A quality sector oversees the various steps that are involved in processing and manufacturing materials to make sure that those materials reach a specific level of quality. It is responsible for selecting the best techniques for a given process, determining the level of quality, and taking the appropriate steps to maintain or improve the quality of the process, if necessary.

Many companies focus on bettering the quality of their products during each stage of production, hoping to prevent defects, and thereby save money. A quality sector often works with employees from many different departments in a company to figure out the best ways to manufacture and improve the quality of the items.

Developing, implementing, and directing the processes that result in a specific level of quality for manufactured items are among the responsibilities of a quality control engineer. It must identify standards to measure the quality of a manufactured item, analyze details that can affect the quality of an item, and decide what the best techniques are for the optimal end results. It must set up practices to monitor and control quality; however, other factors must be considered, such as effectiveness, cost, and productivity.