Final answer:
The functionalities for user registration correspond to specific business rules: validation of registration code, ensuring email address uniqueness, and allowing users to update their account information.
Step-by-step explanation:
The student is asking about functionalities in a user registration system that correspond to specific business rules. Each functionality is crucial to ensure that the user registration process is smooth, secure, and effective.
- Validates Registration Code: This functionality checks whether the registration code entered by a user is valid. This is an essential step to prevent unauthorized access and to confirm that the user has been invited or has a legitimate code to register.
- Displays Message Informing of Unique Address: This functionality informs the user if the email address they are trying to register with is already in use. It is important for maintaining unique user accounts and preventing duplicate registrations.
- Updates Account Info: This functionality allows users to update their personal information, such as password, email address, or contact details after their account has been created. It is critical for keeping user's account information current and accurate.