The Area being Modelled is :-
Tracking Inventory for Restaurants

Question: Imagine you are designing a system for small restaurant. 
The restaurant has had difficulty ensuring that it has enough of the right ingredients 
for the most popular menu items. 

Your task is to create a database system that tracks the menu items ordered 
(including the dates and times of the orders), the price of the menu items, and a 
primary ingredient required for each of those items, as well as its cost. 

(Note: For the purposes of this assignment, each dish is associated with one primary 
ingredient, and two or more dishes can be associated with the same ingredient.)