## Description
Participants cards sort a deck of index cards with topics on them into:
- Freeform groups
- Predefined groups
This can be done with paper or digitally
- The method provides insights into users natural/intuitive grouping of key elements
- This can be useful in interface design, to e.g., optimize grouping of product categories.
- Predefined groups can be rankings!
Other design methods may be confused with this one
- [[Ranking]]
- [[Priority game]]
## Examples
## Related notes
- [[Clustering]]
- [[Grouping]]
## Roots
- https://www.nngroup.com/articles/card-sorting-definition/