5 guidance statements support this user need context:
- Error identification - For systems with possible errors, people may need errors to be identified sensorily and programmatically.
- Error prevention - For systems with possible errors, people may need submissions to be checked, confirmable or reversible
- Error suggestion - For systems with detectable errors, people may need error messages to suggest corrections or state that the system is at fault and the user is unable to fix the error.
- Recognize individual - For systems that use biometric verification tools such as facial appearance, iris pattern, or finger presence, people with atypical biometric factors may need ways to verify their identity with equal reliability to other people.
- Without fear of consequences - People may need to be able to use products without the fear of negative consequences if they make mistakes.