Differentiate the class representation of Booch, Rumbaugh and UML?

            If you look at the class representaiton of Rumbaugh and UML, It is some what similar and both are very easy to draw.

      Representation:   OMT                                                               UML.

      Diagram:

     

            Booch: In this method classes are represented as "Clouds" which are not very easy to draw as for as the developer's view is concern.