booking engine

Is a software application that powers the search, selection, and purchase of travel services, turning traveler intent into confirmed reservations in real time. Embedded in websites, mobile apps, and agent portals, it connects front-end user interfaces with back-end inventory systems, global distribution systems (GDSs), and supplier databases. Within the ecosystem of Travel Operations & Distribution,…

system integration

Is the behind-the-scenes connective tissue that allows different travel technologies, platforms, and providers to communicate seamlessly so that a journey can be searched, priced, booked, ticketed, and managed in real time. In the travel operations and distribution landscape, it refers to the technical and procedural process of linking systems such as global distribution systems (GDSs),…

online booking

Refers to the digital process through which travelers search, select, and confirm travel services—such as flights, hotels, car rentals, tours, and activities—via websites, mobile apps, or integrated reservation platforms. Within the field of travel operations and distribution, it is the consumer-facing surface of a complex ecosystem of global distribution systems (GDS), channel managers, payment gateways,…

lead time

Refers to the length of time between when a booking is made and the date the travel service is actually consumed, such as a hotel stay, tour departure, or flight. In tourism operations, this interval is a critical planning variable that influences pricing, inventory control, staffing, and marketing strategy. Shorter intervals often indicate last-minute or…

dynamic pricing

In revenue management and travel distribution, this strategy refers to the practice of continually adjusting prices for flights, hotel rooms, tours, or ancillary services based on real-time and forecasted demand, market conditions, booking patterns, and competitive behavior. Rather than setting a fixed rate, travel suppliers use algorithms, historical data, and predictive models to increase or…

PNR

Is a digital record that gathers all essential details of a traveler’s booking into a single, structured file within an airline or travel provider’s reservation system. In the tourism ecosystem, it functions as the core reference for an individual journey or a linked set of journeys, typically containing the traveler’s personal information, itinerary segments (such…

CRS

Is a computerized platform used by travel companies to store, manage, and distribute travel inventory—such as flights, hotel rooms, car rentals, and packages—in real time. Within the architecture of Travel Operations & Distribution, it functions as a central hub where availability, rates, and booking rules are maintained and synchronized across multiple sales channels. Originally rooted…

GDS

is a centralized digital platform that connects travel suppliers—such as airlines, hotels, car rental companies, and rail operators—with travel sellers, including travel agencies, online travel agencies (OTAs), and corporate travel managers. Within the architecture of modern tourism, it functions as a powerful distribution backbone, aggregating live inventory, schedules, availability, and prices, and making them accessible…

travel agency

Acts as an intermediary between travelers and travel suppliers, providing advice, planning, and booking services for trips that range from simple point-to-point journeys to complex, multi-stop itineraries. Within the operations and distribution landscape of tourism, this entity connects demand (travelers and corporate clients) with supply (airlines, hotels, cruise lines, tour operators, rail companies, car rentals,…