Process mapping guide
How business analysts document and improve processes
A process map is a visual diagram of the steps, decisions, and people involved in completing a business process — the foundation of any improvement or transformation project.
What is process mapping?
A process map is a visual diagram of the steps, decisions, and people involved in completing a business process. BAs use process maps to understand how things work today (As-Is) and design how they should work tomorrow (To-Be).
Why process mapping matters
Most inefficiencies are invisible until you map the process. It is the foundation of any process improvement or digital transformation project.
Process map types
Choose the format that matches the complexity and audience of the process you are documenting.
Basic flowchart
Linear sequence of steps. Best for simple processes.
Swim lane diagram
Multiple lanes showing who does each step (departments, roles, systems). Best for cross-team processes.
BPMN (Business Process Model and Notation)
Standardized notation for complex processes. Required for enterprise-level documentation.
How to create a process map (step by step)
Follow these steps in order. Scoping first prevents the most common mistake: a map that tries to show everything and ends up showing nothing clearly.
Scope it
What is the start event? What is the end event? What is IN scope?
Interview stakeholders
Ask ‘Walk me through exactly what you do, step by step.’ Observe actual work if possible — people often describe the ideal process, not the real one.
First draft
Map what you heard. Show it back to stakeholders for corrections.
Validate
Walk through the map with someone who runs the process. Find the gaps.
Identify waste
Look for loops (repeated steps), handoffs (delays happen here), approvals (often bottlenecks), manual work (automation opportunities).
Common process mapping symbols
These symbols are shared across flowchart and BPMN standards. Learning them lets you read any process map you encounter in a BA role.
Tools
Lucidchart appears most often in BA job descriptions. draw.io and BPMN.io are free and sufficient for building your portfolio.
For your BA portfolio
Map a real process you know from your previous career or a fictional one (e.g., “Customer Onboarding at a fictional SaaS company”). Include both As-Is and To-Be diagrams. This is one of the most valuable portfolio artifacts for BA roles — it demonstrates that you can translate messy reality into clear, structured documentation.
Next steps
Build BA fundamentals in the Business Analyst track
Process mapping is one of several core skills covered in the Business Analyst track. Learn to document requirements, facilitate workshops, and deliver analysis that drives decisions.