UML

1. Unified Modelling Language
2. Specified by OMG (Object Management Group)
3. How to express what you have in mind about the
   
   1. design of a software system
   2. components of a software system and their behaviour
   3. interactions between the components of a software system
4. An abstract view of what the software system is intended to be
5. Express the results of your analysis and design using
   
   1. structure diagrams (6)
   2. behaviour diagrams (3)
   3. interaction diagrams (4)