We provide maintenance services for large legacy systems. Maintenance services include major and minor modifications, and enhancements as well as production support. Such systems are client/server systems; and are typically essential to a client’s business, though over a period they progressively become difficult and costly for the client’s internal IT to maintain. 9Arts IT professionals take an engineering approach to software maintenance, focusing on the long-term functionality and stability of the client’s overall system, and attempting to avoid problems from Expert solutions.