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--- wiki:features [2012/10/22 19:58] – pmueller
+++ wiki:features [2012/12/18 10:42] – pmueller
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 ===== Supported State Chart Elements =====
 **Hierarchical state definition**: State machines can be hierarchical or flat. A state with sub-states is called a hierarchical state-machine. States can have entry code that is always executed if a state is entered. Exit code is executed whenever the state is left. A state can also have action code. The action code is executed whenever the state is active just before event transitions are evaluated.
+** Regions **: Regions allow to model parallel behavior within the same state machine diagram. The benefit of using regions is to explicitly show the this parallel behavior instead of creating different state diagrams.
 **Transitions**: There are two types of transitions a) event based ones and b) conditional ones. Event based transitions are triggers coming from the outside of a state-machine. An event based transition has the following syntax: