An improvement design of a four-quadrant and voice interaction user interface of a smartphone for the visually impaired user

As a result of the previous design of a user interface of a smartphone for the visually impaired (VI) user, in this paper, we propose an improved design of the VI user interface which is based on the operation frequency of when a specific user uses a particular smartphone. As a result of the accumulation of the operation frequency of the smartphone function, this design will move this function with the highest frequency of operation to the first position. As a result, the next time a user uses this function with a less time.