For my school project I'm realizing some sort of digital touchscreen that can show the full stock of warehouses.
For the usability of the screen and the software that's currently running on it i did like 15 interviews. They've all told me the same thing and that's: Yes, sure i would buy something with this thing. And oh i think this is quite necessary when I'm buying something.
So now: the project is almost finished and it's ready to be put in real stores. I just want to ask the people if they will buy something with my display. For now i've got 5 people.. do you guys think that's enough?