In certain situations, we might have to integrate third-party software into our portal to make the portal more robust and to enable it to fit into our organization infrastructure.

Alfresco is another exciting open source alternative for enterprise content management and document management. For more information, you can visit http://docs.alfresco.com/community/concepts/welcome-infocenter_community.html.

Let's discuss a case study where the Palm Tree enterprise already has Alfresco set up for the employees and contains a huge amount of document data, which needs to be accessed in Liferay Portal by the end user.

Basically, Liferay provides easy ways to integrate the Alfresco repository using Content Management Interoperability Services (CMIS). Both Liferay and Alfresco support the CMIS feature to integrate other content management repositories.