ZUOZ is a collection of atom and molecule libraries, organized by application domain and functionality, intended to be used in test case design using the CHUR syntax. ZUOZ atoms have been implemented using open-source or free software such as Ruby/Watir, AutoIT, Perl, Selenium, etc... They may have dependencies on specific free software packages.

These libraries are organized by application domain areas, and provide the building blocks needed to automate test steps.  Currently, the atom library for testing Web Applications using Internet Explorer (IE7, IE8), Firefox, Chrome is fully functional on Windows (NT, . Additionally, Zuoz also supports browserless testing on both Windows, as well as Linux.