Consistency and standards are key principles of user-friendly design. They ensure that similar elements and processes within a system are presented uniformly and align with user expectations. Through recurring patterns, familiar symbols, and standardized terminology, learning effort is reduced and usability is improved. Users can navigate more easily and act more efficiently. Consistency builds trust and supports the predictability of system behavior. Adhering to established design and interaction standards is essential for creating intuitive and accessible user experiences in both analog and digital environments.