ALTIBASE is an enterprise grade, high performance and relational DBMS. ALTIBASE is an open source DBMS. Altibase can lower your TCO with its flexible and competitive subscription fees. ALTIBASE is the only Hybrid DBMS in the industry available on AWS that combines an In-Memory Database with an On-Disk Database, with a single uniform interface, enabling real-time access to large volumes of data, while simplifying and revolutionizing data processing. Unlike other database management systems in the market, ALTIBASE on AWS enables users to leverage high-speed in-memory database capabilities with the large-capacity processing of an on-disk database through one unified engine. The net result is extreme performance with lower HW and SW cost with simple and low cost maintenance support as compared to operating two separate database management systems.