Question

Mcdonalds needs to have a new sales, inventory and service system designed. You have conducted some interviews and reduced requests down to the following key capabilities of the system: (1) Customer Will order food and make the payment

(2) Store shift leader Will hold the rights to change the menu and enter the  POS system to make any changes (3)POS System Serve as a backbone for doing the credit / debit card transaction.(4)   Food Preparation Employee This person receives the order placed by the customer through internal order system.

              Draw a functional decomposition and context-level diagrams.

Answer 1

The functional decomposition diagram shows the detailed functions and their internal relationships with each other.

Here there is a function defined by the food sell and inventory managing function of Mc Donald.As there are some functions given here we will try to construct the functional decomposition diagram of all the functions given here.

Below I have sown the diagram of the functional decomposition

Context level diagram shows the detailed analysis and data flow between the functions with levels.

Level 0 shows the entry point of customer and then the level goes down according to the functions

Please comment if any doubt