Solution Approaches There were two ways to go about thinking a design solution for an ATM Approach 1: Gradual improvement *: this approach would focus on improving the existing interaction paradigms between user and ATM. Approach 2: Radical improvement: this approach would introduce new interaction paradigms. This is more experimental and requires a higher learning curve for users *in this exercise due to time constraint, my focus will be approach2
Challenging Personas ATM Design Challenge The ATM should not only be designed to service tech savvy users. The challenge is to make sure that it is also accessible for Semi literate , illiterate & physically challenged users * It is assumed that Learning Curve for these type of users will be very minimal. Hence, Literate and Tech Savvy Persona is not discussed here.
Approach 1* : Gradual improvement This would focus on improving the existing interaction paradigms. This approach do not introduce big changes. i.e. user will still carry a plastic card, visit ATM machine, swipes to verify the access, interact with the interface too pass instructions, get a textual feedback etc. the design may improve the existing interaction paradigm and introduce better and more usable interface. Designers can follow UCD process to get user feedback and improve on the design iteratively. * as ,mentioned earlier, I will not detailed out the approach 1 (gradual improvement)
Gradual improvement - ATM Interface Touch screen interface Tactile feedback Remember user choices Important information displayed all the time Secured If not touched for “x” seconds Facial recognition Clear exit Touch screen interface Remember user choice Critical info is displayed Clear exit available to user User preference Easy Navigation
Approach 2: Radical Improvement This approach would bring a paradigm shift for existing interactions. It would challenge the way existing design is presented and being used by users. This is definitely more experimental. Advancement in technology is also one of the key factors that lead to a radical change. For this design challenge, persona & scenarios are targeted for approach 2
User withdraws the cash User finds ATM User can see that no one is inside the ATM Box ATM run a walk pattern detection test against the user near the gate ATM let the user enter (the gate should be designed based on local aesthetics) User authenticate himself using facial detection (the message should be very clear and easy to understand - where to start) User data will be displayed in front of the user on a touch screen interface Conversation between the user and ATM avatar starts at this point Avatar: Welcome <name> how can I help you today? <user data will be displayed on the touch screen in front> User: “I wanna withdraw 2500 rupees “ Avatar: your current balance is rupees 18000. would you like me to give you 2500 rupees? User: “yep” <Processing> Avatar: Please take the cash. Your current balance is 15500 rupees. Would you like to perform any other transaction? User: “Nope” User collect cash and left ATM would know that the user has left. ATM will logoff the user and display welcome screen
User deposits the cheque <Authentication same as previous> Conversation between the user and ATM avatar starts at this point Avatar: Welcome <name> how can I help you today? <user data will be displayed on the touch screen in front> User: “I want to deposit a cheque“ Avatar: Please place the cheque on the tray. <Tray comes out and user places the cheque on it> (does not matter what side the user places the cheque) <processing> It scans the cheque and displays on the screen System extract account information, cheque value and signature from the cheque system matches the signature pattern System checks for the available funds Avatar: the cheque is verified and I am depositing 25000 rupees in your account <Processing> Avatar: Your current balance is 45000 rupees. Would you like to perform any other transaction? User: “No” User left the ATM box ATM would know that the user has left. ATM will logoff the user and display welcome screen
Other design benefits Currently, a user can give the ATM card to a friend or a family member with the pin information. the new design would accommodate this scenario by allowing user to introduce a family member. Further the user may also instruct ATM the limit that is allowed to withdraw by the introduced member Since the ATM will use walk pattern detection and facial detection to recognize users, security agencies could also use ATM video feeds