Human error is a significant driver of operational failures. To mitigate this risk, modern control design prioritizes transitioning from manual controls to automated, system-enforced mechanisms wherever practical.

Manual Checklist Processing ---> Shifting to ---> Automated Code Validation Rules

Manual controls (such as manual calculations or checklist reviews) are flexible but vulnerable to fatigue, distraction, and intentional bypass. Automated controls (such as system validation rules, mandatory data formats, and automated database lookups) are executed consistently by code, removing human discretion and significantly reducing processing error rates.

When a process cannot be fully automated, organizations implement hybrid controls, using system-generated exception reports to guide manual supervisor reviews.