This presentation will produce an actual, completed, OLAP-ready datamart, with a working BI application. It will address the steps necessary and options in building a Oracle OLAP cubes, including using Oracle Warehouse Builder, Oracle Enterprise Manager, and Analytic Workspace Manager. It will then move into developing simple and complex applications using JDeveloper, and BI Beans. Tips on the development of a commercial BI Application built using JDeveloper and BI Beans will also be presented.