Concurrent Control
Concurrent control takes place while an activity is in progress. It involves the regulation of ongoing activities that are part of transformation process to ensure that they conform to organizational standards. Concurrent control is designed to ensure that employee work activities produce the correct results.
Since concurrent control involves regulating ongoing tasks, it requires a through understanding of the specific tasks involved and their relationship to the desired and product.
Concurrent control sometimes is called screening or yes-no control, because it often involves checkpoints at which determinations are made about whether to continue progress, take corrective action, or stop work altogether on products or services.