Fault

A fault is an incorrect element in a requirement, design, implementation, configuration, or data record.

For example, a requirement may contain a contradictory attribute value. Likewise, software code may contain incorrect logic.

Human error can introduce a fault. However, the system may not show an immediate problem. A failure occurs only when the incorrect element causes observable behaviour that differs from the expected result.

Teams detect such issues through reviews, consistency checks, reports, and tests. Next, they analyse the cause and correct the affected work product. They also update related records, rules, and traceability links.

Automated validation can identify missing values, invalid combinations, and incorrect status transitions. Moreover, clear ownership and controlled changes help prevent similar problems.

Early detection supports consistent requirements, reliable implementation, and effective quality control.