Developing Apama Applications > Using Apama Studio > Overview of Developing Apama Applications > Apama projects > Managing project hierarchies
Managing project hierarchies
Apama Studio organizes your project into a hierarchy that is displayed in the Project Explorer view (if you are using the Developer perspective) or the Workbench Project view (if you are using the Workbench perspective). The hierarchy is made up of folders that group Apama resource files by type. The Project Explorer view lists all your Apama projects, while the Workbench Project view lists just the current project. Apama Studio displays a different icon for each type of resource file:
* indicates an Apama project.
* indicates a bundle.
* indicates an EPL (.mon) file.
* indicates a JMon monitor or JMon event (.java) file.
* indicates an EPL plug-in written in Java (.java) file.
* indicates an event (.evt) file.
* indicates a scenario (.sdf) file.
* indicates a scenario block (.bdf) file.
* indicates a scenario function (.fdf) file
* indicates a dashboard (.rtv) file.
*cdp_icon indicates a correlator deployment package (.cdp) file.
If a monitor or scenario file contains an error, Apama Studio displays an error icon over the monitor file name or scenario file name, over the folder that contains the file that has the error, and over the project folder. For example, a scenario file that contains an error would look like this: .
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