1. UML: The Unified Modeling Language Excertos do livro: The Unified Modelling Language User Guide by Grady Booch, James Rumbaugh and Ivar Jacobson

2. Statechart diagrams – Statechart diagrams are used to model the dynamic aspects of a system. – Using a statechart, you can model the behavior of an individual object. – A statechart is a behavior that specifies the sequences of states an object goes through during its lifetime in response to events.

3. Statechart: example 1 Requesitado Livre Requesitar Renovar requesição Devolver Danificar