UML

• When you build something you usually need a plan (unless it is very simple)
• Software is no different: For anything but the most simple application, you need a plan.
• When building a house, you use a blueprint.
• The analogue to a blueprint for software design is a UML diagram.
• UML: Unified Modelling Language
• Language independent
  • i.e., not just for Java
• Uses “Pascal” form: name: type
• Marker for visibility:
  • + for public
  • - for private
  • # for protected