Protel Air is a cloud native , fully internationalized, enterprise property management system for hotels and accommodation businesses, from small independents through to global hotel groups. It provides the sophistication to manage even the most demanding hotels, locally or on a global scale.

Apache Kafka is a distributed event store and stream-processing platform. It is an open-source system developed by the Apache Software Foundation written in Java and Scala. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds. Kafka can connect to external systems (for data import/export) via Kafka Connect, and provides the Kafka Streams libraries for stream processing applications.