Security is critically important for government computing systems, so when the experts at Lockheed Martin are tasked with configuring one, they use Red Hat Enterprise Linux cross-domain system (CDS) configurations for multi-level security (MLS). Because users at different security levels share the system, Lockheed Martin needed to deploy a resource scheduler capable of operating in an MLS Red Hat Enterprise Linux environment. They selected Altair® PBS Professional® thanks to its "rich set of queuing, managing, and reporting capabilities and the company’s willingness to innovate with us."