714 / | HD | ERROR DETECTION/CORRECTION AND FAULT DETECTION/RECOVERY |
FOR 231 | DF | RELIABILITY AND AVAILABILITY (395/180) {4} |
FOR 255 | DF | .~ Fault locating (i.e., diagnosis or testing) (395/183.01) {7} |
FOR 275 | .~.~ Output recording (e.g., signature or trace) (395/183.21) |