Closed card method steps

1. Write the items and groups on cards or sticky notes: Write the items and groups on cards, pieces of paper, or sticky notes. Use a different color for the group names as they will be used to classify the other cards.
2. Organize the cards into groups: The participants are asked to organize the elements into groups. Each of the groups will be headed by one of the different color cards, those that correspond to group names.

The participants will classify each of the elements into one of the groups.

Perhaps, a participant can feel that some cards do not belong to any of the groups. These cards can be grouped separately. Identifying new groups will help you to analyze why those cards do not match the user mental model and whether to incorporate new categories, discard or adjust the concepts.