Oracle Database: Manages all of your information, such as Word documents, Excel spreadsheets, XML, and images. Oracle tools such as Forms can automatically reuse the database structure and its integrity constraints, which reduces the amount of manual coding.
Oracle Application Server: Runs all of your applications, including Java, wireless, portals, and business intelligence. Using Oracle Application Server, you can deploy and manage in a single application server all applications developed with Oracle Developer Suite. The Oracle Application Server contains Oracle Forms Services, which you use to deploy your Forms applications.
Oracle Developer Suite: Leverages the infrastructure offered by Oracle Application Server and Oracle Database, enabling developers to quickly and easily build scalable, secure, and reliable e-business applications. The suite provides a complete and highly productive development environment for building applications. Oracle Forms Developer, which you use to build Forms applications, is part of Oracle Developer Suite.