Date Added: Jul 2012
In current trend, every software development, enhancement, or maintenance project includes some quality assurance activities. Quality assurance attempts defects prevention by concentrating on the process of producing the rather than working on the defect detection after the product is built. Regression testing means rerunning test cases from existing test suites to build confidence that software changes have no unintended side-effects. Data warehouse obtains the data from a number of operational data source systems which can be relational tables or ERP package, etc.