Introduction

The project is about the analysis of the students understanding in analyzing a given scenario and practical skills to apply concepts and build diagrams studied in IT242 (Software Engineering). The project consists of five parts. Students are required to answer all of these parts based on the below scenario.

Choco Shop, a shop that sells chocolates, is in the process of expanding its business. In order to achieve this plan, the Choco Shop management would like to start developing a WebApp with the following scenario:

The Choco Shop management wishes to have a WebApp that handles up to 100 users simultaneously, and uses lots of animation. Users should be able to view the available chocolate items and if they would like to be customers they have to register in the system. When a customer creates an account, the customer login credentials (username and password) must be chosen. After logging to the system, customers can search for available items, order items, pay online after providing the credit card information, and they are able to write their feedback. The WebApp should verify the login credentials such as the user name and password. The system verifies the credit card information and, if approved, the order is finalized, and the system sends a confirmation message to the customer.

The Choco Shop employee is responsible for managing the customer orders, adding items, deleting items, and updating the customer information. The employees will be able to do the activities only after logged into the system. The Choco Shop administrator can check the status of the online orders, check inventory, send a request to a supplier, update the inventory, and update suppliers information in the database. The administrator will be able to do the activities only after logged into the system. The supplier can add new chocolate items and add details of special discount offers. The supplier will be able to do the activities only after logged into the system. The Choco Shop management would like to have a system that allows the customers to pay in different currencies.

Questions of this part analyze the students understanding in analyzing the given scenario and practical skills to build Sequence diagrams studied in Chapter 11 of IT242.

4.1 The Choco Shop management would desire to develop an online payment system for customers once they have confirmed the item order process that mentioned in the Choco Shop scenario. Draw a Sequence diagram for the below flow of events. You are required to identify relevant objects and methods according to the given steps. (9 Marks)

Flow of Events in the online payment activity:

The customer confirms the order and goes to online payment option.

The system asks the customer to enter Visa/Master card number.

The customer enters his/her card number.

The system verifies the account number with the card provider.

The system Administrator verifies the submitted details.

A message to add amount to inventory will be sent.

The system accounts will be updated.

The system receives a successful receipt of transaction from system accounts.

The customer receives a confirmation message from the System.

The customer exits from the online payment option.

(please draw by program because I cannot understand some word and please answer with new don't copy other answer, this second time I post this question)