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 Moonstone Hotel Properties has chosen ATRIO PMS as their cloud property management system for their collection of five properties in California and Oregon. Known for their exquisite and extensive garden Inns and beautiful boutique hotels, Moon