CMMS is an acronym for Computerized Maintenance Management System. This is a term used to describe the software tools used by maintenance management departments. CMMS software is a type of software application or genre if you like. An alternate spelling is Computerised Maintenance Management System and an alternate term is EAM which is an acronym for Enterprise Asset Management. It follows then that Cloud CMMS is a computerized maintenance management system that is available from the cloud as an internet hosted, web based CMMS or online CMMS software.