The Booch method is a technique used in software engineering. It is an object modeling language and methodology that was widely used in object-oriented analysis and design. It was developed by Grady Booch, while at Rational Software (now part of IBM).
The notation aspect of the Booch method has now been superseded by the Unified Modeling Language (UML), which features graphical elements from the Booch method along with elements from the object-modeling technique (OMT) and object-oriented software engineering (OOSE).
Methodological aspects of the Booch method have been incorporated into several methodologies and processes, the primary such methodology being the Rational Unified Process (RUP).