COS3711 Assignment
2 (COMPLETE
ANSWERS) 2025 - DUE
18 July 2025
For assistance contact:
100% TRUSTED WORKINGS, EXPLANATIONS & SOLUTIONS
,COS3711 Assignment 2 (COMPLETE
ANSWERS) 2025 - DUE 18 July 2025
Implement an application that tracks items bought from a
store. Screenshots of possible interfaces have been
provided as guidance below. Store application The store
keeps a list of customers so that when something is
purchased from the store, it is recorded against that
customer’s name. Only the customer’s name is required.
Only two items are currently sold in the store currently –
books and magazines, and only the name of the item is
required. Clearly, a list of such items is needed, and the
user should be able to add items to the list. When an item
is added, the application should automatically make a
backup in Downloaded by Vusi Xhumalo () lOMoARcPSD|
COS3711/Assignment 2/2025 3 memory in case
something goes wrong when the application is being
used. Provision should thus be made to restore this list
when necessary. Clearly, for the sake of data integrity,
you do not want the user to create multiple copies of
these lists. When a customer purchases items, a
transaction is recorded. The date/time of the purchase is
noted, as is the name, type, and quantity of each item
purchased as part of the transaction. Use an appropriate
widget to indicate which items have already been added
as part of this transaction. All transactions should be
displayed on the main GUI. A tree model (and appropriate
view) should be used so that a user can see a customer’s
transactions grouped together. Downloaded by Vusi
Xhumalo () lOMoARcPSD| COS3711/Assignment 2/2025 4
The user should be able to broadcast (using UDP) the
, contents of the model in XML format. This task should be
run as a thread in the main application. The required XML
format can be seen in the image in the next section. UDP
receiver application Create a separate application that
simply listens for the broadcast message and displays the
received data (in XML format) on the GUI.
Here’s a breakdown of how you can approach and implement the COS3711
Assignment 2/2025 application:
✅ Key Functional Requirements
You need to implement two applications:
🛒 1. Store Application
🌟 Features:
a) Customer and Item Management
Add customers (name only).
Add items (books and magazines; only name required).
Maintain a single list of each, avoid duplicates.
Backup and restore item list (stored in memory).
b) Transactions
Record transactions:
o Customer name
o Date/time
o Item(s) (type, name, quantity)
Display transactions grouped per customer using a tree model (e.g.,
QTreeView with QStandardItemModel in PyQt5/6 or similar in
JavaFX/Swing if using Java).
2 (COMPLETE
ANSWERS) 2025 - DUE
18 July 2025
For assistance contact:
100% TRUSTED WORKINGS, EXPLANATIONS & SOLUTIONS
,COS3711 Assignment 2 (COMPLETE
ANSWERS) 2025 - DUE 18 July 2025
Implement an application that tracks items bought from a
store. Screenshots of possible interfaces have been
provided as guidance below. Store application The store
keeps a list of customers so that when something is
purchased from the store, it is recorded against that
customer’s name. Only the customer’s name is required.
Only two items are currently sold in the store currently –
books and magazines, and only the name of the item is
required. Clearly, a list of such items is needed, and the
user should be able to add items to the list. When an item
is added, the application should automatically make a
backup in Downloaded by Vusi Xhumalo () lOMoARcPSD|
COS3711/Assignment 2/2025 3 memory in case
something goes wrong when the application is being
used. Provision should thus be made to restore this list
when necessary. Clearly, for the sake of data integrity,
you do not want the user to create multiple copies of
these lists. When a customer purchases items, a
transaction is recorded. The date/time of the purchase is
noted, as is the name, type, and quantity of each item
purchased as part of the transaction. Use an appropriate
widget to indicate which items have already been added
as part of this transaction. All transactions should be
displayed on the main GUI. A tree model (and appropriate
view) should be used so that a user can see a customer’s
transactions grouped together. Downloaded by Vusi
Xhumalo () lOMoARcPSD| COS3711/Assignment 2/2025 4
The user should be able to broadcast (using UDP) the
, contents of the model in XML format. This task should be
run as a thread in the main application. The required XML
format can be seen in the image in the next section. UDP
receiver application Create a separate application that
simply listens for the broadcast message and displays the
received data (in XML format) on the GUI.
Here’s a breakdown of how you can approach and implement the COS3711
Assignment 2/2025 application:
✅ Key Functional Requirements
You need to implement two applications:
🛒 1. Store Application
🌟 Features:
a) Customer and Item Management
Add customers (name only).
Add items (books and magazines; only name required).
Maintain a single list of each, avoid duplicates.
Backup and restore item list (stored in memory).
b) Transactions
Record transactions:
o Customer name
o Date/time
o Item(s) (type, name, quantity)
Display transactions grouped per customer using a tree model (e.g.,
QTreeView with QStandardItemModel in PyQt5/6 or similar in
JavaFX/Swing if using Java).
