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 Leopard  Technical Q&As:  Tools 
Interface Builder 
Interface Builder is an application for designing and testing user interfaces. Developers can easily create user interfaces that follow the Mac OS X human-interface guidelines by dragging user-interface elements from a palette of predefined controls and dropping them into the windows or views they are designing. Interface Builder works closely with Xcode to provide a development experience that facilitates the concurrent but specialized development of an application's user interface and business logic.  |