Standard Work Instruction

How to use the Standard Work Instruction

A standard work instruction (SWI), also called a work instruction or job breakdown sheet, describes the current best way to do a task.

1. List the major steps in order, written as short commands.
2. For each step, add key points (quality, safety, technique) and the reason for each key point.
3. Add a photo per step, test it with a new operator and revise it until they can follow it without help.

Worked example

Step 3: 'Torque the four flange bolts.' Key point: in a cross pattern to 45 Nm. Reason: even clamping prevents leaks. A photo shows the numbered bolt sequence.

Common mistakes to avoid

• Writing paragraphs instead of short steps.
• Leaving out the reason, so people skip key points.
• Never updating the SWI after an improvement.

Frequently asked questions

What is the difference between standard work and a work instruction?

Standard work is the overall method (takt, sequence and WIP). The work instruction is the document operators use to perform it.

What are key points?

The few details that make or break the step for safety, quality or ease, such as an angle, a torque or a check.

How long should an SWI be?

Usually one or two pages. Split long jobs into several instructions.