comp 4339 Software analaysis and design

COMP 4339 – Software Design & AnalysisFALL 2022
Assignment 3
Case Scenario
The EyesHaveIt.Com Book Exchange is a type of e-business exchange that does business entirely
on the Internet. The company acts as a clearing exchange for both buyers and sellers of used books. For a
person to offer books for sale, he/she must register with EyesHaveIt. The person must provide a current
physical address and telephone number as well as a current e-mail address. The system will then maintain
an open account for this person. Access to the system as a seller is through a secure, authenticated portal.
A seller can list books on the system through a special Internet form. Information required includes all of
the pertinent information about the book, its category, its general condition, and the asking price.
A seller may list as many books as desired. The system maintains an index of all books in the
system so that buyers can use the search engine to search for books. The search engine allows searches by
title, author, category, and keyword. People wanting to buy books come to the site and search for the
books they want. When they decide to buy, they must open an account with a credit card to pay for the
books. The system maintains all of this information on secure servers.
When a request to purchase is made, along with the payment, TheEyesHaveIt.com sends an email notice to the seller of the book that was chosen. It also marks the book as sold. The system maintains
this as an open order until it receives notice that the books have been shipped. After the seller receives
notice that a listed book has been sold, he/she must notify the buyer via e-mail within 48 hours that the
purchase is noted. Shipment of the order must be made within 24 hours after the seller sends the
notification e-mail. The seller sends a notification to both the buyer and TheEyesHaveIt.com when the
shipment is made.
After receiving notice of shipment, TheEyesHaveIt.com maintains the order in a shipped status.
At the end of each month, a check is mailed to each seller for the book orders that have been in a shipped
status for 30 days. The 30-day waiting period is to allow the buyer to notify TheEyesHaveIt.com if the
shipment does not arrive for some reason, or if the book is not in the same condition as advertised.
The buyers can, if they want, enter a service code for the seller. The service code is an indication
of how well the seller is servicing book purchases. Some sellers are very active and use
TheEyesHaveIt.com as a major outlet for selling books. So, a service code is an important indicator to
potential buyers.
Based on the previous set of requirements, the use case diagram is as follows:
Register
List a book
Seller
Notify shipment
made
Search for book
Notify seller
about purchase
–
Open account –
Send check to
seller
Buyer
EyesHaveIt Employee
Purchase a book
Enter problem with
purchase
Enter satisfaction
code
Question 1
Develop a fully developed description of the use cases:
and
Search for a book
Use Case Name:
Scenario:
Triggering Event:
Brief Description:
Actors:
Stakeholders:
Preconditions:
Postconditions:
Flow of Activities:
Actor
Exception
Conditions:
System
List a book
Use Case Name:
Scenario:
Triggering Event:
Brief Description:
Actors:
Stakeholders:
Preconditions:
Postconditions:
Flow of Activities:
Actor
Exception
Conditions:
Question 2
Draw a System Sequence Diagram for each use cases:
and
Paste your two diagrams here
Note:
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Please, use Visual Paradigm.
Diagrams created by any other tool will not be accepted.
Assignment details are not necessary to lead to the same solution found online.
Do not cheat! The possibility of having two similar diagrams is 0%.
Before submitting your assignment, delete all notes highlighted in red.
System