Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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Chapter 2. UML Short Guide

Table of Contents

What are state machines?
State machine, state, transition, event
Submachines, orthogonal regions, pseudostates
Completion transitions / anonymous transitions
Internal transitions
Conflicting transitions
State machine glossary

What are state machines?

State machines are the description of a thing's lifeline. They describe the different stages of the lifeline, the events influencing it, and what it does when a particular event is detected at a particular stage. They offer the complete specification of the dynamic behavior of the thing.