Feedback recieved in ÖVN4

Today in övning we recieved feedback from group B3:

• How subtle can our implementation be and still be accesible when the cart is very crowded. Also, make it not disturbing when the cart is near to empty.
• Could the walls be used instead of the floor for better visibility?
• How does the solution affect people under the influence of drugs and/or alcohol? This might be the case after concerts.
• Is it worth it to make the application cater to color blind people if the solution looses too much function for people with fully functional color sight?
• In which ways could the system be used for additional fun purposes?
• Is the system clear enough or it's own? Does the user need additional help?
• In winters the floor will get filthy. How would this affect the system?
• Consider working with the sound space as well.
• Consider color temperatures shifting for time of day and seasons.
• The sketches were a bit unclear in what they were actually showing. 
• Nielsen heuristics were hard to apply to our concept.
• Could we use targeting towards specific individuals in any way?