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Terminology 
Reading and understanding this chapter is a prerequisite for working through the subsequent sections of this manual. The terminology provides a good introduction to the concepts of Web Dynpro as well as an overview of the individual Web Dynpro application entities and their interaction.
The terminology chapters therefore help you to familiarize yourself with the Web Dynpro programming model. For example, you can use the Model View Controller (MVC) concept to divide a Web Dynpro application into the three levels data retrieval, user interface, and data flow. The implementation parts of a Web Dynpro application can thus be assigned to the Web Dynpro application entities Web Dynpro Model, View, and Controller. These three entities are the central parts of a Web Dynpro application, which you define and program accordingly. Within the terminology chapter, the terms are organized according to their logical relationships, in the same way as they are displayed in the Web Dynpro Explorer.
A second approach is to consider a Web Dynpro application at file system level. All Web Dynpro units consist of one or more Java classes and/or XML files, which are created automatically by the Web Dynpro Generator. Information about the individual files of an application entity is available in the section concerning the creation of the relevant Web Dynpro entities. Information about working with the Web Dynpro entities – for example, on Creating a Project or how to edit one – is available in the Procedures chapter. The information is also available with reference to the individual tools under Web Dynpro Tools. This introduction to the procedural methods of working with the Web Dynpro entities is a preliminary stage to completing the Web Dynpro tutorials, which are also part of the Web Dynpro documentation.
