Oracle ADF Architecture is based on the Model-View-Controller (MVC) design pattern.MVC consists of three layers which are model layer,view layer,controller layer.Oracle ADF implements MVC and further separates the model layer from the business services to enable service-oriented development of applications.
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The model layer represents the data values related to the current page
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The view layer contains the UI pages used to view or modify that data
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The controller layer processes user input and determines page navigation
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The business service layer handles data access and encapsulates business
logic
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