Commissioning consists of systematically documenting that specified components and systems have been installed and started up properly and then functionally tested to verify that systems are complete and functioning properly upon project completion. Proper functional performance test development plays a big role in the success of commissioning. The intent of this portion of the seminar is to present various means & methods for functional performance testing. Means and methods such as control modification, injection, stimulation and actual event will be discussed in depth.