State Machine Architecture
UML State Machine Diagram Maker
Model stateful entity lifecycles, events, transitions, actions on entry/exit, and guarded states.
Model Stateful Systems
Design states, transitions, entry actions, and terminal endpoints in the editor.
What is a State Machine Diagram?
A UML state diagram models the dynamic behavior of an individual object over its lifetime in response to external stimuli, transitions, and internal states (e.g., Order Created → Paid → Shipped → Delivered).
State Internal Activities
- entry / behavior: Executed immediately upon entering the state.
- do / behavior: Ongoing task executed while remaining in the state.
- exit / behavior: Executed right before transitioning out.