QuesTec

QuesTec is a digital media company that pioneered virtual replay from real-time measurement data for baseball and tennis. Years before competitors introduced similar products, QuesTec had established a reputation for accuracy and reliability. Although originally based on internally developed technology, in 1998 QuesTec moved to tracking technology provided by engineers at the Atlantic Aerospace Electronics Corporation (now a division of L-3 Communications). QuesTec is best known for its Umpire Information System (UIS), used by Major League Baseball for the purpose of providing feedback and evaluation of Major League umpires.