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Template

SIPOC Diagram

Scope a process on one page.

When to use it

Use it at the start of an improvement project to agree the scope. List suppliers, inputs, process steps, outputs and customers, and it builds the SIPOC table to copy into Excel.

What you enter

  • Suppliers
  • Inputs
  • Process steps (high level, 4 to 7)
  • Outputs
  • Customers

What you get

  • SIPOC

How it works

Start with the process steps, then work outward: outputs, customers, inputs, suppliers. Keep the process to four to seven steps and agree where it starts and ends.

How to use the SIPOC Diagram

A SIPOC gives a one-page, high-level view of a process before detailed mapping, so everyone agrees on its scope.

  1. Name the process and its start and end points.
  2. Write 4 to 7 high-level process steps.
  3. List the outputs and customers, then the inputs and suppliers each step needs.

Worked example

For 'Quote to order': suppliers are the customer and engineering; inputs are the RFQ and drawings; the steps are review, cost, approve, send and follow up; the output is a signed quote; and the customers are the client and planning.

Common mistakes to avoid

Frequently asked questions

What does SIPOC stand for?

Suppliers, Inputs, Process, Outputs and Customers.

When is a SIPOC used?

At the start of an improvement or Six Sigma project, to define scope and stakeholders.

Should I fill a SIPOC from left to right?

Many teams start with the Process, then Outputs and Customers, then Inputs and Suppliers.

Create your free accountUse the SIPOC Diagram online and download the Excel and print-ready PDF versions. Free, no credit card.

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