I mentioned that various methods and tools are available to support a BI programme. One such a tool (perhaps rather a method or discipline), has the objective of making data centrally availabe for extraction and analyses. This is referred to as Data Warehousing. DWH as part of an Information Architecture requires its own principles and standards in order to succeed and ensure that the potentially huge sums of money are well invested. This is easier for smaller organisations where coordination and governance can be applied with less effort than in larger organisations. DWH can be skills intensive, for example if SAS or SAP Bi tools are used, it will require skills specific to these platforms to develop and maintain the DWH and processes to update, extract and analyse information.