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Controllers are the active parts of a Web Dynpro component. In the design of Web Dynpro controllers, SAP has made a significant modification to the original Model View Controller (MVC) concept of a controller. In broad terms, SAP has defined two categories of Web Dynpro controller:

  • Controllers Having No Visual Interface

    They refer to those parts of the business application that process data (data generators)

  • Controllers Having A Visual Interface

    They refer to those parts of the business application that display data (data consumers)

    Note Note

    All controllers lacking a visual interface are primarily responsible for generating data. These data will ultimately be supplied for display to a controller having a visual interface.

    End of the note.

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