A Timer Start Event allows you to start a BPMN model after a defined cycle or at a defined time. Every time the timer is triggered, the model will be started.
A start event can only be created via the elements toolbar.
Another particularity of the Timer Start Event is the attribute Timer which is available in the Attributes Panel:
To define the timer settings, click the icon and an editor will open. For detailed explanations see How to Use the Scheduler/Timer.
|Execution||On Event: Without input or output parameters.|
Editing and Styling
How to Use the Scheduler/Timer
Use the scheduler if you want to define a pattern for your Timer Start Event, for example to start the model every monday, every hour etc.
Select the timer if you want to define a cycle for example to start the model after one week, after two hours etc.
Duration Expression Wizard
The settings Repeat Interval and First Occurrence contain the icon .
Click the icon to open a wizard that supports you to define the necessary duration expression.
Insert positive integers in the desired fields.
The result is shown below.
Click Save to close the wizard.
The duration expression is displayed in the corresponding field.
Once you are familiar with the notation of the duration expression, you can also insert it directly in the field.