Oracle Application Development Framework (Oracle ADF) is an end-to-end application framework that builds on Java EE standards and open-source technologies to simplify and accelerate implementing enterprise applications. Oracle ADF is suitable for enterprise developers who want to create applications that search, display, create, modify, and validate data using web, mobile, and desktop interfaces.
You can use the whole Oracle ADF framework to create an application, or you can use parts of the framework in combination with other technologies. Throughout this guide, applications that contain any ADF technologies are generally referred to as ADF applications. Web applications that incorporate ADF technologies throughout the business service, model, controller, and view layers are referred to as Fusion web applications.
Oracle Corporation has marketed parts of Oracle ADF since 1999 — specifically ADF Business Components — then known as "JBO" and later as "BC4J" ("Business Components for Java"). The current ADF architecture with the generic model/binding layer was introduced with JDeveloper 9.0.
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It increases quality and reduces development time due to re-use of previous work, real mapping to the problem domain and modular architecture