…t we pay more attention to our own objectives than users’ demand. The founder of Ford Motor Company Henry Ford’s ever said: “If I ask my users what are their demands, they’ll only say they need a faster horse.” Then how to make a horse faster? To give them better feed? Reduce the saddle weight? Why don’t we replace the horse with a better transportation like a car? That is the heart of the matter since users want a faster horse because they want to reach their destinations more quickly.