Digital Rights Management - Technologies intended to give content providers control over redistribution and access to material. Critics of these technologies use an alternate expansion, 'digital restrictions management'.
Device Relationship Management describes software that connects devices via a network. This enables remote monitoring and management of the devices over the network.
Design Reference Mission , term used by NASA to denote a reference space architecture design, many times specifically referring to the NASA Mars DRM from the late 1990s, a technical plan for a human mission to Mars.