What is the main purpose of Screen Preparation in OutSystems?

The main purpose of Screen Preparation in OutSystems is to fetch data from databases. During the Screen Preparation phase, the application prepares the data that will be displayed on the screen, ensuring that all necessary information is loaded before the screen is presented to the user. This involves executing queries and gathering data, which is essential for rendering the user interface with the appropriate context.

Fetching data at this stage allows developers to bind UI elements to specific data from the database, facilitating a dynamic and interactive user experience. Additionally, by loading data upfront, it reduces the likelihood of the user encountering delays or loading indicators once the screen is presented, resulting in a smoother overall experience. This preparation phase is critical for ensuring that the information displayed is current and accurate based on user interactions and application logic.

In contrast, the other options involve different aspects of the application lifecycle and user interaction. Deciding what widgets will be rendered, submitting form data, and redirecting users are important operations but are not the primary focus of the Screen Preparation phase. These activities occur either during or after the screen's presentation, rather than during its preparation.