A data warehouse is a valuable corporate asset used to envisage business strategies and make informed business decisions. The enhanced access to information that a data warehouse provides, enable an organization to make the time-critical business decisions that are required to remain competitive. Data warehousing needs a comprehensive assessment of the impact to the entire organization and development of a plan for an organized, systematic solution. As for the Quality Assurance [QA] teams, it creates an exciting new opportunity that comes once in a life time. It is nothing less than a new business paradigm, which creates a new unlimited learning opportunities required to prosper in it. As in any new paradigm, most of us are unprepared for it. That is a bad news. Good news is so is everybody else. The race is on! The most nimble of us will flourish the most. Read on, with this book you will give yourself the head start.