System Analysis and modeling

Assignment case study

Disclaimer: The situation described in the following case study is fictional, and bears no resemblance

to any persons, businesses, or organisations, living or dead. Any such resemblance, if exists, is merely

co-incidental in nature, and is not intentional.

Feed Me Now is an online company that provides food delivery services, connecting restaurants (and

also cafes) with individuals. Feed Me Now allows restaurants which would otherwise be dine-in and

takeaway businesses to also provide home delivery and online ordering (for pick up takeaway

orders) services.

Upon signing up with Feed Me Now, restaurants specify whether they will cater for home delivery

only, or both home delivery and pick up takeaway. Feed Me Now does not make any money from

online ordering, as no additional fee is charged on top of the restaurant price for pick up takeaway

orders Feed Me Nows income is solely from delivery fees.

Restaurants provide Feed Me Now with a list of menu items to be made available on the service.

Each menu item includes a name, description, price, picture, and category. Restaurants can define

their own categories for items. Individuals can browse the menu for each restaurant, and each

restaurant has a name and address.

Individuals can place an order through the Feed Me Now website or Feed Me Now mobile

application to any of the restaurants on the service. Each order comprises a list of items and their

quantities selected from the menu items, all of which are from a single restaurant. For home

delivery, Feed Me Now charges a delivery fee on a per kilometre basis calculated on the distance

from the restaurant to the delivery location the distance is calculated using an external mapping

service, which takes two street addresses and returns the road distance between them. The delivery

fee (for delivery orders) is added to the total price of the selected menu items to determine the

order total. An order may have different delivery and billing addresses (but might not), and pick up

takeaway orders do not require individuals to enter a delivery address.

Orders can be paid for through a wide range of payment methods. Payment methods notify the

ordering system when payments have been successfully completed (so that orders can be

processed). Previously used payment methods and previously placed orders can be favourited by

individuals for quicker payment or re-ordering in the future.

Individuals can make special requests for each item in their order. Each order has a status that

describes what the current progress of the order is. Some example statuses are: Creating order

(while the individual is adding items to their order), Awaiting payment (when the individual has

finished adding items and is putting in their payment details), Payment confirmed, Being made,

Ready for pickup (regardless of whether it is ready for the driver to pick up for delivery orders, or

the individual to pick up for pick-up orders), With driver, Delivered (for delivery orders), and

Picked up (for pick-up orders).

Each delivery order is delivered by a driver. The driver for each order is recorded, so that drivers can

be paid appropriately (similar to the delivery fee, this is calculated on a per kilometre basis) and also

tips from individuals can be added to their payment for each order they deliver. Individuals are

prompted to provide a tip amount (which can be $0) after the order delivery has been completed.

Drivers are not restricted to working for particular restaurants they are able to handle any orders

they wish to within the Feed Me Now service.

4. Behavioural analysis - overall (10 marks) Describe the overall behaviours of the system using one of the following formats, and explain and justify the choice of format. Top-level (Level 1) dataflow diagram including appropriate data dictionary entries Use case diagram (or diagrams, if split into clearly explained subsystems or other groupings) If both formats are provided, only the first in order of appearance in the report will be marked. This includes the following elements: a) (8 marks) Diagram (as specified above), including explanatory notes b) (2 marks) Explanation and justification for the choice of format, including comparing and contrasting the choice of format with the alternative, no longer than 2 paragraphs 4. Behavioural analysis - overall (10 marks) Describe the overall behaviours of the system using one of the following formats, and explain and justify the choice of format. Top-level (Level 1) dataflow diagram including appropriate data dictionary entries Use case diagram (or diagrams, if split into clearly explained subsystems or other groupings) If both formats are provided, only the first in order of appearance in the report will be marked. This includes the following elements: a) (8 marks) Diagram (as specified above), including explanatory notes b) (2 marks) Explanation and justification for the choice of format, including comparing and contrasting the choice of format with the alternative, no longer than 2 paragraphs