Closed Loop Testing definition

Closed Loop Testing means a virtual environment that does take the actions of the element-in-the loop into account. Simulated objects respond to the actions of the system (e.g. system interacting with a traffic model).
Closed Loop Testing means testing in an environment in which actions of the ADS hardware, software, or other element(s) in the loop influence the actions of other objects in the simulation.12
Closed Loop Testing means a test method for which the input stimuli are generated by controllers which drive the FSTD to follow a pre-defined target response.