South East Training - Business Process Modelling Toolkit
The Business Process Modelling Toolkit is owned by South East Training.
You may use this resource for free on the condition that you include this statement on each page.
Pools, Lanes and Sub-Processes
Lanes and Pools
- BPMN lets us identify who performs each activity by use of lanes. Lanes typically represent roles or organisational units such as departments.
- Lanes appear as subdivisions of pools. Pools typically represent processes. However, in some cases, they represent organisations.
- Labelling of lanes and pools is different. Pool labels appear in a box. Lane labels do not.
- It is also possible to distinguish between different types of activities by different labelling:
- An activity with a human figure in the top left hand corner indicates this is performed by a person (a user task)
- An activity with a cog in the top left hand corner is an automated task performed by a system (a service task)
- Some people put automated or system related activities in separate lanes.
- An activity with a small cross in the middle of the bottom edge is a collapsed sub-process consisting of a flow of activities having a start event and one or more end events.