QDES, the Quick-and-Dirty Editor for STEP, is intended to provide a temporary facility for adding tolerancing and other data to a PDES geometric model. The expectation is that a solid modeler will be used to product a STEP physical file. This file can then be imported into QDES, which provides a window-based structured editing environment to ease the task of adding such objects as tolerances and form features to the model.
QDES User, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.4361
(Accessed December 6, 2023)