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Timing Diagram
A Timing diagram defines the behavior of different objects within a time-scale. It provides a visual representation of objects changing state and interacting over time. You can use it to:
- Define hardware-driven or embedded software components; for example, those used in a fuel injection system or a microwave controller
- Specify time-driven business processes
You generate Timing diagram elements and connectors from the 'Timing' pages of the Diagram Toolbox.
Example Diagram
Timing Diagram Element Toolbox Icons
Icon |
Description |
See also |
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A State Lifeline element represents the state of an object across a measure of time, using changes in y-axis to represent discrete transitions between states. |
State Lifeline |
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A Value Lifeline element represents the state of an object across a measure of time, using parallel lines indicating a steady state, along the x-axis. |
Value Lifeline |
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A Message Label is an alternative way of denoting Messages between Lifelines, which is useful for 'uncluttering' Timing diagrams strewn with messages. |
Message Label |
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A Message Endpoint element defines the termination of a State or Value Lifeline in a Timing diagram. |
Message Endpoint |
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A Diagram Gate is a simple graphical way to indicate the point at which messages can be transmitted into and out of interaction fragments. |
Diagram Gate |
Timing Diagram Connector Toolbox Icon
Icon |
Description |
See also |
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Messages indicate a flow of information or transition of control between elements. |
Message |