## 7 Field Study to Evaluate User Experience of Urban Interfaces
### Description of Observed End Users
Details are provided below on how each of the observed groups was organized:
* _Taxi ticketing kiosk in the Monterrey International Airport for purchasing airport transfers._ Three groups of potential users of this kiosk were identified: foreign visitors on business trips, parents who are holidaymakers, and foreign students attending a local educational institution for study purposes. In each case, these individuals require a taxi service, and are unfamiliar with the interface. It is important to mention the presence of an additional variable: An individual's native language. The kiosk offers information in Spanish, English and French, but in each group, there are individuals who may need to use the kiosk in different languages. The rest of the characteristics are displayed in Table 4;
* _ATM of CFE-Matico for paying electricity bills._ Three groups were established: female homemakers dedicated to housework, parents with a stable job, and elderly people who have retired and collect a pension. In each case, these people use the machine to pay the electricity bill corresponding to their permanent address. In this instance, individuals' familiarity with making payments via this digital channel was also taken into consideration, as some individuals will have used this method before whilst others may not. Table 4 displays the full set of characteristics of this group;
* _Parking Meter of San Pedro Garza Garcia Town Hall._ Three groups were formed consisting of individuals who need to pay for parking using an urban interface. Firstly, those visiting a local bank or business near the car park when time is a factor; secondly, those visiting a local restaurant when time is not a factor; and thirdly women who going shopping who are not sure how long they will take. It is important to mention that one criterion that was taken into consideration was that the individual using the car park must be the owner of the vehicle in question. Additionally, researchers also checked that the people did not work in any of the nearby businesses. Table 4 displays the full set of characteristics of this group;
* _Mexico City Government Treasury Kiosk._ Three groups were observed: Business owners or managers needing to perform business activities, and pensioners or parents needing to perform personal bureaucratic procedures. In each of these groups all individuals lived in Mexico City. Table 4 displays the full set of characteristics of this group;
* _Metrobis ticket vending machine for public transport in Mexico City._ Three groups were formed: individuals living in the city who have stable employment and who need to move about locally, tourists who are in the city and need to use public transport for a short period of time, and students who live in the city and need to get to one of the local academic institutions on a regular basis. As in the case of the airport taxi kiosk, the native language of users was taken into account, as tourists may need to use the machine in another language. Table 4 displays the full set of characteristics of this group;
* _Home Center Self-Checkout Machine in Bogota._ Three groups were observed: self-employed professionals dedicated to construction and maintenance, maintenance employees, and individuals doing DIY and remodeling their homes. In each case the individuals observed lived in Bogota. Table 4 displays the full set of characteristics of this group;
* _Automated parking machines in commercial shopping centers in the city of Cali._ Three groups were considered: individuals going to the commercial shopping center to go shopping, students taking a stroll and window shopping or hanging out with friends and pursuing leisure activities, and elderly people attending a specific activity in the shopping center at a specific time of day who limit their visit solely to said activity. In the case of the first two groups it was understood that they do not go the shopping center on a specific schedule or for a limited amount of time.