A Content Management System (CMS) is a software application or set of related programs that are used to create and manage digital content. CMSes are typically used for Enterprise Content Management (ECM) and Web Content Management (WCM). An ECM facilitates collaboration in the workplace by integrating document management, digital asset management and records retention functionalities, and providing end users with role-based access to the organization’s digital assets. A WCM facilitates collaborative authoring for websites. ECM software often includes a WCM publishing functionality, but ECM webpages typically remain behind the organization’s firewall.

Both enterprise content management and web content management systems have two components: a Content Management Application (CMA) and a Content Delivery Application (CDA). The CMA is a Graphical User Interface (GUI) that allows the user to control the creation, modification and removal of content from a website without needing to know anything about HTML. The CDA component provides the back-end services that support management and delivery of the content once it has been created in the CMA.

  Features of CMSes:-

   Features can vary amongst the various CMS offerings, but the core functions are often considered to be indexing, search and retrieval, format management, revision control and publishing.

    Intuitive indexing, search and retrieval features index all data for easy access through search functions and allow users to search by attributes such as publication dates, keywords or author.

   Format management facilitates turn scanned paper documents and legacy electronic documents into HTML or PDF documents.

    Publishing functionality allows individuals to use a template or a set of templates approved by the organization, as well as wizards and other tools to create or modify content.

    A CMS may also provide tools for one-to-one marketing. One-to-one marketing is the ability of a website to tailor its content and advertising to a user’s specific characteristics using information provided by the user or gathered by the site for instance, a particular user’s page sequence pattern. For example, if the user visited a search engine and searched for digital camera, the advertising banners would feature businesses that sell digital cameras instead of businesses that sell garden products.