Use pools to visually represent processes and participants related to your organization, and the message flow among them.

A primary pool is a container of a complete process. It essentially contains at least one Start node and one End node.

In addition to a primary pool, the other available BPMN standard pools are:

• White Box Pool: Depicts interactions among participants using collaboration nodes.

  See Add a Collaboration activity.

• Black Box Pool: An empty pool used only to visually represent participants related to the process.

You can include both white box and black box pools in a process, and link them using message flows.

See Link pools using a message flow.

Each map appears in a pool by default. You can add lanes to it.

A lane is a visual representation of an area in a process. A pool can have multiple lanes; you can place all related activities within different lanes to logically view and understand the process roles and sequence.

The following map displays the different lanes for Credit Check Company and Loan Advisor roles in the Loan Request pool.

See Add pools and lanes.