InnQuest's popular hotel management software. The software was developed by hoteliers for hoteliers and has been widely praised for its intuitive performance and ease of use. roomMaster provides every software management product a hotel needs in one simple turnkey solution, including a booking engine channel manager

Cassandra is a free and open-source, distributed, wide-column store, NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.