NEW HARTFORD, N.Y.--(BUSINESS WIRE)--PAR Springer-Miller Systems, Inc. (PSMS) — a wholly owned subsidiary of PAR Technology Corporation (NYSE:PAR) and the leading provider of next generation cloud based hospitality management systems, today announces that Grayshott has chosen ATRIO PMS as their cloud property management system for their Hotel and Health Spa in Surrey, United Kingdom. For 50 years Grayshott has provided a retreat for those looking to de-stress, get fit, recuperate or simply esca