In case of delays, this swimlane process map will help us identify the department which caused the delay in the process. in Summary, adding swim lanes to your flowcharts is a great practice as it identifies the parties responsible for a task in the process flow.
A swim lane process map, by comparison, creates a visual structure to both process workflow and the people, places, and things that interact with them. What used to be hidden in obscure procedures is revealed more comprehensively in a swim lane process mapping session.
A Swimlane was first introduced to computer-based Process Modeling by iGrafx in 1993. It may also be referred to as a functional band (as it is in Microsoft Visio 2007) and is used in the same way, to create a cross functional flowchart to map a process within the functional units of a business.
Process Map with Swimlanes