Book borrowing and returning system_data flow diagram
2024-11-22 18:29:25 1 Report
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Outline/Content
Library database
Borrow documents
Return receipt
Library borrowing and returning system
Level 0 data flow diagram
Penalty notice
2.4 Return the book successfully
1.3 Borrowing books successfully
2.1 Read book records
Borrowing list
2.3 Fines
Returning books processing
reader
Enter the book list
1 Borrowing processing
1.2 Check if the borrower has exceeded the limit
Library staff
Book Information
Return book list
Reader Profile
Top-level data flow diagram
Return date
3 Maintenance management
Library card
Borrowing Slip
Refuse to lend books
Borrowing voucher
Level 1 data flow diagram
Refuse to borrow books
Maintenance information
Borrowerinformation
Certificate Application Form
2.2 Check if it is overdue
1.1 Check if the library card is valid
Collect
Collect
Collect
Collect
Collect
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