The Simplified Modeling environment contains Execution Modeler which will assist you to quickly develop Web Dynpro applications. After creating a Web Dynpro application using this approach, you might need to write a few lines of code to enhance your Web Dynpro application.
The default modeling environment available within Web Dynpro is known as Web Dynpro Classic. You need to switch from Web Dynpro Classic to the Simplified Modeling environment to use Execution Modeler.
You have opened the Web Dynpro Perspective in the SAP NetWeaver Developer Studio.
From the Web Dynpro toolbar, choose (Web Dynpro Classic icon). The Simplified Modeling environment is enabled.
The Simplified Modeling environment is enabled and provides the Execution Modeler to easily model Web Dynpro applications.