History Pseudostate
A History Pseudostate in a State Machine Diagram is a special element that allows a Superstate (Composite State) to remember its most recently active immediate substate. When the Superstate is re-entered through the History Pseudostate, it resumes in the last active substate rather than starting from its initial state.
With History Pseudostates in Modeldraw's State Machine Diagram, you can:
Model systems that need to remember their last active state within a Superstate
Implement "resume" functionality in your state machines
Simplify the representation of state re-entry logic
Enhance the usability of systems by maintaining context across interruptions
Create more flexible and responsive state machines
Understanding History Pseudostate
A History Pseudostate in Modeldraw's State Machine Diagram tool is represented by a circle containing an 'H'. Key points to understand about History Pseudostates in Modeldraw include:
It remembers only the last active immediate substate within a Superstate.
It should have at least one outgoing transition to a default state, used when the history is blank.
It's placed inside the Superstate whose history it's tracking.
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