What type of parameter is needed to associate with a form's Visible parameter?

To associate with a form's Visible parameter, a Yes/No parameter is required. This type of parameter allows for a straightforward binary choice, enabling the visibility of a form to be toggled on or off. When developing a Revit model, particularly when working with elements that may need to be displayed conditionally based on specific criteria or user selections, defining a parameter as Yes/No allows the designer to create a simple and effective control system.

In practice, if an element's visibility is dependent on certain conditions — for instance, a curtain wall that should display only under specific circumstances — using a Yes/No parameter provides the necessary functionality. This parameter can be linked to visibility settings in families or within a project to streamline design tasks, ensuring elements appear or hide as intended.

Other types of parameters, such as common, visibility, or text, do not provide the same level of simplicity or applicability for controlling visibility options directly. Thus, the Yes/No parameter is the optimal choice for effectively managing visibility in Revit.