Your ADF application is going to consist of lots of files and development artifacts collected into JDeveloper application workspaces that contain projects. Confusingly, JDeveloper sometimes just calls them "applications", but that's really a misnomer—only a fairly simple application will be contained entirely within one workspace.
To avoid this confusion, the following sections will refer to application workspaces as just workspaces. Each application workspace can contain multiple projects. Depending on the ADF architecture you choose, you'll have various numbers of workspaces.
Within an application workspace, you can have one or more projects. If you are using a modular or enterprise ADF architecture, you will have a number of subsystem workspaces that will each contain at least the following two projects:
Model project
View/controller project
When you create a new application workspace of the type Fusion Web Application, JDeveloper will...