No. 015
User Research
Card Sorting
Card sorting is a research method where users group and label topics to reveal how they expect content to be organized.
Why it matters
It grounds information architecture in how real users think, rather than how the team or business happens to categorize things.
In depth
Card sorting can be open (users create their own categories) or closed (they sort into predefined ones). The results inform menus, labels, and structure. It is one of the most direct ways to align an information architecture with users' mental models.
Real-world example
Giving participants cards labeled with site topics and asking them to sort into groups they'd name themselves shapes a navigation menu.
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