The evolution of computer systems and applications has altered quality management challenges and created an environment in which testing is of critical importance. Yesterday's applications, including Siebel and other Customer Relationship Management (CRM) applications, were very much standalone; they had relatively little integration with other systems. While those applications performed valuable functions, growth was capped. In order to evolve to keep pace with business demands, their fundamental structure had to be altered. These applications and systems were also costly, brittle, monolithic, and proprietary.