user access.
3-Access: the now user-friendly data is delivered to end-user applications.