Reference

Hotel software glossary

Plain definitions for the acronyms and shorthand hotel-tech vendors use. Written for working hoteliers, not industry analysts.


ADR

Average daily rate

Total room revenue divided by total rooms sold. The average price each occupied room actually fetched.
Booking engine

Booking engine

The software on a hotel's own website that lets guests check availability and book directly, bypassing OTAs.
Channel manager

Channel manager

Software that synchronises room availability and rates between a hotel's PMS and the OTAs (Booking.com, Expedia, etc.).
CRS

Central reservation system

A reservation database used by hotel groups to manage availability and bookings across multiple properties.
Data residency

Data residency

Where guest data is physically stored, and under which jurisdiction's laws.
DPA

Data processing agreement

A contract between a hotel (data controller) and a software vendor (data processor) defining how guest data may be processed under GDPR.
GDPR

General Data Protection Regulation

The European Union's data protection law, which governs how hotels and their software vendors process guest personal data.
OTA

Online travel agency

Third-party booking platforms like Booking.com, Expedia, and Airbnb that resell hotel rooms in exchange for a commission.
PCI DSS

Payment Card Industry Data Security Standard

The security standard that governs how hotels and vendors handle credit card data.
PMS

Property management system

The central software a hotel uses to manage reservations, room inventory, guest profiles, rates, and billing.
RevPAR

Revenue per available room

Total room revenue divided by total available rooms over a period. The headline performance metric in hotel revenue management.
RMS

Revenue management system

Software that recommends room rates based on demand, competitor pricing, and historical booking patterns.
Sub-processor

Sub-processor

A third party engaged by a software vendor to process guest data on behalf of the hotel.