For hotels, this system was built by the PMS provider. Legacy systems tried to do it all, attempting to cover everything from reservations and inventory to loyalty programs to business intelligence tools and more. While rich in functionality, these systems pose a variety of problems – they aren’t nimble, they don’t connect well to other systems, they are expensive, and many hoteliers don’t need (or like) all the features offered.

In the last few years, a new architecture has emerged, which has been embraced by major brands like Netflix, Amazon, Google, and Hulu. It is a microservices approach. This approach is API-driven and allows different pieces of the product or platform to work independently of each other while communicating through APIs. The latest generation of hotel technology takes a similar approach, using many lean systems that connect seamlessly.