1. Xcode editor
   1. provides
      1. graphical interface
   2. purpose
      1. UI
         1. creation
   3. integrated
      1. fully
      2. into
         1. XCode
         2. workspace window
2. editor area
   1. Interface Builder
   2. elements
      1. canvas
         1. UI design
      2. dock
         1. elements
            1. placeholders
            2. refer objects
            3. outside nib
            4. nib tied
            5. IB objects
            6. created
            7. nib loaded
         2. presentation
            1. icon view
            2. outline view
            3. objects
            4. hierarchy
3. utility area
   1. inspectors
      1. interface objects
         1. configuration
         2. connections
            1. between
   2. libraries
      1. objects
      2. media