Library System

Build the use-case diagram for the following Library system use-case description

Use Case Name: Login

Actors: Basic User, C/heckout Clerk, Librarian

User accesses login Option

User enters username/password

Username/password verified by system

User logs into the system and is presented with top-level menu

Entry Condition:

None (This is the 1^st use case encountered)

Exit Condition:

User is given the 1^st page of the system for entering problems

Quality Requirements

Username/password should be verified within 3 seconds

Use Case: IncorrectLogin

Actors: Basic User, C/heckout Clerk, Librarian

Related Use-Case:

Extension-Of: Login. Extension Point occurs at Step 3

The system accepts the form, determines the username or password invalid, and

requires the user to re-enter the username/password

The user re-enters the username/password

System verifies username/password if correct. Otherwise step 2 is repeated.

Exit Condition:

User is given the 1^st page of the system for entering problems

Use Case Name: Search for Items by Author

Actors: Basic User, C/heckout Clerk, Librarian

User accesses Search Option

User enters author name

System returns list of all titles associated with the entered author

Entry Condition:

Basic User is logged into the system

Exit Condition:

User is given a list of all titles associated with the entered author

Quality Requirements

Search results should return within 10 seconds

Use Case Name: Check User Information

Actors: Basic User, C/heckout Clerk, Librarian

User accesses User Account Information Option

System returns fields pertaining to the users account information along with a list of

all books currently checked out by the user.

User modifies any of the account information as desired

Entry Condition:

Basic User is logged into the system

Exit Condition:

User has account information displayed with options to change any of the fields

Quality Requirements

User information results should return within 2 seconds

Use Case Name: Check out

Actors: Checkout Clerk, Librarian

User access Check Out Option

System displays Check Out Fields

User enters borrowers information along with items information

System updates the borrowers account with the item

Entry Condition:

Check Out Clerk is logged into the system

Exit Condition:

The Borrowers account is updated by adding item

Use Case Name: Check in

Actors: Checkout Clerk, Librarian

User access Check In Option

System displays Check In Fields

User enters borrowers information along with items information

System updates the borrowers account by removing the item

Entry Condition:

Check Out Clerk is logged into the system

Exit Condition:

The Borrowers account is updated by removing the item

Use Case Name: Record that a fine has been paid.

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Actors: Checkout Clerk, Librarian

User access Pay Fine Option

System displays Pay Fine Fields

User enters borrowers information along with amount

System updates the borrowers account by removing the fine

Entry Condition:

Check Out Clerk is logged into the system

Exit Condition:

The Borrowers account is updated by removing the fine

Use Case Name: Add New Borrower

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Actors: Librarian

User access Add New Borrower Option

System displays Add New Borrower Fields

User enters borrowers information

System creates a new borrowers account

Entry Condition:

Librarian is logged into the system

Exit Condition:

A new Borrowers account is created

Use Case Name: Add a new item to the collection

Actors: Librarian

User access Add New Item Option

System displays Add New Item Fields

User enters the new items information

System stores the new items information

Entry Condition:

Librarian is logged into the system

Exit Condition: