Which tool would you use to evaluate a user form for properties that use declarative processing?

The correct tool used to evaluate a user form for properties that utilize declarative processing is Live UI. Live UI allows developers to inspect and modify the runtime display of a user interface directly in the application. This tool provides an interactive view of the application's interface, enabling you to see how properties are rendered and utilized in real-time.

When using Live UI, you can select elements on the screen to reveal their associated properties and the underlying data structures. This makes it easier to understand how declarative rules impact the presentation of the form and how they function dynamically when user interactions occur.

This level of inspection is particularly beneficial for applications that leverage declarative expressions, as it allows developers to see the immediate effects of these expressions without needing to dive into the back-end logic or properties manually.

In contrast, other tools like the Clipboard primarily provide insight into the application's data state at a point in time but do not interactively display how these properties relate to the user interface. The Tracer is useful for viewing the execution of rules and processes but is less effective for specifically examining a form's UI components. The Declarative network display shows how rules are interconnected, but it does not focus on the real-time user experience as Live UI does.