When sharing a model-driven app, what must be done regarding users and security roles?

When sharing a model-driven app, it is essential to assign users to a security role and ensure that these security roles are linked to the app. This is crucial because security roles determine the level of access users have within the app, including what data they can see and what actions they can perform.

By adding users to a security role, you are effectively granting them permissions that correspond to their responsibilities and needs within the context of the app. Assigning these roles to the app ensures that the users can interact with the elements of the app appropriately based on their designated permissions. This structured approach to security ensures that sensitive information is protected while allowing users to function effectively within their roles.

In contrast, other options such as merely adding users to a predefined or custom security role without linking them to the app, or suggesting that model-driven apps do not need to be shared, do not adequately address the need for both assigning roles and contextualizing them within the specific app environment. Therefore, the comprehensive method of adding users to a security role and assigning those roles to the app ensures robust and appropriate security management.