Requirements

Opinio requires the following pre-installed:

Java 1.4 or newer
A web server with a Servlet/JSP container. This must conform to the servlet 2.3 specification or newer.

A servlet/JSP container (Tomcat) can be downloaded here: http://jakarta.apache.org/tomcat/index.html

Hardware requirements:

64 mb memory (128 mb or more recommended)
10 mb disk space for Opinio
5 mb disk space for the database. This will vary depending on the database system used, and will require more with many responses. More statistics on this will be added later.
Other hardware requirements depends on usage. With high volume surveys, a fast processor and disk may improve scalability.