Certified Developer

Application Design
List and describe components of an application
List of tabs associated w/App, Default Landing Tab/Page, and Profiles Assigned to App.
Describe the model-view-controller design paradigm
The model, or data structure, can be defined as either sObjects (the entity definitions for persisted data) or classes in Apex.
The view, or presentation layer, is comprised of Pages and components as described above.
The controller, or logic layer, includes any custom controller logic written in Apex, or standard behavior generated by the platform for each business entity.

The following figure shows the MVC layers in action with Visualforce:
Given a scenario, determine whether sufficient information is available to plan/build/design an application

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