Details of the acronyms used in the Figure 1.1: · Global DW: Global Data Warehouse · North America DW : North American Data Warehouse · Packages : Cognos Package used for reporting. · Cognos 10: Cognos Enterprise Server supporting Cube analysis · PDW : Proposed Data Warehouse. · Qlikview desktop: Qlikview desktop version installed on user computers · Qlikview : in memory OLAP tool · SQL Server: Server with SQL server installed · Access: Server with MS Access installed. · Source System 1 and 2: OLTP systems · Power User: Internal Key user who facilitates end user reporting · End User : Internal Users using reports and cubes. · Pricing server : pricing information feed into data warehouse. · Logistic server: logistic business data feed into data warehouse · SAP server: ERP system data feed into data warehouse. · Mainframe server: legacy application data feed into Data warehouse .