ValidationForm and ValidationPanel
The ValidationForm (CscScriptValidationForm) object contains the layout definition of a Validation form. This object is placed on the scripting sheet of a class. It is available if a Validation form is defined for that class. It represents the document content.
If folders are enabled for a project the object that reflects the folder content is the ValidationPanel (CscScriptValidationPanel).
The following image shows Validation with the document and the folder field area:

The ValidationForm object provides access to the defined controls. The layout of a validation form consists of one or more tabs. If only one tab is defined it is not displayed in Validation meaning that access to the first element of the tabs collection is ignored.
On a validation form you can define buttons, labels, fields, mini viewers, tables and groups on a tab. The collections of the Tabs, MiniViewers, Labels, Fields, Buttons, Tables and Groups of the ValidationForm object contain all controls, independent of the tabs or groups where they are defined. The collection of a tab contain all controls that are placed directly on the tab (MiniViewers, Labels, Fields, Buttons, Tables and Groups). You can group MiniViewers, Labels, Fields and Buttons so that these controls are part of the collections at the group object.
The ValidationPanel object is part of the folder script and is related to the ValidationForm object that is available when a form layout is defined for that folder. The ValidationPanel object provides access to all defined folder field related controls on its layout. You can define buttons, labels, fields and groups that are accessed through the Buttons, Labels, Fields, and Groups collections. As for the ValidationForm object all controls can be accessed by the collection objects of the ValidationPanel object independently to their group. If Fields, Labels and Buttons are grouped, the group object contains these items as well.
If a ValidationPanel is available in script it provides access using the ValidationForm property to the ValidationForm object that is displayed at the same time. The same is true for the ValidationForm object it provides access via the ValidationPanel property to the folder field layout.
For a detailed reference to the available methods and properties of both objects please refer to the API reference and to the corresponding object model:
ValidationForm and ValidationPanel Events