A restaurant management process can be graphically illustrated by using a context diagram. In the restaurant management context diagram, there are two main entities: customer and supplier. The customer is the person who would either visit the restaurant in person or order the food online. In contrast, the supplier is the one who will supply all the raw materials, food items, and other kitchen products to the restaurant. As per the below context diagram, when a customer orders the food from the restaurant, then the restaurant will check the inventory and process the food. If the restaurant does not have any supplies, then they will connect with the supplier and request the desired items. The context diagram of the restaurant management helps to understand the flow of the entire system in the easiest way possible. Try using EdrawMax to create the restaurant management context diagram.