By Nadia Nahar

11/18/2014 1

• Component Level Design

– Library Circulation System

• Designing Conventional Component

11/18/2014 2

11/18/2014 3

11/18/2014 4

User

user_typeuser_namepassworduser_statuse-mail

authenticate()search()renew()booking()

Administrator

user_namepassworde-mail

configure()authenticate()

Librarian

user_namepassworde-mail

issue()retrieve()add()edit()delete()

Report

report_nointended_userdatereport_type

notifyUser()blockUser()

Item

item_typecall_numberitem_statusassigned_user

issueItem()retrieveItem()itemAvailability()

Fine

fine_typefine_amountassigned_userassigned_itemfine_rateborrowing_duration

generateReport()updateUser()calculateFineAmount()

11/18/2014 5

11/18/2014 6

DAO

insert()update()delete()select()

GUI

menu_itemsthemeelements

update()link()

DB Connect

connectionStringdatabaseNamedatabaseUserPassworddatabaseType

connect()

11/18/2014 7

11/18/2014 8

issue

retreive

Librarian

user_namepassworde-mail

selectUser()checkUserStatus()selectItem()checkItemStatus()show()updateItem()updateUser()selectUser()checkFine()selectItem() updateItem()updateUser()add()edit()delete()

DAOIssue

selectUser()checkUserStatus()selectItem()checkItemStatus()show()updateItem()updateUser()

DAORetreive

selectUser()checkFine()selectItem() updateItem()updateUser()

Librarian

user_namepassworde-mail

issue()retrieve()add()edit()delete()

11/18/2014 9

calculateFine

generateReport

Fine

fine_typegeneral_finespecial_finedestruction_fine

fine_amountassigned_user

GeneralSpecial

assigned_itemAvailableUnavailable

fine_rateborrowing_durationgetDuration()getItemType()getRate()calculate()getNotification()calculateFineAmount()getUser()acquireEmailAddress()sendNotification()updateUser()

DAOcalculateFine

getDuration()getItemType()getRate()calculate()

DAOgenerateReport

getNotification()calculateFineAmount()getUser()acquireEmailAddress()sendNotification()updateUser()

Fine

fine_typefine_amountassigned_userassigned_itemfine_rateborrowing_duration

calculateFineAmount()generateReport()updateUser()

11/18/2014 10

11/18/2014 11

1.userDetails := selectUser(userName)2.userStatus := checkUserStatus (user)

3.itemDetails := selectItem(itemName)4.itemStatus := checkItemStatus (item)

11/18/2014 12

1.userDetails := selectUser(userName)

3.itemDetails := selectItem(itemName)

2.Fine := checkFine(User)

11/18/2014 13

1.duration := getDuration(user,item)

3.fineRate := getRate(itemType)

2.itemType := getItemType(item)

11/18/2014 14

11/18/2014 15

issue

retreive

selectItem

<<interface>>issue

PassItemtoIssue()

selectUser

11/18/2014 16

issue

retreive

selectItem

<<interface>>retrieve

PassItemtoRetrieve()

selectUser

checkFine

11/18/2014 17

calculateFine

generateReport

getDuration

<<interface>>calculateFine

PassUserItemtoCalculateFine()

getFineRate

getItemType

11/18/2014 18

11/18/2014 19

Attribute Name Class Data Type/Data Structure

user_type user enum

user_name user,administrator,librarian string

password user,administrator,librarian string

user_status user enum

e-mail user,administrator,librarian string

report_no report int

intended_user report int

date report date

report_type report enum

11/18/2014 20

11/18/2014 21

11/18/2014 22

Input Item

Validate Input

retrieve

Arrange Alphabetically

Arrange by Arrival Date

Arrange by Category

show

arrangeType=Name

arrangeType=ArrivalDate

arrangeType=Category

11/18/2014 23

Select User

Select Item

Check Item Availability

Update Item,User

available

Not available

Check User Availability

active

blocked

11/18/2014 24

Select User

Select Item

Update User

Check Fine

no

yes Generate Report

Update Item

11/18/2014 25

• Date Source

– User Database

– Item Database

• Required Class

– DB Connect

– DAO

11/18/2014 26

DAO

insert()update()delete()select()

DB Connect

connectionStringdatabaseNamedatabaseUserPassworddatabaseType

connect()

11/18/2014 27

11/18/2014 28

Librarian

11/18/2014 29

Item

11/18/2014 30

Report

11/18/2014 31

11/18/2014 32

Central Processor

Database Server

Proxy Web Server

Remote PC

Control Panel Unit

Library PC http

Secure Communication

11/18/2014 33

• Graphical design notation

• Tabular design notation

• Program design language

11/18/2014 34

11/18/2014 35

Select User

Select Item

Check Item Availability

Update Item,User

available

Not available

Check User Availability

active

blocked

Select User

Select Item

Update User

Check Fine

no

yes

Generate Report

Update Item

Get Selection

issue retrieve

Conditions 1 2 3 4

User Status F T F T

Item Status F F T T

Actions

Issue Item

Don’t Issue

11/18/2014 36

Rules

Conditions 1 2

Check Fine F T

Actions

Retrieve Item

Fine Report

Rules

11/18/2014 37

Component Librarian:

The intent of this component is to manage the circulation of items of the library and also update item data.

Initialize all system ports and reset all hardware

select user(username)

contact with user class and get the details of an user specified by username

check user_status(user)

if user.status=“blocked”

return “user is blocked”

elseif user.status=“active”

return “user is active”

……………………………………………………………………

……………………………………………………………………………

11/18/2014 38