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Create a System sequence diagram and Detailed sequence diagram for this scenario: Suppose you are working as a business analyst and your team just had been hired on a new

project $$ Hot Hangout app. Below are the details of the case:

A coffee shop Hot Hangout is planning to develop a mobile app called Tracker that tracks

customer purchasing behaviors. The following is the description of what the app would

do$.$

Tracker allows a customer to create a personal account by registering first name, last

name and cell phone number. An account can also be created by asking a staff member at

Hot Hangout to enter the required information as well. Before proceeding, the system

checks for duplicate accounts. Upon successful validation, the customer enters

information about the credit card $($e$.$g$.,$ card number, expiration month and year$).$ The

customer has the option to enter multiple payment methods. For each payment method,

the system validates the information; if the information is invalid, the system checks the

next payment method. If all payment methods are not valid, the system terminates the

process. If at least one of the payment information is correct, the system generates a

unique account identifier and securely stores all provided information.

Customers have the flexibility to update their personal information at any time through

the Tracker app's account management features. In addition to updating their personal

information, customers also have the capability to delete their account directly through

the Tracker app, providing them with full control over their account management

preferences.

Once the account is created, the app will create an ID for each account and will generate

a QR code for the customer. Then the customer can use the QR code for any purchase

that the customer makes in store. For example, when a customer brings to the counter the

food $($e$.$g$.,$ beverage, muffin$)$ to be purchased, the cashier will ask if the customer has

Tracker installed. If so$,$ the cashier will ask the customer to show the QR code, and then

scan it$.$ Once the QR code is scanned, the cashier will then scan each item. Tracker shows

the price of each item and calculates the total amount. Once the customer confirms to

purchase, the cashier finalizes the transaction, and the amount will be deducted

automatically from the customer$$s credit card. The customer will receive a confirmation

sent to the customer's cell phone number about the purchase.

Customers can use the app to track the purchase history based on different criteria $($e$.$g$.,$

time, amount, category of food purchased$).$ In addition, Tracker should allow customers

to search discounts and display any discount barcode for it to be scanned when a

purchase is made.

The search discount feature within the Tracker app facilitates customers in discovering

available discounts tailored to their preferences. Users can utilize this functionality to

explore discounts based on specific criteria, such as keywords or product categories.

After entering relevant search parameters, the app retrieves and presents a list of

matching discounts for users to browse. Upon selecting a discount from the list, users can

access detailed information, including terms and conditions. If applicable, the app

generates and displays a barcode linked to the chosen discount, which users can present

during checkout to avail of savings. Customers may want to share discounts they find

with their contacts, such as friends or family. In this case, the Tracker app would

$3$

facilitate the sharing process by sending the discount information to the chosen

recipient$($s$).$ The system keeps track of which discounts were shared with whom, creating

a history of sharing activities. After the discount has been shared successfully, the app

would provide a confirmation message to the user.

Using their name and employee ID$,$ Hot Hangout staff members can access Tracker to

download customer purchase information and use an analytical tool to discover customer

purchase preferences and patterns. The information is then used to develop promotions

and marketing campaigns. The store then pushes the promotions to Tracker from which

customer can view details of each promotion such as the promotion code, start date, end

date, and description.

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