The FME Desktop product is for data translations and transformations at the desktop level (as opposed to FME Server, which is an enterprise-level, web-based product).
FME Desktop consists of a number of different tools and applications.
FME Desktop Applications
The two key applications within FME Desktop are FME Workbench and the FME Data Inspector.
FME Workbench is the primary tool for defining data translations and data transformations. It has an intuitive point-and-click graphic interface to enable translations to be graphically described as a flow of data.
FME Data Inspector
The FME Data Inspector is a tool for viewing data in any of the FME supported formats. It is used primarily for previewing data before translation or reviewing it after translation.
Besides Workbench and the Data Inspector, there are several other FME utilities.
A tool for browsing through the various help documents for FME.
FME Quick Translator
A precursor to FME Workbench that is used only for quick translations requiring no data transformation.
FME Integration Console
A tool for applying FME functionality to other GIS and CAD applications; commonly enabling use of datasets not normally supported by those applications.
FME Licensing Assistant
An application for managing FME licensing.
Other FME Desktop Components
Additional components are also included as part of FME Desktop (Professional Edition or higher).
FME Command Line Engine
The FME Command Line Engine enables translations to be initiated at the command line level.
FME Plug-In SDK
The FME Plug-In SDK allows developers to add formats and functionality to the FME core.