The Computer Reservation System Harmonization Working Group (CRSHWG) focuses on standardization of current and future reservation systems tools, procedures and functions between CRSs, e.g.

• exchange information relating to the development of standards for current and future reservations tools and procedures. "Standardization" is sought among the various methods employed by each system to do the same function.
• review system activities between airlines and CRS suppliers, including government regulations, as they impact industry reservations systems' communication standards and technical procedures.
• report any conclusions and recommendations it develops through the IATA Reservations Committee to the IATA Passenger Services Conference.