A developer is developing Login Page for Company portal. To avoid Unauthentic login he puts Login Id as Employee number and validates with the Employee database. This is called as

Error Proofing (Poka-Yoke) mechanisms prevent errors by designing processes that make mistakes impossible or immediately detectable. Using employee ID validation against a database is a classic example - it creates a foolproof check that prevents unauthorized logins. This differs from simple inspection, which catches defects after they occur, rather than preventing them.