Card sorting is one input into the bigger picture of user research for a project. As such, documentation is not strictly necessary—you can use the insights you gained without having to write them down.
But even when I don’t need to document the card sort, I still make sure I do it. Why? Because documentation has many benefits:
- When you have to explain something in writing, you are forced to justify your findings. I often start writing and discover that some of my conclusions aren’t supported by the data.
- Documenting the outcome gives legitimacy to the process. It shows that you thought about what you were doing and what came out of the activity.
- It helps share what you learned, and may allow others to represent the findings ...