The Q-Tee software complies with the 21CFR11 directive of the American FDA.The 21CFR11 directive from the American Food and Drug Administration (FDA) describes how to handle measured data so that the integrity of the data is ensured. The software detects changes made to the original data files. The software offers a hierarchical structure within which users can handle the measured data with pre-assigned rights. All actions are logged and recorded in the data file.