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LOVELY

PROFESSIONAL

UNIVERSITY DESIGN PROBLEM

CSE364

NAME : NITIN SRIVASTAVAReg. No. : 10904052Roll No. : RK1904A06

Section : K1904

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ONLINE AIRLINE

TICKET BOOKINGSYSTEM

DEFINITIONJET Airways are one of the private airlines in India, which caters large

number of people. It has about 10 planes in which 5 serves for domestic and

5 for international. As the company is doing good business, they want to

make the reservation system as a computerized Airline Reservation System.

The plane details, their departure and arrival time, source and destination areas follows.

S.No Plane Source Destinatio

n

Departure

Time

Arrival

Time

DOMESTIC

1 JET1D01 Chennai Mumbai 10.00 11.00

2 JET2D02 Kolkatta London 12.00 13.00

3 JET3D03 Delhi Bangalore 11.15 12.30

4 JET4D04 Mumbai London 13.30 14.305 JET5D05 London Delhi 15.30 17.00

INTERNATIONAL

1 JET01 Mumbai London 00.30 10.30

2 JET02 Delhi Paris 03.20 13.20

3 JET03 London Colombo 19.30 20.30

4 JET04 Mumbai Los Angles 05.00 22.00

5 JET05 Delhi Dubai 04.00 11.00

The system should get the passengers details such as name, age,

address, passport number, which plane he/she wants to travel and the

destination point.

The software should provide search options. If the source point and

destination point are entered, then all the planes traveling between these

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planes with arrival and departure time should be displayed for the sake of

passenger.

The software should have option for checking availability of the

tickets. If the ticket is not available, a short message will appear as ticket

unavailable will be displayed to the passenger. The software should have

facility to cancel the reservation of the ticket and also can modify the

changes if the customer has some changes in his reservation ticket.

A small statement regarding cancellation should be displayed to

passenger after cancellation of their tickets. The ticket which is cancelled is

then added up to the available ticket column. The airline software should

have the facility to print the ticket with all the details such as data, name of

the plane, destination with timings and the class along with the passenger

details.The price list of the ticket is also put up according to the class the

passenger prefers to travel.

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1. Design a SRS of the system.

Contents1. INTRODUCTION 7

1.1 PURPOSE1.2 SCOPE

1.3 DEFINITIONS, ACRONYMS, AND ABBREVIATIONS

1.4 REFERENCES1.5 OVERVIEW

2. OVERALL DESCRIPTION .8

2.1 PRODUCT PERSPECTIVE2.2 PRODUCT FUNCTIONS

2.3 USER CHARACTERISTICS

2.4 GENERAL CONSTRAINTS

2.5 ASSUMPTIONS AND DEPENDENCIES

3. SPECIFIC REQUIREMENTS 113.1 EXTERNAL INTERFACE REQUIREMENTS

3.1.1 USER INTERFACES3.1.2 HARDWARE INTERFACES

3.1.3 SOFTWARE INTERFACES

3.1.4 COMMUNICATION INTERFACES3.2 SOFTWARE PRODUCT FEATURES

3.2.1 FEATURE 1

3.2.1.1 PURPOSE3.2.1.2 STIMULUS/RESPONSE

3.2.1.3 ASSOCIATED FUNCTIONAL REQUIREMENTS

3.2.1.3.1 FUNCTIONAL REQUIREMENTS3.2.1.3.1.1 INTRODUCTION3.2.1.3.1.2 INPUTS

3.2.1.3.1.3 PROCESSING

3.2.2 FEATURE 23.2.2.1 PURPOSE

3.2.2.2 STIMULUS/RESPONSE

3.2.2.3 ASSOCIATED FUNCTIONALITY REQUIREMENTS3.2.2.3.1 FUNCTIONAL REQUIREMENTS

3.2.2.3.1.1 INTRODUCTION

3.2.2.3.1.2 INPUT

3.2.2.3.1.3 PROCESSING3.2.2.3.1.4 OUTPUT

3.2.3 FEATURE 3



3.2.3.3.1 FUNCTIONAL REQUIREMENTS

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3.2.3.3.1.2 INPUT

3.2.3.3.1.3 PROCESSING3.2.3.3.1.4 OUTPUT

3.2.4 FEATURE 4



3.2.4.3.1 FUNCTIONAL REQUIREMENTS3.2.4.3.1.1 INTRODUCTION

3.2.4.3.1.2 INPUT


3.2.4.3.1.4 OUTPUT3.4 DESIGN CONSTRAINTS

3.5 SOFTWARE SYSTEM ATTRIBUTES

3.5.1 RELIABILITY

3.5.2 AVAILABILITY

3.5.3 SECURITY

3.5.4 MAINTAINABILITY

3.5.5 PORTABILITY

3.6 LOGICAL DATABASE REQUIREMENTS

3.7 OTHER REQUIREMENTS4. INDEX .16

5. APPENDICES .16

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ONLINE AIRLINE TICKET BOOKING SYSTEM

SOFTWARE REQUIREMENTS SPECIFICATION

1. INTRODUCTION

1.1. PURPOSE

The main purpose of this software is to reduce the manual errors involved in

the airline reservation process and make it convenient for the customers to

book the flights as when they require such that they can utilize this software

to make reservations, modify reservations or cancel a particular reservation.

1.2 SCOPE

The name of the software is AIRLINE RESERVATION SYSTEM. This

software provides options for viewing different flights available with

different timings for a particular date and provides customers with the

facility to book a ticket, modify or cancel a particular reservation but it does

not provide the customers with details of cost of the ticket and it does not

allow the customer to modify a particular part of his reservation and he/she

can modify all his details.

1.3 DEFINITIONS, ACRONYMS AND ABBREVIATIONS

ARS-Airline Reservation System

LAN-Local Area Network

GUI-Graphical User Interface

OS-Operating System

RAM-Random Access Memory

MB-Mega Bytes

GB-Giga BytesMbps-Mega bits per second

HDD-Hard Disk Drive

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1.4 REFERENCES

The books and materials referred during the pre-development stages of the

project include

1. Software Engineering-A Practitioners Approach

By Roger S. Pressman

2. Software Engineering-By James Peters

1.5 OVERVIEW

The rest of the document deals about all the main features of this software

each will its purpose and its main functions. It also gives details about the

interface with other products and related functionality of each product.

2. OVERALL DESCRIPTION

2.1 PRODUCT PERSPECTIVE

The ARS software is an independent application. It is a self-contained

product. The system interfaces, user interfaces and hardware interfaces

related with this software are defined as follows.

2.1.1 System Interfaces

The client systems should be able to share the data available in the data basethrough the network connection.

2.1.2 User Interfaces

The screen formats and menu structure should be in such a way that even

have users will find it easy to use. The product must be use-friendly and very

inter-active. The functionality provided by the system like displaying error

messages should adapt itself to the different users of the software.

2.1.3 Hardware Interfaces

Nil

2.1.4 Software Interfaces

Name of the language: Visual Basics

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2.1.5 Communication Interfaces

There is an LAN used for communication among the different client systems

to be used.

2.1.6 Memory Constraints

The system would require disk space of 10 GB and a 256 MB HDD and 64

MB RAM for client systems.

2.1.7 Operation

The users can first make a reservation in a particular flight for a particular

date and time. The system provides the customer with a pin code which

gives him access to either make any changes in his reservation or cancel a

reservation. These must also be back up of data to enable any easy recovery

from any features.

2.1.8 Site Adaptive Requirements

The ARS software is an independent and self-contained product and no

modification are required to adapt to a particular installation.

2.2 PRODUCT FUNCTIONS

The major functions include

Providing flight details

Flight bookings for a particular destination, date and time and alsoproviding with a pin code.

Allowing the customer to modify or cancel his reservation provided

the correct pin code is given.

Displaying a report of the number of people flying in a particular

flight.

2.3 USER CHARACTERISTICS

No technical experience is required basic knowledge of handling system is

sufficient.

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2.4 CONSTRAINTS

Regulatory policies: It is a mandatory that no text book must be left

empty or contains insufficient data. Hardware limitations: There must be a 64 MB on board memory

Control functions: The software must be very user-friendly and

display appropriate error messages.

Interfaces to other applications: Not applicable.

Parallel operations: It must support many users simultaneously.

Reliability requirements: Data redundancy and use of special/blank

characters must be avoided.

Safety/security considerations: The application must be exited always

normally. Higher order language requirements: VB

2.5 ASSUMPTIONS AND DEPENDENCIES

It is assumed that the details of the cost of ticket are already known to the

customer. Future changes like providing different types of flights with

different classes like business class, economic class will allow the customers

to benefit from one facility.

2.6 APPORTIONING OF REQUIREMENTS

The necessity of providing options to customer to choose their seat or to

choose for economic or business class can be delayed until future versions of

the software are developed.

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3. SPECIFIC REQUIREMENTS

3.1 EXTERNAL INTERFACE REQUIREMENTS

3.1.1 User Interfaces

The interface must be easy to understand. The user interface includes

SCREEN FORMATS/ORGANIZATION: The introductory screen

will be the first to be displayed which will allow the users to choose

either of the two options, viewing flight detail or booking a ticket.

WINDOW FORMAT/ORGANIZATION: When the user chooses

some other option, then the information pertaining to that choice will

be displayed in a new window which ensures multiple windows to be

visible on the screen and the users can switch between them.

DATA FORMAT: The data entered by the users will be alpha

numeric.

END MESSAGES: When there are some exceptions raising error like

entering invalid details, then error messages will be displayed

prompting the users to re-enter the details.

3.1.2 Hardware Interfaces

The system must basically support certain input and output devices. Their

descriptions are as follows.

Name of Item Description of Purpose Source of Input/Description of output

Key board To accept data from

user like pin code,

personal details, flight

details

Source of Input

Printer To print the bookings

mode E.g.: Destination

chosen with date and

timings

Destination of Output

3.1.3 Software Interfaces

Not applicable since the product under considerations is an independent one.

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3.1.4 Communication Interfaces

Every client system connected through LAN establishes a communication

only with the server and not with any client system. An LAN of 10 Mbps is

used.

3.2 SOFTWARE PRODUCT FEATURES

3.2.1 FEATURE 1

The ability of the software is to provide the details of the flights available

and allow the customers to choose a particular destination and make a

reservation.

3.2.1.1 PURPOSE

The purpose of this is to enable the users to view the different flightsavailable so as to make it convenient for him to make a reservation.


Once the user chooses the particular option, the web pages

corresponding to that are to be displayed on the screen i.e., it will

display the different flights available to their respective destinations

and allow the customer to book a ticket.



Once the user makes a reservation, he must be provided with a

pin code.


The user must be provided with the required information within

10 seconds.

3.2.1.3.1.2 INPUTSThe user must enter the destination with date and timings and

must make reservation by giving his personal details like name,

address, age, gender, nationality.


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Recognizing the correct details are entered that a message is

displayed confirming his reservation and displays the pin code.

3.2.2 FEATURE 2

The software allows the user to modify an already existing reservation

made by the customer if in case there are any changes that are to be

modified in the reservations of the ticket.

3.2.2.1 PURPOSE

The purpose is to allow the customer to make any changes in his

personal details or flight booking details.


Once the user requests for changing his reservation, it must be

displayed on the screen prompting the customer to enter his pin code.

3.2.2.3 ASSOCIATED FUNCTIONALITY REQUIREMENTS


If the pin code provided by the customer does not match, then

would notify the person by displaying error messages.


The system will allow the customer to modify his reservation

provided correct pin code has been entered by him.

3.2.2.3.1.2 INPUT

The user should enter his pin code which gives him access to

modify his reservation.


The pin code is processed and checked for his validity. If it is

correct then the user can modify his reservation else an error

message will be displayed asking the user to enter the correctpin code number.

3.2.2.3.1.4 OUTPUT

Given the correct pin code, the user can now modify his

reservation. A new pin code will be generated for the

customers.

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3.2.3 FEATURE 3

The software allows the user to cancel an already existing reservation made

by the customer who has booked the ticket.

3.2.3.1 PURPOSE

The purpose is to allow the customer to cancel his reservation if not

required.


Once the user requests for canceling his reservation, it must be

displayed on the screen prompting the customer to enter his pin code.



If the pin code provided by the customer does not match, then it

would notify the person by displaying error messages.


The system will allow the customer to cancel his reservation

provided correct pin code has been entered by the customer.

3.2.3.3.1.2 INPUT

The user should enter his pin code which gives him access to

cancel his reservation.


The pin code is processed and checked for its validity. If it is

correct, then the user can cancel his reservation else an error

message will be displayed asking the user to enter the correct

pin code number.

3.2.3.3.1.4 OUTPUT

Given the correct pin code, the user can now cancel his

reservation.

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3.3 PERFORMANCE REQUIREMENTS

At any instant, a maximum of four nodes or users will be given accesssimultaneously.

Since the program handles multiple users, if more than one person

attempts to same date to the files stored in the data base, the program

will lock the data file using a 2-phase commit protocol to prevent

simultaneous access.

3.4 DESIGN CONSTRAINTS

Requires 256 MB on-board memory.

Based completely on Windows functionality platform.

The software should be portable and must be inaccessible to

unauthorized users.

3.5 SOFTWARE SYSTEM ATTRIBUTES

3.5.2 RELIABILITY

The factors needed to establish the software expected reliability are

The user inputs should be valid and within the given range.

Normal termination of the program.

3.5.2 AVAILABILITY

The factors guarantee the softwares availability includes proper termination

and correct input details. Also the resources used for the project

development are Microsoft Certified which speaks of its high quality

standards.

3.5.3 SECURITY

It must be ensured that access will be provided to the authorizedpersons through user ID and password.

Network security will be provided by the use of firewalls.

Checks can be performed at regular internals to ensure data integrity.

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3.5.4 MAINTAINABILITY

The software will be developed by implementing the concept of modularity

which in turn reduces the complexity involved in maintaining it. The

administrator should have a sound technical knowledge about maintaining

the software and further enhancements will be undertaken by the developer.

3.5.5 PORTABILITY

The application is portable which ensures its adaptability for use on different

computer terminals with different operating systems and standards.

3.6 LOGICAL DATABASE REQUIREMENTS

The system requires the use of text files to maintain the customers personaldetails and his booking details. An entity must be used to specify the various

departments and the seats available in them. This information will be used

frequently by the authorities for verification.

3.7 OTHER REQUIREMENTS

4. INDEX

5. APPENDICES

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UseCaseID: Search for Flights

Goal In Context: A customer wishes to search for available flights between two cities for the

chosen dates.

Scope: Airline Reservation System (ARS)

Pre-Condition: Actor has successfully navigated to the main options screen.Success End Condition: A list of flight matching the search criteria is presented.

Failed End Condition: A list of flight matching the search criteria is NOT presented.

Primary Actor: Customer

Trigger Event: Selects the "Search Flights" option.

Main Success Scenario

Step Actor Action Description

1 Customer Selects the "Search Flights" option.

2 ARS Displays a screen with input fields for source airport, destination airport, : tyof ticket (one way or round trip) and the departure and arrival date based on

choice of ticket type. Two-way ticket will force an arrival date to be entered.3 Customer Enters the all information and clicks the "Search" button.

4 ARS Displays a listing of all flights that match the customers input from step 3, ea

item in the list has an associated price and a "Book This Flight" link.

Scenario Extensions


1 Customer Selects the "Cancel" option.

2 ARS Displays the main options screen.

3 Customer Does not complete all the necessary fields.

4 ARS Redisplays the input fields from step 2 with the input data and a note stating

that certain required data is missing.

Scenario Variations


None

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UseCaseID: Purchase Ticket

Goal In Context: A customer wishes to purchase the ticket for a reserved flight.

Scope: Airline Reservation System (ARS)

Pre-Condition: Actor has successfully made a reservation as documented in the "Make

a Reservation" use case.

Success End Condition: A ticket has been purchased.

Failed End Condition: A ticket has NOT been purchased.

Primary Actor: Customer

Trigger Event: Selects the "Purchase Ticket" link from the list of options.

Main Success Scenario


1 Customer Selects the "Purchase Ticket" link from the list of options.

2 ARS Displays a screen with an input field for a reservation number.

3 Customer Enters a reservation number and clicks the "Submit" button.

4 ARS Displays the details of the reservation.

5 Customer Selects the "Purchase Ticket" option.

6 ARS Displays a screen with input fields for: a credit card number,

cardholder name, and credit card expiration date.7 Customer Enters a credit card number, the cardholder name and the credit card

expiration date and clicks the "Submit" button.

8 ARS Displays the main options screen. The message "Ticket Successfully

Purchased" is also displayed.

Scenario Extensions


3.a Customer Selects the "Cancel" option.

3.a.1 ARS Displays the main options screen.





7.b Customer Selects the "Use Credit Card on Record" option; this is illegal and

hence may have to go.

Scenario Variations


NONE

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DATA FLOW DIAGRAM:

LEVEL 0:

LEVEL 1(a):

LEVEL 1(b):

User ReservationAcceptthe

details

Passenger

Database

User AirlinereservationSystem

Reserve in

the file

Reservati

on

Displa

y

Cancellatio

n

UserCancellatio

n

Acceptthe

details

Passenger

Database

Cancel in

the file

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LEVEL 2:

ACTIVITY DIAGRAM

Activity diagram is another important diagram in UML to describe dynamic

aspects of the system.Activity diagram is basically a flow chart to represent

the flow form one activity to another activity. The activity can be described

as an operation of the system.So the control flow is drawn from one operation to another. This flow can be

sequential, branched or concurrent. Activity diagrams deals with all type of

flow control by using different elements like fork, join et

Branching

A branch specifies alternate paths takes based on some Boolean expression

Branch is represented by diamondBranch may have one incoming transition and two or more outgoing one on

each outgoing transition,you place a Boolean expression shouldnt overlap

but they should cover all possibilities.

UserDispla

y

ReadPassenger

details

Customerdatabase

Display in

tabular

form

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Forking and Joining

Fork

A fork represents the splitting of a single flow of control into two or more

concurrent

Flow of control.

A fork may have one incoming transition and two or more outgoing

transitions, each of which represents an independent flow of control.

Below fork the activities associated with each of these path continues in

parallel.

Join

A join represents the synchronization of two or more concurrent flows of

control.

A join may have two or more incoming transition and one outgoingtransition.

Above the join the activities associated with each of these paths continues in

parallel.

Swimlane:

Swimlanes are useful when we model workflows of business processes to

partition the activity states on an activity diagram into groups.

Each group representing the business organization responsible for those

activities,these groups are called swimlanes.

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ACTIVITY DIAGRAM FOR MAKING RESERVATION

Select Flight

Available

Submit Request

Not Available

Accepted Rejected

Payment

View Report

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ACTIVITY DIAGRAM FOR CHANGING RESERVATION

Cancel

Reservation

New reservation Get R efunded

Submit Request

Select F light

Accept Rejec t

View Report

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