Entities in OutSystems are primarily used for what purpose?

Entities in OutSystems serve the fundamental purpose of storing persistent business data. This means they are used to define data structures that your application will work with over time, allowing for the storage and retrieval of information that remains integral to the application's operation even after it is closed or restarted. Examples of such data include user information, product details, or any data that needs to be maintained between user sessions.

When an entity is created, it typically maps to a database table, where each instance of the entity represents a record within that table. This design is crucial for managing and utilizing business data efficiently and effectively, enabling applications to maintain a state and ensure that data is consistent and reliable throughout the various operations performed by users.

The other choices do not accurately describe the primary use of entities in OutSystems. For instance, while temporary storage may involve other data structures, entities are specifically focused on persistence rather than interim data handling. Managing application logic is generally related to action flows and business rules rather than data storage. Finally, user interface design pertains to the visual aspects of the application, which are handled separately from the data management provided by entities.