The purpose of the app is to search seats that people takes. We can share a information of vacant seats locationally near us. And we can search the information using map.
Main target users are the people who commute on a train to their offices during rush hour.
Especially elderly people need to sit on seats.
And also rap top PC users need a seat for typing a keyboard.
Another target users are the people who go to restaurants at lunch time or at dinner time.
They want to know which restaurant can provide a vacant table that they take quickly.
According to above purpose, we can use the app to exchange the information of vacant seats in the trains and vacant tables in the restaurants.