# data[].attributes.body
Function: when it’s time that was set, the machine would automatically release food.

Input: to time that it’s set

Output: release food

Customer: people who has pet but needs to go to work and don't have time to feed them.

# data[].attributes.body
2nd design:

Function: when the cat press the putton, the machine would release food.

Input: press the button

Output: release food

Customer: owners that are lazy to feed their pet or too busy

# data[].attributes.body
3rd design.

Function: the cardboard would release food when the sensor detects the pet closing by.

Input: pet closing by

Output: the cardboard would turn away and the food in the box would fell down to the bowl for the pet to eat.

Customer: owners that forgot to feed their pet or went out and left the pet starving.