"Functional Testing of PCBs is always used as a final manufacturing step. Functional testing provides making a decision to go or not to go on finished PCBs.
Manual functional testing of one Joker TV assembled PCB takes about 5 minutes. I have decided to automate this process with open-source hardware testing framework (OpenHTF). PCB functional testing time is shrunk to 1 minute. This is 5 times less than manual functional testing and less error prone (no human factor)."