Opinio is a comprehensive system to create, publish, analyze and maintain surveys. With java/servlets at its base, it is a platform independent, robust and scalable survey system.

Opinio is designed to be:

Opinio stores all its information in a central database; surveys, responses to surveys, admin users and access rights - all stored in one single place. Opinio does not require a specific database engine. Apache Derby (default), Oracle, MS Sql server, IBM DB2, MySql, and Postgres are supported.

The latest version of Opinio is available here: http://www.objectplanet.com/Opinio

Third party software