The Traces tab displays trace links between external artifacts, such as requirements and Windchill traceable objects, such as parts, options, choices, and documents. The visibility of this tab in Structure tab of a part is controlled by the Show Traces Tab in Part Structure preference. When set to Yes, the traces table is visible in the Structure tab. When set to No, the default, Traces tab is hidden for part Structure tab. For more information about trace link concepts, see Working with Traces. For more information about Traced To table, see Traced To Table.