Requirements
Specification
SJSU Online Library System
November 20, 2001
Software
Development
Inc.
JVD
Joel Frank, Project Manager (Sections V and VI)
Hours Worked:
Signature
Valerie Stanton, Software Engineer (Sections III and IV)
Hours Worked:
Signature
Dani Sablan Chalmers, Software Engineer (Sections I and II)
Hours Worked:
Signature
S o f t w a r e
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Table of Contents
I
INTRODUCTION
SCOPE AND PURPOSE
OVERALL SYSTEM DESCRIPTION
SOFTWARE PROJECT CONSTRAINTS
STRUCTURE OF DOCUMENT
3
3
3
3
3
II SYSTEM ARCHITECTURE
5
III INFORMATION DESCRIPTION
7
ENTITY RELATIONSHIP DIAGRAMS
DATA FLOW DIAGRAMS
IV FUNCTION DESCRIPTION
FUNCTIONAL PARTITIONING
FUNCTIONAL DESCRIPTION
V NAVIGATION FLOW AND BEHAVIOR DESCRIPTION
NAVIGATION FLOW
VI VALIDATION AND CRITERIA
PERFORMANCE BOUNDS
CLASSES OF TESTS
7
9
18
18
18
22
22
30
30
30
VII BIBLIOGRAPHY
31
VIII
APPENDIX
32
MAJOR FUNCTION SUMMARY
32
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Introduction
Scope and Purpose
This document covers the requirements needed for a successful Online Library System. These
requirements have been specified by the customer and have been validated by the project
manager. The documentation will provide a basis for the system design stage.
Overall System Description
This system will allow students and faculty to access SJSU’s library system remotely via the
internet, as well as through the library’s local area network (LAN). Students and faculty will login
by providing their user name, ID and PIN. Once logged in, students and faculty can perform
media searches, reserve media, check their account status, and pay late due fees (if needed).
Library staff will have all student/faculty account options as well as implementing checkin/check-out functions, user account modification, and database report generation.
Administrative personnel will have access to all levels of user functions including the following
additional database maintenance functions: top-level user account modification, user access
control, and top-level database modification. The administrator will be able to logon via the
LAN connection or will be able to logon to the actual server. As account management, the
administrator can update, create, or delete student, library staff, or administrator accounts.
The system will provide an interface tailored to each user type.
Software Project Constraints
•
•
•
•
Administrator interface must run on Windows 98 or a more current operating system
Student interface must support Internet Explorer 5.0 and up
Student interface must support Netscape Navigator 5.0, or Netscape Communicator 4.0
and up
The database and application server must run on Windows 2000 on a Dell Poweredge
8450 as outlined in the project plan
Structure of Document
System Architecture
• This section contains the diagrams representing the architecture context (simple and
detailed views), as well as the architecture flow.
Information Description
• This section includes the Entity Relationships Diagrams describing the relationships
between the various the user accounts and throughout the complete system. The Data
Flow Diagrams for the whole system are also included.
Function Description
• This section includes the diagram for functional partitioning, as well as detailed
descriptions for each level of functions.
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Behavior Description
• This section has detailed state diagrams for students, faculty, library staff, and the
administrator. Each diagram is followed with tables explaining the associated Events
and Actions.
Validation and Criteria
• This section includes the performance bounds, the classes of tests that will be performed,
and any other special considerations.
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System Architecture
User Interface
Process &
Control
Functions
Input
(Media
Access
&
Credit Card
Payment)
Output
(Query Results,
Reports, &
Credit Card
Payment
Verification)
Maintenance & Account Management
Figure 1: Architecture Context Diagram
Students
and
Faculty
Library
Staff
Administrator
Internet
Browser
Internet
Browser
SJSU Online
Library System
LAN
Connection
LAN
Connection
Credit Card
System
(for late fees)
Credit Card
System
(for late fees)
Access
Control
Media
Management
Account
Management
Figure 2: Architecture Context Diagram (Detailed View)
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Students
& Faculty
Internet
Brow ser
Login
Library
Staff
Main Menu
(All Users)
Administrator
Staff Menu
(Staff &
Admin.)
Admin. Menu
(Admin. only)
LAN
Connection
LAN
Connection
Database
System
(Media
Resoures,
Account
Info,
& Late
Fee Info)
Credit Card
System
Internet
Brow ser
Media
Search
Check In/
Check Out
Reserve
Media
User
Accounts
Account
Status
Generate
Reports
Late Fee
Payment
Media
Management
Credit Card
System
Account
Management
Access
Control
Figure 3: Architecture Flow Diagram
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Information Description
Entity Relationship Diagrams
is a
Student
see detail
Address
Email Address
Phone No.
Account Status
set up
User Account
is a
User Name
User ID
PIN
User Type
Library Staff
Email Address
Extension
Position
manages
set up
Faculty
is a
see detail
see detail
Office
Email Address
Extension
Account Status
is a
Administrator
see detail
Email Address
Extension
Figure 4: Entity Relationship Diagram – User Accounts
The data object USER ACCOUNT contains four types of users: STUDENT, FACULTY, LIBRARY STAFF,
and ADMINISTRATOR. All of these accounts type have an inheritance relationship with the USER
ACCOUNT data object.
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Resources
Borrowed
Resources
Reserved
Title
Date due
Title
Expected availability
displays
displays
Late Fee
Title
Date due
Fee ow ed
Make payment
Account
Status
displays
pays
checks
Media reserved
Media checked out
Late fees
provides
checks
Students
is a
is a
setup
Title
Author
Subject
Locator ID
Index no.
ISBN
borrows/
reserves
searches
10
Library Staff
is a
check in/
check out
setup
searches
Media Resources
is a
25
Availability
status
borrows/
Date out
reserves
Date due
Checked out to
Reserved by
Magazine/
Periodical
Publication
Issue date
Shelf location
Microfilm reel no.
Faculty
is a
is a
Administrator
is a
User Account
Book
manages
Multi-media
Title
Subject
Year of release
Locator ID
Index no.
manages
restricts
Access
Control
manages
Figure 5: Entity Relationship Diagram – Complete System
MEDIA RESOURCES is the central data object and has objects related by both inheritance and
association. The data objects BOOKS, MAGAZINES/PERIODICALS, and MULTI-MEDIA are all types
of MEDIA RESOURCES (inheritance). All other data objects are related to MEDIA RESOURCES by
association.
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Data Flow Diagrams
When examining an existing information system or analyzing the information that is going to be
designed, it is important to recognize what the data is, where the data comes from, how it
passes from one point to another within the information system, and how it will be used by the
intended audience or user. The following data flow diagrams (DFDs) represent the movement of
data within the system. They concentrate less on the actual functions and data constructs of
programmers and more on the general processes inherent to the overall system. We started at
the top of the system and moved deeper into the processes to the underlying database tables.
The amount of detail specified in this document will include a level two representation for most
functions and a level three where necessary.
All diagrams include references to additional levels when applicable. Expanded functions are
referenced using numbered tabs, which provide the corresponding diagram number.
LEVEL 0
Diagram 1
SJSU
Library
System
User ID
Fees Due
Banking System for
Credit Card
Transactions
2,
Web-based Interface
(Internet Browser or
LAN Connection)
SJSU Online
Library System
9,
13
User Name
User ID
PIN
Database
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LEVEL 1
Diagram 2
Student/Faculty Login
User ID
User T ype
From Level 0
Internet Brow ser/
LAN Connection
Student/
Faculty
Login
1
Display
Main Menu
16
Verifi cati on
User T ype
User Name
User ID
PIN
Menu
Selection
Database
Media
Search
3
Query
5
Resource
Info
Account
Status Check
User
ID
Account
Info
Database
LEVEL 2
Diagram 3
Media Search
2
4
Media
Search Menu
Query
Display
Result
Data
Resource
Info
Search for
Resource
Database
Result
Display
"No Matches"
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NULL
Result
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LEVEL 3
Diagram 4
Media Reservation
Media
Reservation
3
Select
Resource
User Emailed
when
Resource i s
Available
Flag
Display
Confirmation
Flag
Database
LEVEL 2
Diagram 5
Account Status Check
2
Check Status
Menu
Menu
Selection
User ID
Display T ype
6, 7, 8
Display
Results
Database
Results
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LEVEL 3
Diagram 6
Late Fees Due/Payment
User ID
Display
Fees Due
5
Database
New
Balance
New
Balance
User ID
Credit Card Info
Credit Card
Payment
Display
Error
Credit Card
Info
Flag
1
LEVEL 3
LEVEL 3
Diagram 7
Media Checked Out
Diagram 8
Media Reserved
User ID
User ID
5
Display Media
Borrow ed
Database
5
Display Media
Reserved
Resource
Info
Resource
Info
Display Media
Due Date
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Database
Media
Status
Display
Availability Date
Media
Status
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LEVEL 1
Diagram 9
Library Staff Login
User ID
User T ype
From Level 0
Internet Brow ser/
LAN Connection
Library Staff
Login
1
Display
Main Menu
16
Verification
User Type
User Name
User ID
PIN
Menu
Selection
Database
10
User Account
Setup
User Info
Media
Checkin/Checkout
11
User
Account
Resource
Index No.
Report
Generation
12
Resource
Status
Change
Query
Report
Database
LEVEL 2
Diagram 10
User Account Set-up
Menu
Selection
9
User Account
Set-up Menu
Menu
Selection
Menu
Selection
Update
User Account
Fl ag
User ID
User Info
Create
User Account
Delete
User Account
User ID
Flag
User ID
User Info
Flag
Database
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LEVEL 2
Diagram 11
Media Checkin/Checkout
Menu
Selection
9
Media
Checkin/Checkout
Display
Menu
Selection
Medi a
Checkin
Flag
Media
Checkout
Index No.
User ID
Index No.
User ID
Flag
Database
LEVEL 2
Diagram 12
Report Generation
9
Reports
Menu
Print
Report
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Menu Selection
Database
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LEVEL 1
Diagram 13
Adm inistrator Login
User ID
User T ype
From Level 0
Internet Brow ser/
LAN Connection
Administrator
Login
1
Display
Main Menu
16
Verifi cati on
User T ype
User Name
User ID
PIN
Menu
Selection
Database
14
Media
Management
Resource
Update
Resource
Info
Access
Control
16
User
T ype
Account
Management
17
Level
of
Access
User Info
User
Account
Database
LEVEL 2
Diagram 14
Media Managem ent
Menu
Selection
13
Media
Update Menu
Menu
Selection
Menu
Selection
Update
Media
Flag
Delete
Media
Index No.
15
Flag
Index No.
Resource Info
Add New
Media Resource
Resource
Info
Flag
Database
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LEVEL 3
Diagram 15
Media Addition
14
Add New Media
Resource
Resource
Info
Flag
Flag
Assign Unique
Index No.
Database
Index No.
LEVEL 2
Diagram 16
Access Control
Return to
Login
Display Error
2, 9, 13
Access
Control
Display
Main Menu
User Info
Verification
Fail ure
User Info
User
Verification
Database
Flag
Fl ag
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Allow
Student/Facul ty
Level Access
Flag
Allow
Library Staff
Level Access
Flag
Allow
Admini strator
Level Access
Flag
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LEVEL 2
Diagram 17
Account Management
Menu
Selection
13
Staff Account
Set-up Menu
Menu
Selection
Menu
Selection
Update
Staff Account
Flag
Staff ID
Staff Info
Create
Staff Account
Delete
Staff Account
Staff ID
Flag
Staff ID
Staff Info
Flag
Database
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Function Description
Functional Partitioning
SJSU Online Library System
Login
Students &
Faculty
Media
Search
Media
Reservation
Library
Staff
Account
Status
Check
Student/
Faculty
Account
Update
Media
Late Fees Media
Checked Reserved
Due
Out
(students
only)
Administrator
User
Account
Set-up
Media
Report
Media
Check In Check Out Generation
Student/
Faculty
Account
Creation
Student/
Faculty
Account
Deletion
Media
Update
Media
Management
Media
Addition
Access
Control
Account
Management
Media
Deletion
Account Account Account
Update Creation Deletion
Figure 6: Tree Diagram with Horizontal and Vertical Partitioning
Functional Description
Login Function (Shared Function)
This function is both for security and to control the user’s level of access. This function requires
the user’s name, ID, and PIN. The user type is managed by the access control function. The
system will verify that the user name, ID, and PIN are all correct before allowing access to the
online library system. If the information is not correct, the user will receive an error message
requesting that the user try again. With a correct login, the user will be taken to the appropriate
menu. The student and faculty users will be able to login from any machine using an internet
browser or from within the library using the LAN connection. The library staff will login via the
library’s LAN. The administrator will be able to login via the LAN connection or, for data
management operations, the administrator will be able to logon to the actual server. Access
time for account validation and determination of user access is expected to be no more than
one second via the LAN connection and no more than five seconds using a remote internet
browser. This time will be longer on older machines with slower modem speeds.
Media Search Function (Shared Function)
The media search function will search the media database for books, magazines/periodicals,
and multi-media. The user can search for a book by title, author, subject, or ISBN. Magazines
and periodicals can be searched by publication and issue date only. A separate system is
already in place for specific article searches and will not be linked to the main online library
system. Multi-media searches can be performed either by title or subject. This function will return
and display all items that match the query criteria. Access time for this function is expected to
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be no more than three seconds via the LAN connection and no more than ten seconds using a
remote internet browser. This time will be longer on older machines with slower modem speeds.
Media Reservation Function (Student/Faculty Function)
The media reservation function allows the user to reserve media resources that are currently
checked out. When the user performs a search, the availability information for the resource will
also be displayed. The screen will display the resource status, the expected availability date,
and if the book is already on reserve for another student or faculty member. The user will have
the option to reserve the resource by selecting the reserve resource field. The student will
automatically be notified by email when the resource is available. Only books and multi-media
will be accessible for reservation. Magazines and periodicals can only be viewed in the library
and are not available for check out. A student will not be allowed to have for than ten
resources on reserve at one time. An error message will be displayed if the user tries to exceed
this limit. Faculty may have up to 25 resources on hold. Access time for this function is expected
to be no more than three seconds via the LAN connection and no more than ten seconds using
a remote internet browser. This time will be longer on older machines with slower modem
speeds.
Account Status Check Function (Student/Faculty Function)
The account status check will allow users to check the status of their library account. When this
function is selected it will provide the following three options: view all resources currently
checked out by the user, all resources on reserve, and a check for overdue fee. If the user
selects resources borrowed, the title of each resource and the respective due date will be
displayed. The resources reserved option will provide each title reserved by the user including
the expected availability date. Only student accounts will include an overdue fee check;
overdue fees will not be assessed for faculty. If the student selects this option, there will be an
option to pay overdue fees online with a credit card (see overdue fee payment function).
Access time for this function is expected to be no more than three seconds via the LAN
connection and no more than ten seconds using a remote internet browser. This time will be
longer on older machines with slower modem speeds. Times may also be slower for credit card
payments as the credit card must be verified through the banking system.
Overdue Fee Payment Function (Student Function)
Students will be able to pay any overdue fees that may have been assessed using the overdue
fee payment function. The user’s balance will be displayed when this function is selected along
with a button labeled [pay fees]. The user will be prompted for a credit number, expiration
date, and the name on the card. The user will then submit the request, which will be processed
using an online banking system. The bank will verify the user’s information and return verification
of the transaction once it has been approved. An error message will be displayed if the
payment cannot be processed. The account balance field will be updated immediately. The
time for this function will vary depending on the volume of transactions being processed through
the online banking system, but the maximum transaction time is not expected to exceed 10
seconds.
User Account Set-up Function (Library Staff and Administrator Function)
Both library staff members and the system administrator will have access to this function,
although most student and faculty accounts will be set up by the library staff. There are three
subfunctions: account update, account creation, and account deletion. The menu will display
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these three options and the staff member will make the appropriate selection. The screen will
display fields for the user’s name, ID, PIN, user type, address, email address, and phone number.
The user will be given a default PIN and then prompted by the system for a new PIN on the first
login. After the new account information has been entered, the staff member will click UPDATE
button. If the account is being deleted, the staff member will select the DELETE button and the
system will require verification that the account should really be deleted before if will be
permanently removed from the system. Access time for this function is expected to be no more
than two seconds via the LAN connection.
Media Check in/Check out Functions (Library Staff Function)
The checkin/checkout functions will be performed by the library staff. All resources are identified
in the database by a unique index number. This number will be entered to select the media
resource. When checking out a resource, the availability status will change, the student/faculty
member ID number will be assigned to the resource, and a due date assigned. There is a limit to
the number of resources that can be checked out to a single user at any given time. The
students are limited to 10 media resources while the faculty can checkout up to 25 media
resources. Checking a book in will result in a change to the availability status and the
association with the student/faculty member will be removed. If the resource has been
reserved, an email will be generated with the availability status change. Access time for this
function is expected to be no more than two seconds via the LAN connection.
Report Generation Function (Library Staff and Administrator Function)
Both the library staff and administrator will be able to generate a variety of pre-defined status
reports as well as customized reports. The report function will include a complete resource status
report, a listing of all user accounts, and a list of all overdue fees owed. Reports may also be
generated using any combination of the search fields. The time required to generate reports is
expected to be no more than ten seconds via the LAN connection.
Media Management Function (Administrator Function)
Managing the media will include adding new resources to the database, updating resources
already in the database, and deleting resources. When adding a new resource to the
database, the system will automatically assign it a unique index number. This number will be
used for the checkin/checkout function to identify the media resource. The administrator will
have direct access to the database server and will perform most media management functions
while logged onto this server. This will result in immediate response times.
Access Control Function (Administrator Function)
The administrator will control the level of access for each type of user. Upon user login, the user
type will identify the level of access and trigger the appropriate menu display. The user
account validation will also be managed through this function. If the user name, user ID, and
PIN can not be verified by the system, the user will be returned to the login screen and an error
message will be displayed. If the user inputs an incorrect password on more than three
consecutive attempts, the access control function will disable the account. Reinstatement of
the account will require the assistance of a library staff member or the administrator. The
administrator will have direct access to the database server and will perform most media
management functions while logged onto this server. This will result in immediate response times.
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Account Management Function (Administrator Function)
All user accounts will be managed by the administrator. Although the library staff may set up
student/faculty accounts, only the administrator may set up library staff accounts and other
administrator accounts. There are three subfunctions: account update, account creation, and
account deletion. The menu will display these three options and the administrator will make the
appropriate selection. The screen will display fields for the library staff member’s name, ID, PIN,
user type, extension, position , and email address. The staff member will be given a default PIN
and then prompted by the system for a new PIN on the first login. After the new account
information has been entered, the administrator will click UPDATE button. If the account is being
deleted, the administrator will select the DELETE button and the system will require verification
that the account should really be deleted before if will be permanently removed from the
system. The administrator will have direct access to the database server and will perform most
media management functions while logged onto this server. This will result in immediate
response times.
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Navigation Flow and Behavior Description
Navigation Flow
Student Diagram
Login Failed
HTML
Browser
Display
Login
Menu
Success
Banking
System
Error
Validate
Payment
Display
Payment
Menu
Get
Balance
Get
Balance
Login
Display Main
Menu
Get Account
Info
Display
Account
Info Menu
Get Checked
Out List
Return
Request
Display
Checked
Out Media
Return Request
Logoff
Update
Balance
Return
Request
Return
Request
Get
Reserved List
Display
Media Info
Additional
Search Request
Reserve
Request
Search Request
Reserve
Request
Return
Request
Media Query
Display
Media
Search
Menu
Display
Reserve
Media
Menu
Return
Request
Additional
Reserve Request
Reserve
Confirmation
Reserve Request
Display
Reserved
Media
Events and Actions
Current State
Display Login
Menu
Event
Login
Input
User ID and
Password
Action
Validate Login
Display Main
Menu
Menu
Menu
Selection
Output Selection
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Next State
If login fails, loop
to current state.
Else Display Main
Menu
Selected State
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Current State
Display Media
Search Menu
Event
Media
Search
Input
Search
Parameters or
Return Request
Action
Query Database
using user defined
parameters
Display Media
Info
Menu
Menu
Selection
If reserve request,
update database.
Display Media
Reserve Menu
Reserve
Input Media
Parameters
Update database
to reflect user’s
request to reserve
media
Reserve
Confirmation
Menu
Menu
Selection
Output Selection
Display Account
Info Menu
Display Reserved
Media
Menu
Menu
Selection
No Input
Output Selection
Display Checked
Out Media
Get
Checked
Out List
No Input
Query database
for user’s checked
out list
Display Payment
Menu
Banking System
Menu
Menu
Selection
User’s payment
parameters
Output selection
to banking system
Validate user’s
payment
parameters
Confirmation
code from
banking
system
Update account
database to
reflect user’s
payment
Update Balance
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Get
Reserved
List
Payment
validation
Update
Balance
Query database
for user’s reserved
media list
Next State
Display media
info resulting from
query, or return
to Display Main
Menu.
Reserve
Confirmation, or
return to Display
Media Search
Menu
Reserve
Confirmation, or
return to Display
Reserve Media
Menu
Display Reserve
Media Menu, or
return to Display
Main Menu
Selected Page
Return to Display
Account Info
Menu upon
return request
Return to Display
Account Info
Menu upon
return request
Banking System
If success,
Update Balance.
Else, return to
Display Payment
Menu
Display Account
Info Menu
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Faculty Diagram
Login Failed
Display
Login
Menu
HTML
Browser
Logoff
Display
Account
Info Menu
Display
Media Info
Additional
Search Request
Return Request
Return
Request
Get Checked
Get Account
Out List
Info
Return
Display
Request
Checked
Return
Get
Out Media
Reserved List Request
Media Query
Display
Media
Search
Menu
Login
Display Main
Menu
Reserve
Request
Return
Request
Display
Reserved
Media
Reserve
Request
Search Request
Display
Reserve
Media
Menu
Return
Request
Additional
Reserve Request
Reserve
Confirmation
Reserve Request
Events and Actions
Current State
Display Login
Menu
Event
Login
Input
User ID and
Password
Action
Validate Login
Display Main
Menu
Display Media
Search Menu
Menu
Menu
Selection
Search
Parameters or
Return Request
Output Selection
Display Media
Info
Menu
Menu
Selection
If reserve request,
update database.
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Media
Search
Query Database
using user defined
parameters
Next State
If login fails, loop
to current state.
Else Display Main
Menu
Selected State
Display media
info resulting from
query, or return
to Display Main
Menu.
Reserve
Confirmation, or
return to Display
Media Search
Menu
Requirements Specification
S o f t w a r e
Development
Inc.
JVD
Current State
Display Media
Reserve Menu
Event
Reserve
Input
Input Media
Parameters
Action
Update database
to reflect user’s
request to reserve
media
Reserve
Confirmation
Menu
Menu
Selection
Output Selection
Display Account
Info Menu
Display Reserved
Media
Menu
Menu
Selection
No Input
Output Selection
Display Checked
Out Media
Get
Checked
Out List
Page 25 of 32
Get
Reserved
List
No Input
Query database
for user’s reserved
media list
Query database
for user’s checked
out list
Next State
Reserve
Confirmation, or
return to Display
Reserve Media
Menu
Display Reserve
Media Menu, or
return to Display
Main Menu
Selected Page
Return to Display
Account Info
Menu upon
return request
Return to Display
Account Info
Menu upon
return request
Requirements Specification
S o f t w a r e
Development
Inc.
JVD
Library Staff Diagram
Request
Failed
Login Failed
HTML
Browser
Display
Login
Menu
Create
Request
Login
Logoff
Generate
Report
Display
Account
Options
menu
Account
Request
Return
Request
Display
Report Menu
Request
Failed
Return
Request
Display Main
Menu
Report
Request
Return
Request
Return
Request
Display
Create
Account
Menu
Delete
Request
Media
Request
Display
Update
Account
Menu
Update
Request
Request
Failed
Display
Delete
Account
Menu
Display
Account
Change
Confirmation
Confirm
Change
Display
Report
Display Media
Menu
Checkout
Request
Request
Failed
Checkin
Request
Confirm
Change
Validate
Request
Display
Checkin
Menu
Request
Failed
Vaildate
Request
Display
Checkout
Menu
Validate
Request
Display Media
Change
Confirmation
Events and Actions
Current State
Display Login
Menu
Event
Login
Input
User ID and
Password
Action
Validate Login
Display Main
Menu
Display Account
Options Menu
Menu
Menu
Selection
Menu
Selection
Output Selection
Next State
If login fails, loop
to current state.
Else Display Main
Menu
Selected State
Output Selection
Selected State
Page 26 of 32
Menu
Requirements Specification
S o f t w a r e
Development
Inc.
JVD
Current State
Display Create
Account Menu
Event
Create
Account
Input
Account
parameters
Action
Query database
to validate
request
Display Update
Account Menu
Update
Account
Account
parameters
Query database
to validate
request
Display Delete
Account Menu
Delete
Account
Account
parameters
Query database
to validate
request
Display Account
Change
Confirmation
Display Media
Menu
Display Checkin
Menu
Confirm
Account
Change
Menu
User confirm
Update database
to reflect change
Next State
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
Display Account
Options Menu
Output Selection
Selected Menu
Checkin
Media
Menu
Selection
Media
parameters
Query database
to validate
request
Display
Checkout Menu
Checkout
Media
Media
parameters
Query database
to validate
request
Display Media
Change
Confirmation
Display Report
Menu
Confirm
Media
Change
Menu
User confirm
Update database
to reflect change
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
Display Media
Menu
Menu
Selection
Query database
to generate
selected report
Display Report
Display
Report
No Input
No Action
Page 27 of 32
Display report or
Display Main
Menu upon
return request
Return to Report
Menu upon
return request
Requirements Specification
S o f t w a r e
Development
Inc.
JVD
Administration Diagram
Request
Failed
Login Failed
HTML
Browser
Display
Login
Menu
Add
Request
Login
Display
Add
Account
Menu
Request
Failed
Logoff
Account
Request
Display Main
Menu
Return
Request
Media
Request
Display
Delete
Media
Menu
Add
Request
Request
Failed
Request
Failed
Display
Update
Media
Menu
Validate
Request
Confirm
Change
Display
Add Media
Menu
Update
Request
Delete
Request
Request
Failed
Delete
Request Display
Delete
Account
Menu
Return
Request
Display Media
Management
Menu
Display
Update
Account
Menu
Display
Update
Account
Management Request
menu
Display
Account
Change
Confirmation
Request
Failed
Vaildate
Request
Validate
Request
Validate
Request
Display Media
Change
Confirmation
Confirm
Change
Events and Actions
Current State
Display Login
Menu
Page 28 of 32
Event
Login
Input
User ID and
Password
Action
Validate Login
Next State
If login fails, loop
to current state.
Else Display Main
Menu
Requirements Specification
S o f t w a r e
Development
Inc.
JVD
Current State
Display Main
Menu
Display Account
Management
Menu
Display Add
Account Menu
Event
Menu
Input
Menu
Selection
Menu
Selection
Action
Output Selection
Next State
Selected State
Output Selection
Selected State
Add
Account
Account
parameters
Query database
to validate
request
Display Update
Account Menu
Update
Account
Account
parameters
Query database
to validate
request
Display Delete
Account Menu
Delete
Account
Account
parameters
Query database
to validate
request
Display Account
Change
Confirmation
Display Media
Management
Menu
Display Add
Media Menu
Confirm
Account
Change
Menu
User confirm
Update database
to reflect change
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
Display Account
Options Menu
Menu
Selection
Output Selection
Selected Menu
Add Media
Media
parameters
Query database
to validate
request
Display Update
Media Menu
Update
Media
Media
parameters
Query database
to validate
request
Display Delete
Media Menu
Delete
Media
Media
parameters
Query database
to validate
request
Display Media
Change
Confirmation
Confirm
Media
Change
User confirm
Update database
to reflect change
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
If request valid,
Display Change
Confirmation.
Else loop to
current state
Display Media
Menu
Page 29 of 32
Menu
Requirements Specification
S o f t w a r e
Development
VI
Inc.
JVD
Validation and Criteria
Performance Bounds
Response Time
The system shall respond to any change request within three seconds, while query requests shall
be completed in no more than ten seconds. In addition, the time required for either of these
events will not be dependant on the number of users connected to the system. These
requirements will be achieved by designing the server platforms with the capability to
accommodate four times the maximum number of users during peak access time periods.
Reliability
System up time shall be no less than 98%. This will be achieved by the redundant server
hardware platform implementation, which will facilitate, at a minimum, one server platform
being on line during maintenance, scheduled and unscheduled.
Classes of Tests
Functionality
This set of tests will verify system functionality is operational and meeting design criteria.
Performance
This set of tests will verify that the system is operating within the limits set in the Performance
Bounds Section above.
Reliability
This set of tests, in conjunction with historical data, will allow overall system up time to be
evaluated and compared to the specification set in the Performance Bounds Section above.
Page 30 of 32
Requirements Specification
S o f t w a r e
Development
VII
Inc.
JVD
Bibliography
Pressman, Roger S. Software Engineering - A Practitioner's Approach. Fifth edition. The McGraw-Hill
companies, Inc.
Barker, Richard. CASE Method Entity Relationship Modeling. Addison-Wesley.
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Requirements Specification
S o f t w a r e
Development
Inc.
JVD
VIII Appendix
Major Function Summary
Login Function (Shared Function) – provides security and to control the user’s level of access.
Media Search Function (Shared Function) – search the media database for books,
magazines/periodicals, and multi-media
Media Reservation Function (Student/Faculty Function) – allow users to reserve media resources
that are currently checked out
Account Status Check Function (Student/Faculty Function) – allow users to check the status of
their library account
Overdue Fee Payment Function (Student Function) – allow users to pay overdue fees through
online banking system
User Account Set-up Function (Library Staff and Administrator Function) – allow library staff to
add, delete, and update user accounts
Media Check in/Check out Functions (Library Staff Function) – allow library staff to check media
in and out
Report Generation Function (Library Staff and Administrator Function) – allow library staff and
administrator to generate reports
Media Management Function (Administrator Function) – allow administrator to add, delete, and
update media resources
Access Control Function (Administrator Function) – controls the users level of access and
provides user verification
Account Management Function (Administrator Function) – allow administrator to add, delete,
and update library staff accounts
Page 32 of 32
Requirements Specification