Systems Engineering

Measure the outcome

Decide how you will measure success before you act.

Before making a change, decide what outcome you want, how you will measure it, and what result would count as success. Measure the starting point.

Make the change, then measure again and compare the result with your target. Where practical, try it on a small scale before expanding it.

Making a change is not the same as making an improvement. Verify the outcome.

A simple example

Imagine a service counter where people wait an average of 10 minutes. Before changing the process, set a target: reduce the average wait to 5 minutes or less.

Try the new process at one counter for a week. Measure waiting times during comparable busy periods before and after the change. Check whether the target was met before deciding to expand the change.

Principles

Judge a change by measured outcomes against a baseline, not by intentions or spending.
Use evidence to revise or stop measures that do not produce the intended benefit.

Why this matters

We must set a measurable target and record the starting point before making a change.
Test on a small scale where practical, compare the outcome with the target, and revise or expand based on the results.

Learn more & discuss

Discussion questions

For individual reflection or classroom discussion. These questions are not graded.

What outcome would you measure, and what target would count as success?
How could you try the change on a smaller scale?
What would you compare before and after to verify the result?

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Check your understanding

Before changing a process, what should you establish so you can verify whether it worked?

The desired outcome, its measure, the starting point, and a success target.

Only a date for announcing that the change is complete.

A success measure chosen after seeing the result.

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