There are three main editions of ARDI, designed for different sized markets.

The basic version is designed for users who are just getting to know ARDI or are using it for small applications, rather than part of their infrastructure.

It has some restrictions compared to the Standard and Enterprise versions.

• It only allows two simultaneous users.
• It is not available for large numbers of active elements.
• It does now allow some addons to be installed - particularly authentication addons.
• It does not work with the Collaboration features.

The standard version is designed for small-to-medium applications where only a few users will be accessing the system at a time.

• It only allows up to ten simultaneous users.
• It does not work with the Collaboration features.

The enterprise version of ARDI is for all applications and has no limit on the number of simultaneous users.