Airline reservation system
AIRLINE RESERVATION SYSTEM
SVTH: Nguyễn Thành Cô ng, Nguyễn Thành Cô ng,
Nguyễn Văn Toản, Nguyễn Mạnh Tiến,
Đào Thị Thu Thủy, Trịnh Thu Trang
GVHD: ThS Nguyễn Đình Trần Long
Tó m tắt- Năm 2021, với sự trỗi dậy mạnh mẽ của cá c ngô n ngữ lập trình web như Python,
javascript, và Typescript, java vẫn giữ một vị trí rất ổn định và được sử dụng trong nhiều dự á n lớn
trên thế giới. Ứng dụng web Java là một tập hợp các tài nguyên động (chẳng hạn như Servlet, Trang
JavaServer, cá c lớp và lọ Java) và các tài nguyên tĩnh (các trang và hình ảnh HTML). Trong bài viết
này, nhó m phá t triển sẽ thảo luận về Java như là khung phát triển cho Hệ thống đặt chỗ hàng khô ng
và giải thích cách nó được á p dụng trong quá trì nh triển khai lập trì nh.
Abstract- In 2021, With the strong rise of web programming languages such as Python,
javascript, and Typescript, java still holds a very stable position and is used in many major projects
around the world. A Java web application is a collection of dynamic resources (such as Servlets,
JavaServer Pages, Java classes and jars) and static resources (HTML pages and pictures). In this
article, the development team will discuss Java as the development framework for the Airline
Reservation System and explain how it is applied during the programming implementation.
Keyword: Python, Javascript, TypeScript, Java, Servlet, JavaServer Pages, Java classes, jars,
HTML pages, Airline Reservation System
1. Introduction
Traveling around the world is no longer as daunting as it once was, thanks to advances
in science and technology, and flying is now one of the most common forms of transportation.
In the late 1950s, the airline reservation system was adopted as a comparatively
straightforward standalone system for managing aircraft inventory and preserving flight
schedules. The modern airline booking system is a collection of products aimed at providing a
system that facilitates multiple airline management activities while also serving the needs of
passengers from the time of initial booking to the end of the flight. Online flight booking has
many benefits: less time and effort to get to the check-in place, quick check-in without
waiting, bookings and cancellations also just got much easier, but not all flight booking
systems have a modern, clear and concise user-friendly interface.
Intending to solve this problem, the aim of this project is to develop an airline booking
system that allows travelers to request all flight details based on their destination using the
Java language. The interface is reasonably designed, with high visual efficiency, user-friendly
and quickly and accurately synthesizes flight and fare information. Users can get information
about time, cost and other factors at the same time and at the same place. All available
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airlines, timetables and prices are displayed. The website will use the MySQL Database to
store the latest flight information, customer information as well as information on the latest
airline fares and ticket status. The following parts of this paper will (1) give an overview of
using Java in developing web applications, (2) analyze the requirements for the Airline
Reservation System, (3) demonstrate the implementation of the application, and (4) evaluate
the outcome of the development process as well as suggest potential improvements.
2. Main Content
2.1. Airline reservation system
2.1.1. What is Airline reservation system ?
(PSS), which are applications supporting the direct contact with the passenger.
reservation system is used for the reservations of a particular airline and interfaces with a
global distribution system (GDS) which supports travel agencies and other distribution
channels in making reservations for most major airlines in a single system.
2.1.2 Overview of using Java in developing web applications
Since there are so many Java technologies to cover in one post, this one will focus on
the most commonly used. The number of technologies mentioned here can be intimidating.
Keep in mind that you won't have to use all of them. In reality, a web application is often
made up of just one page built using the JavaServer Pages (JSP) technology. You'll
occasionally mix three or four of these technologies. It's important to know what's available
and how to use each one in a web application, no matter how many you end up using.
Java Servlet API
You can build HTTP-specific classes using the Java Servlet API. A servlet class extends
the capabilities of servers that host applications that use the request-response programming
model to access them. Servlets can respond to any form of request, but they are most widely
used to extend web service applications. For example, you could use a servlet to retrieve text
from an online form and return it to the screen in an HTML page and format, or you could use
a different servlet to write the data to a file or database instead. A servlet is a server-side
program that doesn't have its own graphical user interface (GUI) or HTML user interface
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(UI). Many web applications are possible thanks to Java Servlet extensions.
JavaServer Pages Technology
The JavaServer Pages (JSP) technology makes creating dynamic web content simple
and fast. JSP technology allows the accelerated development of server- and platform-
independent web-based applications. Using JSP technology, you can insert snippets of servlet
code into a text-based document. A JSP page is usually a text-based document with two types
of text:
Static data, which can be expressed in any text-based format, such as HTML, Wireless
Markup Language (WML), or XML.
JSP technology elements, which determine how the page constructs dynamic content.
The packages involved in creating JSP pages are javax.el, javax.servlet.jsp,
javax.servlet.jsp.el, and javax.servlet.jsp.tagext, though you will rarely have to import these
directly. A JSP page can be as simple as a bit of HTML with one snippet of JSP code and
the .jsp extension of the page name.
JavaServer Pages Standard Tag Library
The JavaServer Pages Standard Tag Library (JSTL) is a library that encapsulates core
features used by many JSP-based applications. You use a common uniform set of tags instead
of combining tags from various vendors in your applications. This standardization allows you
to run your applications on any JSP container that supports JSTL, and it increases the
likelihood that the tags will be implemented correctly.
JSTL has iterator and conditional tags for handling flow control, tags for manipulating
XML documents, internationalization tags, tags for accessing databases using SQL, and tags
for commonly used functions.
2.2. Requirements Analysis
The objective of this phase is to transform the needs and high-level requirements
specified in earlier phases into unambiguous (measurable and testable), traceable, complete,
consistent, and stakeholder-approved requirements. During the Requirements Analysis Phase,
the agency will conduct any procurement needed for the project. This phase also includes the
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use-case diagram which will describe the functionalities of the whole system.
Figure 1. Use case Diagram
The purpose of this project is to design and develop a flight reservation system where
users can browse, view and book a flight. Integrated with logistical and payment support, the
asset-light platform claims to make ticket booking easy and secure for both sellers and buyers.
Therefore, this includes three main of actors, which are User, Passenger and Administrator.
❖ User : browse the website then view schedule, price, check flight, book flight and
search flights.
❖ Passenger : reschedule flight or cancel flight
❖ Administrator : Sign into system with special role, manage tickets. seats, passengers,
flights and all account of the system.
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The detail use-case specification can be seen in the “Use-case specification” document.
Other non-functional requirements are documented in the Non functional requirements
definition
2.3. Implementation
2.3.1 Version Control
Git and Github are now popular standards, therefore our team has chosen to use these
tools in the software development process. Git allows the user to track changes to files over
time so that the user can go back and look at specific versions later. Github is an online
software development assistance and version control service that allows users to share with
others on user’s Git repositories by hosting them online. People that have been shared Git
repositories can easily view code, push their changes to Github, and also pull changes to their
computer.
Figure 2 : Github Management
2.3.2 Implementation
The implementation of this project is divided into different phases corresponding to
different packages of the project code. Implementation accomplished in two main phases:
Frontend implementation comes first, then comes backend implementation. The team
considers at the beginning of each stage in which members are assigned or tasked themselves,
completing the implementation and then pushing the code to the Github repository. The first
is frontend , the team uses serve Dynamic HTML Content to FrontEnd Java Servlet (Figure
3) . Views are divided into two main parts: client view and admin view. Each section is
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divided into different JSP files for each display screen (Figure 4, 5). In addition, Bootstrap is
used in this project to responsive the design, it maintains wide browser compatibility.
Figure 3 : Front-end Implementation
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Figure 4 : Client View
Figure 5 : Admin View
Backend is the next implementation of this project. This implementation phase starts with
creating models, DAO and Service Layers followed by the creation of Controller and View.
Nguyễn
Nguyễn
Nguyễn Văn Đào Thị Thu Nguyễn Thành Trịnh Thu
Thành Công Mạnh Tiến
Toản
Thủy
Công
Trang
Model
Ticket
Flight
Flight
Passenger
User
Reservation
DAO
layer
TicketDAO
FlightReser
vationDAO.
java
FlightDAO
PassengerDAO
UserDAO
Service
layer
TicketServic FlightReser
FlightService
Flight, Ticket
PassengerServic UserService
e,
PaymentService
e
vationServi
ce
Controll Admin
er
Ticket
Login,
Logout,
Register
User
Customer
Ticket
Flight
Reservation Logout,
Register
Login,
Passenger
Payment
+
Views
The views are created corresponding to the controllers that each member is in charge of.
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2.4 Design
The group paid attention to design four main parts : Database Design, Class Diagram,
Activity Diagram and Sequence Diagram.
Within the scope of this project and according to the requirement, there are 6 objects
that are arranged in the table of database design (Figure 6 ): passenger, users, ticket, payment,
flight and flightReservation as well as the properties that go with them showed in Entity-
Relationship Diagram to identify the data model of the system.
Figure 6 : Database Design
The second part is Class diagram (Figure 7) which describes the structure of a system
by showing the system's classes, their attributes, operations (or methods), and the
relationships among objects. it shows static structure of classifiers in a system ,helpful for
developers and other team members too.Business Analysts can use class diagrams to model
systems from a business perspective.
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Figure 7 : Class Diagram
Activity diagram (Figure 8) is the third part. This is another important behavioral diagram
in UML diagram to describe dynamic aspects of the system. Activity diagram is essentially an
advanced version of flow chart that modeling the flow from one activity to another activity.
Figure 8 : Activity Diagram
The last is Sequence Diagrams which capture the interaction between objects in the
context of a collaboration. Sequence Diagrams are time focused and they show the order of
the interaction visually by using the vertical axis of the diagram to represent time what
messages are sent and when.
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Figure 9 : Sequence Diagram
2.5 Evaluation
2.5.1 Advantages
The first advantage is the high performance. A Java application's performance can be
greatly improved by using Just-In-Time compilation, adaptive optimization, garbage
collection, and multi-threading. The Java architecture is also intended to reduce runtime
overheads.
The second upside of using Java is a true object-oriented programming language.
Almost everything in Java is an object. Objects and classes contain both program code and
data. Java has a large number of classes grouped into packages that can be inherited and used
in applications. Java's object model is trouble-free and simple to extend.
2.5.2 Limitations
Although Java is high performance, it seems to be less productive than other
programming languages. It is better suited for large projects like banking rather than small
languages. Startups today need to hit the market as soon as possible. Java does not do it well
in this area, which makes it a minus point of using Java.
Using IDE for Java is extremely important and essential for those who do not have
much experience using java and that makes web application development in java become IDE
dependent.
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2.5.3 Further improvements
Currently, the system has not provided features to evaluate the quality of the service as
well as the feedback of customers. In the future, the system will implement the chatbot to
automatically answer frequently asked questions to help better interact with customers.
Authentication is another enhancement. Rather than checking the login feature with
dump info, the development team would use cloud-based authentication, which is more
reliable and professional. Users will be able to sign up using their social network account, and
their information will be synced to the cloud.
One more thing, In the more distant future, the system will develop to help users find
and book hotels, or book a taxi to make the experience of using the system more diverse.
Besides, the system will develop an application on mobile devices in order to diversify forms
of access and make it more convenient for users.
3. Conclusion
Technology is advancing at a rapid pace nowadays, humans can easily move to remote
places quickly and conveniently by plane. That's why flight booking systems appeared and
became extremely relevant and useful. Due to the increased use of large-scale systems,
software engineering is now more focused on various metrics such as usability, ease of use,
and, most importantly, scalability. In this report, we have developed a flight booking system
using Java language and applied the MVC model in application development to give our
customers the best and most special experience using the service.
REFERENCES
[1] Addison Wesley (2003, February 26). Software Architecture in Practice [Online
Book].
Retrieved
from
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