Small and medium-size importers tend to have preconceived ideas about quality control. They tend to think product inspections are supposed to be performed at the end of production, but in many cases it is too late.

By Renaud Anjoran in 'The China Sourcing Blog'

The article is about QC inspections. Maybe you let your supplier ship the goods without inspecting. Maybe you use a third-party company to control your products. Maybe you have your own inspectors. Are you taking unnecessary risks? Are you paying too much? The only way to form an opinion about these questions is to be familiar with the basics of quality control.