Ms. Ren is a computer scientist in the Dimensional Metrology Group in the Sensor Science Division (SSD) of the Physical Measurement Laboratory (PML) at the National Institute of Standards and Technology (NIST). Her work and interests combine computer technology, dimensional metrology, and measurement assurance and standards. Her profession experience includes developing and improving M48 1D measurements; integrating microscope vision systems on the M48; researching on triangulation probe and CNC non-contact measurement machine; developing software to measure precision length measuring standards and to interface commercial equipment.