Similar

• Both are enterprise content management systems.

Different

• Tiki is community open source while Alfresco is single-vendor commercial open source
• Tiki is in PHP, and DNN is in .Net

CMS Matrix

Compare them at http://cmsmatrix.org

CMS Match

http://www.cmsmatch.com/compare/content-management-systems/380+1073

Active contributors

Number of contributors who made changes to the project source code each month.

Alias

• DotNetNuke