It was only when the design was able to pass strict enterprise-grade Zero Error standard of 400 units surviving 500 hours of the toughest continuous testing without a single error or failure that the drive was manufactured.

ENGADGET: Plextor M5 Pro bulges SSD envelope with 94K IOPS and 540MB/s

But investigators are focused on a failure of the train tracks themselves, as opposed to an error by engineers or a failure of the train's signal system.

WSJ: Probe of Metro-North Derailment in Connecticut Focuses on Rail

Hania said, however, it is more likely that a network error or system failure caused the problem.

CNN: Microsoft Web sites suffer large scale blackout

Wells Fargo's revised policy takes back unpaid compensation awards in the event of misconduct, material error, failure to supervise or in the event the company or an individual executive's business group has a material downturn in financial performance or failure of risk management.

WSJ: Banks Bow to New York on Clawbacks

However, to a scout, failure to identify a single quirk or glitch could lead to a costly error and possible job termination.

FORBES: The Brilliance and Defiance of 'Moneyball's' Player Development Strategies

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WSJ: Blindfold Brackets 2013: Official Rules