Content management, or CM, is the set of processes and technologies that support the collection, managing, and publishing of information in any form or medium. When stored and accessed via computers, this information has come to be referred to, simply, as content or, to be precise, digital content. Digital content may take the form of text, multimedia files (such as audio or video files), or any other file type that follows a content lifecycle requiring management.

The term ‘content management’ became popular when ‘web content management’ systems emerged to differentiate them from ‘document management’ systems which were associated with paper documents. ‘Content management’ then quickly evolved to cover all kinds of unstructured or semi-structured content. Common types of content management systems (CMS) include enterprise content management (ECM), digital asset management (DAM), multichannel content management (MCM), and web content management (WCM). The latter are now widely marketed as Digital Experience Management’ (DEM or DXM, DXP), and ‘Customer Experience Management’ (CEM or CXM) systems or platforms, and may include additional marketing technology functions. 

For some background see What is Content Management?