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1. Interaction channel between user and the system

2. Technologies

3. Interaction channel between user and the system

4. Technolgies

   • Standalone (1 client)- JAVA
   • Web (HTML. CSS. JS)
   • Mobile (IOS, Android)

5. Usability

   • intuitive
   • Friendly
   • Clear

6. Containers

   • Frame
     • minimize, close, move maximize
     • JFrame
       • setSize (width, height)
       • setResizable (modify frame size)
       • setDefaultCloseOperation: exit on close
       • setVisible
       • add: GUI component
   • Panels
     • Contain and Divide GUI elements
   • Layouts/ setLayout
     • BorderLayout: Compass role
       • Ex: add(GUI Component, BorderLayout.NORTH);
     • GridLayout: Matrix
       • rows and columns