Unified Modeling Language, UML: joint effort of leading object technologists Grady Booch, Ivar Jacobson, Jim Rumbaugh (the Three Amigos), James Odell, and many more. Merges the best of the object notations used by the three most popular analysis and design methodologies, Booch Method, OOSE, and Object Modeling Technique, to produce one universal modeling language that can be used with any method. Viewed by some experts as one of the biggest advances in object technology in recent years.