An SOP nobody follows is just paperwork. Here's how to write one people actually use.
SOP stands for standard operating procedure. It's the written, step-by-step way a job gets done, so everyone does it the same way, every time.
Why bother writing it down?
Because people forget steps. Even experts do.
In one well-known study, eight hospitals in eight cities started using a short safety checklist before surgery. Deaths after surgery dropped from 1.5% to 0.8%. Complications dropped from 11% to 7%.[1] These were trained surgeons, and a simple written list still made a difference.
In another study, more than 100 intensive care units, most of them in Michigan, made sure every doctor followed five proven steps when putting in a central IV line. Within three months, the typical unit's infection rate dropped to zero. After 18 months, infections were down by as much as 66%.[2]
Your SOP probably isn't life or death. But the idea is the same: a clear list beats memory.
Here are 9 steps to an SOP people actually follow.
1. Start with the problem
Write one sentence at the top that says why this SOP exists. For example: "So every order ships with the right paperwork." If you can't say why, people won't care how.
2. Write it with the person who does the job
Not the person who manages the job. The person who does it every day knows the shortcuts, the problems, and the step everyone forgets. Sit with them and write it together.
3. One action per step. Start with a verb.
If a step has the word "and" in it, it's probably two steps.
4. Keep it short
If it runs past about 10 steps, break it into sections, such as "Set up," "Do the job," and "Clean up." Short chunks are easier to follow and easier to learn.[4]
5. Add a picture where words fail
"Turn the valve" means nothing if there are three valves. A photo with an arrow fixes that. People learn more from words and pictures together than from words alone.[4]
6. Put warnings before the step, not after
Nobody reads "Caution: this will burn you" after they've already touched it. Mark the dangerous steps clearly, and put the warning first.
7. Flag the steps people forget
Some steps get skipped far more than others. Safety researcher James Reason found the usual suspects:[3]
- Steps after the main job feels done. Think of leaving the original on the copier glass. You got your copies, so your brain says you're finished.
- Steps that don't follow from the one before. Nothing reminds you to do them.
- The second of two similar steps. People do the first one and skip the repeat.
- Steps right after an interruption. The phone rings, and the step is gone.
Find these steps in your SOP and make them stand out. Use bold text, a checkbox, or a reminder posted right where the work happens.
8. Test it on someone new
Hand it to someone who has never done the job. Watch them follow it. Don't help. Every place they stop or ask a question is a step you need to rewrite.
9. Put a date and an owner on it
Processes change. At the top, list who owns the SOP and when it was last checked. An old SOP that's wrong is worse than none.
An SOP on a shelf isn't training
Writing the SOP is half the job. People still have to learn it. Turn it into a short course with a few knowledge checks along the way, so they actually remember it.
The research behind this
- Haynes, A., et al. (2009). A surgical safety checklist to reduce morbidity and mortality in a global population. New England Journal of Medicine, 360(5).
- Pronovost, P., et al. (2006). An intervention to decrease catheter-related bloodstream infections in the ICU. New England Journal of Medicine, 355(26).
- Reason, J. (2002). Combating omission errors through task analysis and good reminders. Quality and Safety in Health Care, 11(1).
- Mayer, R. (2009). Multimedia Learning (2nd ed.). Cambridge University Press.