1. Content Management Systems
an introduction.

2. Content Management System
A content management system is a computer application that allows publishing, editing and modifying content, organizing, deleting as well as maintenance from a central interface.
CMSs have been available since the late 1990s.
CMSs are often used to run websites containing blogs, news, and shopping.
Typically aim to avoid the need for hand coding.

3. Main features of a CMS
CMS features vary widely. Most CMS’s include the following.
Web-based publishing,
Format management,
Revision control (version control),
Indexing, search, and retrieval.
Some content management systems also support the separation of content and presentation.

4. Content and Presentation
The content management system (CMS) has two elements:
Content management application (CMA) is the front-end user interface that allows a user, even with limited expertise, to add, modify and remove content from a Web site without the intervention of a Webmaster.
Content delivery application (CDA) compiles that information and updates the Web site.

5. Web CMS
A software system that provides website authoring, collaboration, and administration tools.
Designed to allow users with little knowledge of web programming to create and manage website content with relative ease.
Uses a content repository or a database to store page content, metadata, and other information assets.
Has a presentation layer (template engine) to display the content to website visitors based on a set of templates.
Uses server side caching to improve performance.

6. Capabilities of a CMS Automated templates Access control
Scalable expansion
Easily editable content
Scalable feature sets
Web standards upgrades
Collaboration

7. Capabilities of a CMS Delegation Document management
Workflow management
Content virtualization
Content syndication
Multilingual
Versioning

8. Advantages Low cost Easy customization Easy to use Workflow management
Good For Search Engine Optimization

9. Disadvantages Cost of implementations Cost of maintenance
Latency issues
Tool mixing
Security

10. Some Popular CMS
WordPress was the most popular content management system before 2014.
Textpattern is one of the first open source CMS.
Joomla! is a popular content management system.
Drupal is the third most used CMS and originated before WordPress and Joomla.
ExpressionEngine is in the top 5 most used CMSs. It is a commercial CMS
MediaWiki powers Wikipedia and related projects.
Magnolia CMS.
Cascade Server is popular among universities and enterprise scale organizations.
eXo Platform Open Source Social CMS.
Liferay Open Source Portal WCMS.