Fig. 2 presents the process of location tagging and removal.
Fig. 2a represents the initial version of map.
In order to start the location tagging process,
first the user can search for a location by entering its name into the search box (Fig.
2b).
Then, a red pin appears on the searched location in the map.
After that, when the user taps on the red pin,
a pop-up window named Add Place appears and the user is expected to either approve or cancel the process of adding place to the system (Fig. 2c).
The approval converts the color of the pin from red to green (Fig. 2d).