What is controller usage in SAP BC-WD - Web Dynpro?

SAP Term: controller usage

• Component: BC-WD

• Component Name: Web Dynpro

• Description: Assignment of a controller to the current component. You define a controller usage at design time. The controller is then valid at runtime.

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• Key Concepts: 
  Controller usage is a concept in SAP's BC-WD Web Dynpro component. It is a way of organizing the logic of an application into different parts, or “usages”. Each usage is responsible for a specific task, such as data retrieval, user input validation, or navigation. This allows for better organization and easier maintenance of the application.
  
  How to use it: 
  To use controller usage in BC-WD Web Dynpro, you must first create a controller usage in the Component Controller. This can be done by right-clicking on the Component Controller and selecting “Create Usage”. You can then assign methods to the usage and define how they should be used. Finally, you must bind the usage to the view so that it can be used in the application.
  
  Tips & Tricks: 
  When creating controller usages, it is important to give them meaningful names that accurately describe their purpose. This will make it easier to understand and maintain the application in the future. Additionally, try to keep usages as small and focused as possible to make them easier to debug and maintain.
  
  Related Information: 
  For more information on controller usage in BC-WD Web Dynpro, please refer to SAP's official documentation at https://help.sap.com/viewer/product/BC_WD_WEB_DYNPRO/731/en-US.