Card sorting is a UX research method for building an intuitive information architecture or evaluating the existing one. Within this study, researchers ask participants to organize individual labels written on notecards, pieces of paper, or using an online card-sorting tool (e.g., Miro) and group them into logical categories.^[1]

This technique helps teams understand how users perceive content and organize it to fit their mental models. You can also run a card sorting session when you want to learn what kind of language your audience uses to talk about your product and use these words for your labels.

The disadvantages of this technique include:

• Labels are used out of context. Users navigate interfaces relying on visual signs, and notecards with labels may not be enough to understand a website's goal.
• The analysis takes time. The analysis of study findings can be time-consuming, especially if results are inconsistent.
• The findings may not go deep enough. Users may rely on categories differently when performing tasks. Thus, your analysis might only provide an overview of the problem without revealing the details.