Design and Evaluation of the Internet Drug-purchasing Service for Middle-aged and Elderly Based on SHERPA and FMEA

This article aims to study the Internet drug-purchasing behavior of middle-aged and elderly groups to improve their satisfaction. The results show that the SHERPA and FMEA can effectively find out the defects of the design and pointedly bring up with suggestions for improvement. The suggestions are as follows: control the amount of information displayed, emphasize important information appropriately, and conform the operation process with the psychological cognition of users. The design iteration provides a more satisfactory experience for the groups, and reduces the difficulty of using Internet drug-purchasing service.