Everybody knows that before we begin Object Oriented Programming we need to do an Object Oriented Design. Well, not everybody [:))'> ! Some people try to do Object Oriented Programming without Object Oriented Design. Of course, then Object Oriented Programming they think they are doing is not actually OOP. Disaster usually follows without knowing what is wrong [:(('> . UML is a tool to help team lead, Manager, developers, and BA to come together, to visualize exactly what they want (what client wants) using Object Oriented Design. Especially for developers, they are 'lazy', they don't want to write documentations [:D'> . The latest version of UML is 2.0. Go try it, tiggers!