At the same time, we talked with the clerks, gatekeeper, cleanner, security guard to know the life of the elderly stock investors with the view of spectators and asked for their perspective of this change.
Later, we went back to talk with the elderly themselves to see why they got together there after retire, what they used to do there, and their advice of the transform. We used interviews instead of questionnairs to experiment 27 elderly stock investors in the office to get their ideas.
3. CASE STUDY
We chose 4 elderly stock investors to follow their daily activities for the detail research.