1) How did this exercise help you build empathy with prospective users?

Interview sometime could be really long and hard to obtain useful information. This exercise helped me to pick up key points from the interview quickly, and organize these information in a systematic way.

2) How did the clustering of information help you to understand user needs?

This method helped me to summaries information quickly especially by sharing your ideas with group members. In this way we could easily arrange various perspective into a few general core needs from the user. It would helpful for designer to carry out further deep research.

3) What was different or challenging with the technique? How would you do it better next time?

1.Collecting information from the interview could be difficult and take longer time to finish.
2.Definitely by write down more yellow post it note will help this technique go smoothly.
3.When arranging the yellow notes, sometime these notes could be overlapping or meaning same needs of the user.
4.Limit the duration of interview and try to carry out more interviews.