What determines whether an Aggregate fetches data at Screen Initialization?

The correct choice is based on the Fetch property settings of the Aggregate. In OutSystems, an Aggregate is a fundamental component used to fetch data from the database. The Fetch property specifically determines when and how the data is retrieved, particularly at the time of screen initialization.

When the Fetch property is set to "Yes," it indicates that the Aggregate should automatically execute and retrieve data as soon as the screen loads. This behavior allows developers to populate user interfaces with required data immediately, without requiring additional user interactions. It is crucial for ensuring that the necessary data is available when the screen is first displayed.

In contrast, the other options do not directly influence whether an Aggregate fetches data at Screen Initialization. The amount of Input Parameters provided primarily affects how the data is filtered or modified but does not dictate the timing of the data retrieval. Similarly, the presence of user inputs can prompt further data fetching, but that occurs after the screen has already been initialized. Lastly, the type of data being fetched may determine what data is retrieved, but it does not influence the timing of when the fetch occurs. Thus, the Fetch property settings are the decisive factor in controlling data retrieval at the screen's startup.