Store
-ID int-bookID int-bookStatus-place String
+setID()+getDate()+getPageDate()+getOneDate()+addPlace()+modplace()+delplace()
0...n
1...*
1
1...n
Reserve
-ID int-readerID int-bookID int-reserveDate date\\-confirm Boolean
+setID()+getDate()+getBookID()
BorrowType
-borrowTypeID int-borrowTypeName String
+add()+delete()+query()
Borrow
-borrowID int-readerID int-bookID int-inDate date-outDate date
0...1
Fine
-ID String-borrow ID String
+setID()+getData()+getPageData()+addRule()+modRule()+delRule()+searchDate()+getOneDate()
0...*
Reader
-readerID int-readerName String-readerStatusreaderQuantity int
+add()+update()+delete()+lock()
Reader Type
-readerTypeID int-readerTypeName string-maxQuantity int-maxDay int-finePerDay double
+add()+delete()+update()+query()
Book Type
-bookType int-bookTypeName String
Librian
-lib ID int-libName String-lib Password int
+manageBook()+manageReader()+manageFine()+manageBorrow()+query()
Book
-bookID int-bookName String-pubID int-author-price-quantity
+add()+update()+delete()+querybyName()+querybyID()+querybyQuery()
