COGITO-ERGONOMICO

Android users are Finite State Automata The mobile user is to be considered as an finite State Automata We use our mobiles hundreds of times a day, every interaction with the device being very short. The mobile UX designer cannot assume that we remember exactly where we were in the GUI the last time we used it. Every screen should be easily understandable as it was the first seen screen, with no clues on the previous screens or interactions. A glitched UI design Appropriate Nielsen Heuristic Appropriate Nielsen Heuristic are number 1 and number 6 Visibility of system status Recognition rather than recall Affordances the touch screen --> so I can touch Signifiers left arrow sign --> I can go back input form --> I can input text x sign on the right of the input form --> I can erase the text I entered contact list --> I am in the contact list view of my Android device Android navigation --> I can go back, home, or see the list of ac...

The Wrong Door Dilemma What Would You Do? This is the main entrance of an hospital, in Milan, Italy, seen from outside. Yes, entrance. Think again, what would you do? Or let's say what went wrong with a simple door? It goes wrong when you extend the signifier from the door section to the whole door apparatus. How could we create a conceptual framework that will immediately notify the possibile misinterpretation of our signs and affordances? Let's impersonate an automata state 1: we see a door this door has 4 sections, with no evident clue on any mouvement state 2: we see the 2 signs this door has 2 signs on 2 sections we focus on the 2 signs, we cannot enter;  there isn't any other sign to counteract the prohibition; state 3: we make an inference. We cannot enter. Solution to The Wrong Door Dilemma When using a prohibition sign, in absence of any other positive sign or affordance, add a positive sign or affordance