The drivers and benefits of using open source in the enterprise have been widely documented. Ultimately, enterprise users adopt open source for two primary reasons: cost and vendor independence. These are the same drivers and benefits that apply to well-known categories such as operating systems, application servers and web browsers. However, because the database plays a role in all enterprise IT applications, the scrutiny and rigor that enterprises apply to the selection, implementation and deployment of open source databases is far more intense and deliberate.