This book shows all the practical details involved in planning, designing, developing, deploying, and growing data warehouses. Important topics include: the Business Dimensional Lifecycle approach to project planning and management of data warehouses; techniques for gathering requirements more effectively and efficiently; advanced dimmensional modeling techniques; the Data Warehouse Bus Architecture and other approaches for integrating data marts into super-flexible data warehouses; a framework for creating technical architecture; techniques for minimising the risks involved in data staging; aggregations and other effective ways to boost data warehouse performance; cutting-edge, Internet-based data warehouse security techniques.