six sigma

Here is a mistake many small business owners make without noticing. A woman baking cakes in Lekki loses money every month because one in every ten cakes comes out wrong, too dry, wrong size, wrong icing, and she just remakes it calmly and eats the cost, never once asking why it keeps happening.

She blames bad luck or a bad day. She never sits down to ask which step in her process keeps failing, so the same mistake repeats itself for years, silently eating her profit one cake at a time.

Six Sigma is the opposite habit. It began at Motorola in the United States in the 1980s, when engineers got tired of guessing why products failed and decided to measure everything instead. The name comes from statistics, sigma being a measure of how far results spread from perfect, and six sigma meaning your process is so tight that only about three defects slip through in a million tries.

In practice it means you break a process into small steps, measure each one, find exactly where things go wrong, fix that one spot, then measure again to prove the fix worked. No vibes, no blaming staff, just numbers telling you the truth.

A Nigerian bank using Six Sigma thinking might notice that thirty percent of loan applications get delayed at the same verification step, fix that one bottleneck, and suddenly approvals move twice as fast without hiring a single new person.

A UK manufacturer supplying supermarkets uses the same idea to make sure that out of a million packets of biscuits, almost none leave the factory broken or underweight, because a big retailer will drop a supplier who cannot guarantee that kind of consistency.