Executive Information Systems and The Data Warehouse EIS-The Promise EIS is one of the most potent forms of computing Through EIS, the executive analyst can pinpoint problems and detect trends that are of vital importance to management. EIS processing is designed to help the executive make decisions. Some of the typical uses of EIS are : Trend analysis and detection Key ratio indicator measurement and tracking Drill-down analysis Problem monitoring Competitive analysis Key performance Indicator monitoring A Simple Example Drill-Down Anaysis Example 2 Example 1 Supporting the Drill-Down Process How to supporting the drill down process ? The Data Warehouse as a Basis for EIS With a data warehouse, the EIS analyst does not have to worry about the : Searching for the definitive source of data Creating special extract programs from existing systems Dealing with unintegrated data Compiling and linking detailded and summary data and the linkage between the two Finding an appropriate time basis of data Management constantly changing its mind about what needs to be looked at next Where to turn The EIS function uses the following The data warehouse for a readily available supply of summary data The structure of the data warehouse to support the drill-down process Data warehouse meta data for the DSS analyst to plan how the EIS system is built The historical content of the data warehouse to support the trend analysis that management wishes to see The integrated data found throughout the data warehouse to look at data across the corporation Event Mapping What is event mapping ? Why using event mapping ? Example Detailed data and EIS Is so wrong with keeping all the detail in the world around when building a DSS/EIS environment ? Keep only summary data in the EIS