ZBots are software agents that reside on target automation systems and form the link between the Zephyr Server and the automation tool being used on the target automation system. Based on user action in Test Case Execution, the Zephyr Server connects with the target ZBot and sends over the entire automation script path. The ZBot then runs that command and kicks off the automation script. It does not wait for the script to be completed but sends back a "success" if it is able to successfully kickoff the automation.
ZBots must first be installed on the target automation system. ZBots are supported on Windows, MacOS X, Solaris and Linux.
Secondly, testcases in the Testcase Creation application must be marked as Automated in order for their automation scripts to be kicked off.