Tree Testing

Tree testing evaluates information architecture without the distraction of a fully designed interface. Participants are given realistic tasks and a simplified text hierarchy of category labels. They choose where they would navigate to find an answer, service, or resource. Researchers observe whether the destination is correct, how directly people reach it, and which labels cause confusion.

The method is particularly useful before a navigation redesign or after card sorting suggests possible groupings. It can reveal that visitors look for warranty coverage under "Support" while the organization has filed it under "Company." The result may justify renaming or moving the category before development begins. Tasks should reflect real information needs, not lead participants by repeating the exact menu label being evaluated.

Tree testing is different from card sorting: card sorting explores how people might group information; tree testing evaluates whether a specific hierarchy helps them find it. It also differs from testing a finished website, where visual design and interaction details can affect performance.