Opsoro leverages technologies that are used and provided by Alfresco as well as additional frameworks:

Alfresco Content Repository

Alfresco have integrated state-of-the-art open source and Java technology such as Spring, Hibernate, Lucene into a simple-to-use, extensible Open Source Enterprise Content Management (ECM) system. An Alfresco repository can be accessed via Axis2-based web services or by using the RESTful Web Scripts.

Alfresco Web Scripts