MDM:Mobile Device Management: (Gartner's Definition)
Software Distribution — The ability to manage and support mobile application including deploy, install, update, delete or block.Policy Management — Development, control and operations of enterprise mobile policy.Inventory Management — Beyond basic inventory management, this includes provisioning and support.Security Management — The enforcement of standard device security, authentication and encryption.Service Management — Rating of telecom services.
MAM:Mobile Application Management: (Wikipedia'sDefinition)
App deliveryApp securityApp updatingUser authenticationUser authorizationVersion checkingPush servicesReporting and trackingMCM:Mobile content management(Wikipedia'sDefinition)Multi-channel content deliveryContent access controlSpecialized templating systemLocation-based content delivery