Process mapping with AI? Yes — and it actually makes sense

Where does AI come in?
Language models like Claude or ChatGPT understand Mermaid syntax and can generate it from natural language. That might sound overly technical, but in practice it means this: you describe a process the way you would explain it to a colleague, and the AI returns ready-to-render code that immediately draws the diagram. It works automatically around 90 % of the time — the rest needs manual tweaking. But even so, it is significantly faster than drawing from scratch.

How can you use this in practice?

1. You have a 10-page manual or work instructions for a process

It exists only as a Word file or PDF — no map in Visio or any other process-mapping tool. You paste the document into an AI tool (ChatGPT, or in my case, Claude AI) with the instruction “generate a process map,” and within a minute, you have a clear diagram. The only catch is that editing directly in the AI tool is not straightforward (though you can use commands described below). But you do get the code, which you copy and paste into the Mermaid application. There, you can freely edit and export to other tools (I currently use MIRO a lot, which has built-in support for inserting these code-based objects).
Sounds complex? Maybe — but it takes 5 minutes.

2. Live mapping during a workshop

Stakeholders spend half an hour explaining how their approval process works — who approves what, where exceptions arise, and what happens when someone is absent. Instead of taking notes and drawing the diagram back at the office that evening, you open an AI tool such as Claude, describe it in a few sentences, and the diagram appears on screen while the workshop is still running. The client sees the output immediately, corrects you on the spot, and you leave with a validated deliverable. I still prefer to paste it into Mermaid and refine it there, but technically it can be done entirely inside the AI.

3. You are designing a new process and need to show variants quickly

With a traditional tool, every change means redrawing by hand. With Mermaid, you change one line of text — add a decision node, rename a step, redirect an arrow — and the diagram redraws itself. Variant A and Variant B are done in ten minutes, not an hour. On top of that, Mermaid has its own AI module, and you get tokens you can use for automation. One particularly useful command is “simplify the whole map,” and instantly the diagram is redrawn at a higher level of abstraction.

All use cases are covered in our training Lean Six Sigma Tools with AI Support and Digital and AI Tools in Practice.

Mermaid is not a replacement for full-featured BPMN tools when working with complex enterprise models. But for everyday analytical work — quick documentation, sharing processes with your team, or iterating with a client — it is one of the most practical tools available in combination with AI right now.