As noted, Oracle’s CEO mentioned that the transition to cloud software by the vendor won’t happen overnight. As the market leader, the database company must transition it’s application systems in which big companies and other enterprises pay upfront for one-year or longer licenses to use the proprietary software designed by Oracle, which customers maintain in their own data centers on and servers. In the cloud software-as-a-service (SaaS) model, Oracle users users pay monthly for what they need, and the vendor often maintains the software on its data centers, relaying software to customers via the Internet via the cloud.