Oracle Fusion Applications were widely used for enterprise resource planning (ERP) and other business functions.

Oracle Fusion Applications combine functionalities from various Oracle products, and the technical training for Fusion Applications generally covers the following areas:

1. Oracle Fusion Architecture: Understanding the overall architecture of Oracle Fusion Applications, including its components and how they interact.

2. Oracle Fusion Middleware (FMW): Learning about the middleware technologies that form the backbone of Oracle Fusion Applications. This might include components like Oracle SOA Suite, Oracle WebLogic Server, Oracle Identity and Access Management, etc.

3. Oracle Fusion Development: This area covers the development tools and technologies specific to Oracle Fusion Applications. This might include technologies like Oracle Application Development Framework (ADF) and Oracle Fusion Middleware technologies for extending and customizing the applications.

4. Oracle Fusion Integration: Understanding how to integrate Oracle Fusion Applications with other systems and applications, as integration is a crucial aspect of modern enterprise systems.

5. Oracle Fusion Data Migration and Conversion: Learning how to migrate and convert data from legacy systems into Oracle Fusion Applications.

6. Oracle Fusion Security: Understanding the security model of Oracle Fusion Applications and how to configure and manage security.