Swimlane Diagram Template

What this template is for

A swimlane diagram divides a process flowchart into horizontal or vertical lanes, one per person, team, or system involved. This makes handoffs visible — you can see exactly where one party passes work to another, and where delays are most likely to happen. Swimlane diagrams are especially useful when a process crosses more than two departments, because a standard flowchart cannot show ownership. Use this template whenever you need to answer the question: who does what, and in what order?

When to use this template

• Document a purchase approval process showing what procurement, finance, and the requester each do.
• Map a software release process across development, QA, and operations lanes.
• Diagram a customer onboarding flow showing actions by sales, customer success, and the customer.
• Model a support ticket escalation process with lanes for the customer, L1 support, and engineering.
• Visualize a hiring process showing steps owned by HR, the hiring manager, and the candidate.
• Document a compliance review workflow with lanes for legal, finance, and the business unit.

How to use it

1. 1List every role, team, or system that participates in the process — each one gets its own lane.
2. 2Identify the start event and the end state of the process.
3. 3Map each step in the process to the lane that owns it.
4. 4Draw arrows to show the sequence and add decision diamonds where the path splits.
5. 5Mark handoff points clearly — these are the arrows that cross from one lane to another.
6. 6Review the diagram with someone from each lane to confirm the steps are accurate.

Quick example