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WEBSITE FOR MTNLBROADBAND SERVICES
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A project submitted in partial fulfillment of
the requirement for Mahanagar Telephone
Nagar Limited summer training 2009
Submitted to:
MTNL(Mahanagar Telephone Nagar Limited)
Sector-9,Rohini.
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WEBSITE FOR MTNL
BROADBAND SERVICES
(A Project Report For MTNL Summer Training 2009)
Made by:
Chirag Kataria
Rashi Aggarwal
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INDEX
PrefaceAcknowledgement
Introduction
Objectives
Justification and need of the system
Advantages of the project
Platform used
System development life cycleGantt chart
System model
Recognition of need
Need Identification
Feasibility study
Cost-Benefit analysis
System analysisWorking environment
Java
Weblogic
Oracle
System design
Database design
ER-diagram
Form design
Coding
Testing
Maintenance
Conclusion
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Future prospects
Bibliography
PREFACE
The website for MTNL Broadband Services is an
application that is maintained in order to give a moderneffective management for maintenance of broadband users
account and giving the details of internet usage to the
customers apart from providing other facilities like billing
information.
Computerization of broadband services is of great
significance for making the complicated process of record
maintenance as simple as possible using structured and
modular design.
Due to spurting of many books, the record maintenance of
large number of customers has grown considerably.
Though the whole work cannot be claimed to be project,
the main purpose of this project is record maintenance and
providing information about the number of MBs used, freeMBs, various packages available and the billing
information etc.
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ACKNOWLEDGEMENT
The best part about completion of project are sense of
achievement and that they offer a wonderful opportunity to
thanks all those who are directly or indirectly associated
with the project. This project was special it was undertaken
as a requirements for the completion of summer training
conducted by MTNL. Entire project development processes
helps us grasp not just the technical details of the subject but also helped us understand the IT (Software
Development) world and how people work here.
We consider ourselves fortunate enough to be in right
place with right person. We are very much obliged to our
guide Mr. Vijay and _______ for their diligent support and
invaluable guidance. We take this opportunity to express
our deep sense of gratitude and hearty thank to the staff ofMTNL for their valuable guidance, kind suggestion and
constant encouragement.
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Chirag Kataria
Rashi Aggarwal
INTRODUCTION
The World-Wide Web (WWW) continues to grow at an astonishing rate.
For a telecom company it is very important to be in touch with the customer
and provide them a sense of care. Today almost every home in urban India is
having a broadband connection. Various telecom companies are emerging at
a fast pace with lucrative schemes. To come up and win the race with flying
colours needs something extra. For this a company should treat its customers
with timely offers, new packages etc. Above all, the services should be
transparent. For example, a broadband company should tell the customers
how much MBs they have used during each session. Apart from this, it
should provide billing information so that if a customer havent received a
months bill then he could check it from his account. This will save the
customers time in going to MTNL office to check his bill and above all the
tension to remember whether the months bill has arrived or not, whether he
has paid it or not. He should be able to see which of his bills are fully paid,
partially paid or unpaid.
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In this project we are considering three types of users.
Administrator is the person who will have all the controls under him. He
can add, delete, update the record of a employee in the database. He can also
do the addition, deletion and updation in the records of a customer. He will
be the master of the website who can provide passwords to employees. He
can view the lists like area wise customers, bill amount wise customers etc.
Employee/User is the MTNL staff who can do the addition and deletion in
the records of a customer apart from doing various updations. They can also
see the lists like area wise customers, bill amount wise customers, status of
bill etc.
Customer will be the person who is having the broadband connection. He
will have the facility to check his bill information, do see the various
packages available, to change his password for security reasons, to see his
internet usage and the no. of MBs left if he is having a package providing
free MBs.
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ADVANTAGES OF THE PROJECT
Computerization makes the work of staff as well as customer
easier, faster and manageable. Automation of any systemmakes it more reliable and efficient. Staff will not have to
waste their time in doing so much paper work. Customers
will now not have to wait to get their records made and
updated by hands, which takes a lot of time. Thus time spend
by a customer to get its work done is reduced. Also, the
waiting time to get their records made and updated is reduce
significantly.
It is going to be advantageous for telecom company
because they will have to pay half or even fewer employees
as the most of the work will be taken over by the computer.
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PLATFORM USED
Hardware Requirement
1. Intel Core 2 Duo Processor
2. Color Monitor
3. Keyboard
4. 160 GB Hard Disk
5. 2 GB RAM
6. Compact Disk Drive
Software Requirement
1. Windows 9x
2. BEA Weblogic Platform 8.1
3. Oracle 9i
4. Notepad
5. Java Development kit
Front End Used
Java
Back End Used
Oracle 9i
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SYSTEM DEVELOPMENT LIFE
CYCLE
The Systems Development Life Cycle (SDLC) is a
conceptual model used in project management that
describes the stages involved in an information system
development project from an initial feasibility study
through maintenance of the completed application.
Various phases involved in development:
Recognition of need/Preliminary Investigation
Feasibility Study
System Analysis
System Design
Development of software
System testing
Implementation and Evaluation
Maintenance
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http://h/System%20Development%20Life%20Cycle.htmhttp://h/System%20Development%20Life%20Cycle.htmhttp://h/System%20Development%20Life%20Cycle.htmhttp://h/System%20Development%20Life%20Cycle.htm -
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GANTT CHART
6/9/200 96/14/20096/19/200 96/24/200 96/29/20 097/4/200 97/9/20 097/14/2009
Recogni t ion
of need
Feasibil ity
Study
Analysis
Des ign
Development
Testing
M aintenanc e
Start Date
Duration(day
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SYSTEM MODEL
There are various software development approaches
defined and designed which are used/employed during
development process of software, these approaches are also
referred as "Software Development Process Models". Each
process model follows a particular life cycle in order to
ensure success in process of software development.
EVOLUTIONARY MODEL
Evolutionary development is away of developing an
initial development exposing it to the user component and refining
it, with many versions, so as to develop an adequate system.There are basically three types of Evolutionary software process
model:-
1. Incremental Model.
2. Spiral Model.
3. Component Based Model.
During the project we have used Spiral Model. The description of
model is as follows:-
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The Spiral Model is an Evolutionary software process model that
couples the iterative nature of prototyping with the controlled and
systematic aspects of the linear sequential-model.
Using the spiral model software is developed in a series of
incremental releases. During early iterations the incremental
release might be a paper model or prototype. During later iterations
increasingly more complete versions of the engineered systems are
produced.
A Spiral model is divided into a number of framework
activities also called task reasons. There are basically six task
reasons they are:-
1. Customer communication.
2. Planning.
3. Risk Analysis.
4. Engineering.
5. Construction and release.
6. Customer evaluation.
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The descriptions of these tasks are as follows:-
1. Customer communication: - Customer communication task required
establishing effective communication between developer and
customer.
2. Planning: - Planning task is to define resources, timelines and other
project and related information.
3. Risk Analysis: - Risk analysis task is required to access both
technical and management risk.
4. Engineering:-Engineering task requires building one or more
representation of the application.
5. Construction and release: - Construction and release task required
constructing, task, installation, and providing user support.
6. Customer Evaluation: - Customer Evaluation task required obtaining
customer feedback based on the evaluation of the softwarerepresentation created during the installation stage.
From fig. In this model the software engineering team moves around
the spiral in a clockwise direction beginning at the center.
The first circuit around the spiral model might result in the
development of the product specification. Sub-sequent passes around
the spiral might be used to develop a prototype and then progressively
more sophisticated versions of the software.
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RECOGNITION OF NEED
The first step is to identify a need for the new system. This
will include determining whether a business problem or
opportunity exists, conducting a feasibility study to
determine if the proposed solution is cost effective, and
developing a project plan.
This process may involve end users who come up with anidea for improving their work. Ideally, the process occurs
in tandem with a review of the organization's strategic plan
to ensure that IT is being used to help the organization
achieve its strategic objectives. Management may need to
approve concept ideas before any money is budgeted for its
development.
Problem definition defines the user requirements,or whatthe user expects out of the system.This also includes a
rough idea of the resource requirement for the project.
The main objective of MTNL Broadband Services website
System is to provide customers a easy and efficient way to
see their internet usages, bill details, customer details etc.
apart from helping the employees of MTNL in organizing
and maintaining the records of customers efficiently. The
records are automatically updated in the database when any
transaction takes place.
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A commonly used checklist for verifying requirements
consists of the following:
Correct Simply put, does the requirement correctly
reflect what the user wants?
Complete Ensure no elements are missing from the
requirement, does the requirement describe allpossible values, what about
performance/security/accessibility aspects of a
requirement?
Consistent Checking that there are no contradictions
within the requirements.
Feasible Can the requirement be delivered given the
technology, time and budget constraints.
Testable Is the expected result known and can it beprogramatically or visually verified?
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NEED IDENTIFICATION
The main problem in an organization like a telecom
industry is record maintenance of each and every customer
and to provide each customer the details of its internetusage. Internet has entered in everyones life so a
organization has to pace up with the world . Since there can
be many intervals of internet usages everyday so a
organization providing such facility should maintain a
record for each and every interval for which internet is used
, bill maintenance etc., therefore it is necessary to maintain
large number of records. Moreover it is very difficult to use
them for future references, therefore the need for website is
felt.
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FEASIBILITY STUDY
Feasibility study is a procedure that identifies, describes
and evaluates the system.
The objective of a feasibility study is to acquire a sense of
its scope for solving the problem. Size of the project isdetermined. Costs and benefits are also estimated with
greater accuracy at this stage.
Preliminary analysis would examine the project feasibility,
i.e. to evaluate whether it would be worthwhile to proceed
with the project. The key considerations involved in the
feasibility analysis are:
Technical Feasibility
Economic Feasibility
Behavioural Feasibility
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TECHNICAL FEASIBILITY: It determines whether the
technology needed for the proposed system is available and
how it can be integrated within the organization. It also
assess whether the staff have the expertise to assimilate and
use the new technology. It is concerned with specifying
equipment and software that will successfully support the
required task.
ECONOMIC FEASIBILITY: The purpose of assessing
economic feasibility is to identify the financial benefits and
costs associated with the development project. It is also
called Cost-Benefit Analysis.
BEHAVIOURAL FEASIBILITY: People are resistant to
change so an estimate should be made of how strong a
reaction the user staff is likely to have towards the
development of proposed system.
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COST-BENEFIT ANALYSIS
It is a tool for evaluating the effectiveness of the project. It
may be used by the management to decide as to what extent
benefits outweigh the costs. The costs associated with the
proposed business system are the expenses arising from
developing, installing, training and implementing the
system.
We started the project by listing the possible queries that
the user might want to satisfy and on these lines we guided
the project further. Following are the drawbacks which our
project overcomes:
Firstly, there are expenses in maintaining the human
resource and more staff is required in maintaining the data.
Secondly, the time involved in recording the data is also
more.
Thirdly, if the project is to be used for future references
then the whole records have to be searched to find out one
single record, which is very time consuming.
The cost of storing the data and retrieval of data is less. Nodoubt initially the cost of installing the hardware and
providing training to the user staff will be high but in long
run benefits are more than the costs; thus our project is
ECONOMICAL FEASIBLE.
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SYSTEM ANALYSIS
It is the detailed understanding of all important facts of the
business area under investigation. The relationships of
various system components among themselves and with
environment are studied and understood. This requires data
collection from a variety of sources like questionnaires,
forms, interviews, records etc.
Structured analysis is a set of techniques and graphical
tools that allow the analysis to develop a new kind of
system specifications that are easily understandable to the
user. The structured analysis considers new goals and
structured tools for analysis. The new goals specify the
following:
Use of graphics wherever possible to help better
communication.
To differentiate between logical and physical system.
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WORKING ENVIRONMENT
The project Courier Services Management System has been
made in Java and Oracle 9i. The server used in this project
is BEA Weblogic Platform 8.1
JAVA
Java was conceived by James Gosling, Patrick Naughton,
Chris Warth, Ed Frank, and Mike Sheridan at Sun
Microsystems, Inc. in 1991. It took 18 months to develop
the first working version. This language was initially called
Oak but was renamed Java
in 1995.
IMPORTANCE OF JAVA
Java Applications and Applets
Java can be used to create two types of programs:
applications and applets. An application is a program thatruns on your computer, under the operating system of that
computer. That is, an application created by Java is more or
less like one created using C or C++. When used to create
applications, Java is not much different from any other
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computer language. Rather, it is Javas ability to create
applets that makes it important.
An appletis an application designed to be transmitted overthe Internet and executed by a Java-compatible Webbrowser. An applet is actually a tiny Java program,
dynamically downloaded across the network, just like an
image, sound file, or video clip. The important difference is
that an applet is an intelligent program, not just an
animation or media file. In other words, an applet is a
program that can react to user input and dynamically
changenot just run the same animation or sound over andover.
Security
When you use a Java-compatible Web browser, you can
safely download Java applets without fear of viral infection
or malicious intent. Java achieves this protection by
confining a Java program to the Java executionenvironment and not allowing it access to other parts of the
computer.
Portability
Many types of computers and operating systems are in use
throughout the worldand many are connected to the
Internet. For programs to be dynamically downloaded to all
the various types of platforms connected to the Internet,
some means of generating portable executable code is
needed. Java provides portability.
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Bytecode
Bytecode is a highly optimized set of instructions designed
to be executed by the Java run-time system, which is called
theJava Virtual Machine (JVM). That is, in its standardform, the JVM is an interpreter for bytecode
FEATURES OF JAVA
Simple
Secure
Portable
Object-oriented
Robust
Multithreaded Architecture-neutral
Interpreted
High performance
Distributed
Dynamic
PACKAGES
Packages are containers for classes that are used to keepthe class name space compartmentalized.
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This is the general form of the package statement:
packagepkg;
SERVLETS
Servlets are small programs that execute on the server side
of a Web connection. Just as applets dynamically extend
the functionality of a Web browser, servlets dynamically
extend the functionality of a Web server.
The Life Cycle of a Servlet
Three methods are central to the life cycle of a servlet.
These are init( ), service( ), and destroy( ). They are
implemented by every servlet and are invoked at specifictimes by the server.
The basic steps are the following:
1. Create and compile the servlet source code.
2. Start Weblogic.
3. Start a Web browser and request the servlet.
The javax.servlet Package
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Thejavax.servletpackage contains a number of interfaces
and classes that establish the framework in which servlets
operate. The following table summarizes the core interfacesthat are provided in this package. The most significant of
these is Servlet. All servlets must implement this interface
or extend a class that implements the interface.
The ServletRequest and ServletResponse interfaces are
also very important.
Interface Description
Servlet Declares life cycle methods for a servlet.
ServletConfig Allows servlets to get initialization
parameters.
ServletContext Enables servlets to log events and access
information about their environment.
ServletRequest Used to read data from a client request.
ServletResponse Used to write data to a client response.
SingleThreadModel Indicates that the servlet is thread
safe.
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The WebLogic Server
Today's business environment demands Web and e-
commerce applications that accelerate our entry into newmarkets, help us find new ways to reach and retain
customers, and allow us to introduce new products and
services quickly. To build and deploy these new
solutions, we need a proven, reliable e-commerce
platform that can connect and empower all types of users
while integrating our corporate data, mainframe
applications, and other enterprise applications in a
powerful, flexible, end-to-end e-commerce solution. Oursolution must provide the performance, scalability, and
high availability needed to handle your most critical
enterprise-scale computing.
As the industry-leading e-commerce transaction platform,
WebLogic Server allows us to quickly develop and
deploy reliable, secure, scalable and manageable
applications. It manages system-level details so we canconcentrate on business logic and presentation.
WebLogic Server is an application server: a platform for
developing and deploying multitier distributed enterprise
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applications. WebLogic Server centralizes application
services such as Web server functionality, business
components, and access to backend enterprise systems. Ituses technologies such as caching and connection pooling
to improve resource use and application performance.
WebLogic Server also provides enterprise-level security
and powerful administration facilities.
WebLogic Server operates in the middle tier of a
multitier (orn-tier) architecture. A multitier architecturedetermines where the software components that make up
a computing system are executed in relation to each other
and to the hardware, network, and users. Choosing the
best location for each software component lets us develop
applications faster; eases deployment and administration;
and provides greater control over performance,
utilization, security, scalability, and reliability.
WebLogic Server implements J2EE, the Java Enterprise
standard. Java is a network-savvy, object-oriented
programming language, and J2EE includes component
technologies for developing distributed objects. This
functionality adds a second dimension to the WebLogic
Server application architecturea layering of application
logic, with each layer selectively deployed among
WebLogic Server J2EE technologies.
J2EE Platform
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WebLogic Server contains Java 2 Platform, Enterprise
Edition (J2EE) technologies. J2EE is the standard
platform for developing multitier enterprise applicationsbased on the Java programming language. The
technologies that make up J2EE were developed
collaboratively by Sun Microsystems and other software
vendors, including BEA Systems.
J2EE applications are based on standardized, modular
components. WebLogic Server provides a complete set of
services for those components and handles many details
of application behavior automatically, without requiring
programming.
FEATURES OF WEBLOGIC 8.1
WebLogic Server provides essential features for
developing and deploying mission-critical e-commerce
applications across distributed, heterogeneous computing
environments. These features include the following:
Standards leadershipComprehensive Enterprise
Java support to ease implementation and deployment
of application components. WebLogic Server is the
first independently developed Java application server
to achieve J2EE certification. Rich client optionsWebLogic Server supports Web
browsers and other clients that use HTTP; Java clients
that use RMI (Remote Method Invocation) or IIOP
(Internet Inter-ORB Protocol); and mobile devices that
use (WAP) Wireless Access Protocol. Connectors
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from BEA and other companies enable virtually any
client or legacy application to work with a WebLogic
Server application. Flexible Web servicesWebLogic Server provides a
solid platform for deploying Web services as
components of a heterogeneous distributed
application. Web services use a cross-platform, cross-
language data model (XML) to provide
interoperability among application components on
diverse hardware and software platforms.
Enterprise e-business scalabilityEfficient use and
high availability of critical resources are achieved
through Enterprise JavaBean business components and
mechanisms such as WebLogic Server clustering for
dynamic Web pages, backend resource pooling, and
connection sharing. Robust administrationWebLogic Server offers a
Web-based Administration Console for configuring
and monitoring WebLogic Server services. A
command-line interface for configuration makes it
convenient to administer WebLogic Servers with
scripts.
E-commerce-ready securityWebLogic Serverprovides Secure Sockets Layer (SSL) support for
encrypting data transmitted across WebLogic Server,
clients, and other servers. WebLogic security realms
feature user authentication and authorization for all
WebLogic Server services. External security stores,
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such as Lightweight Directory Access Protocol
(LDAP) servers, can be adapted to WebLogic realms,
enabling single sign-on for the enterprise. TheSecurity Service Provider Interface makes it possible
to extend WebLogic Security services and to
implement WebLogic Security features in
applications.
Maximum development and deployment flexibility
WebLogic Server provides tight integration with
and support for leading databases, development tools,
and other environments.
The next two sections describe these two views of
WebLogic Server architecture: software tiers and
application logic layers.
Software Component TiersThe software components of a multitier architecture
consist of three tiers:
The client tiercontains programs executed by users,including Web browsers and network-capable
application programs. These programs can be written
in virtually any programming language.
The middle tiercontains WebLogic Server and otherservers that are addressed directly by clients, such as
existing Web servers or proxy servers.
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The backend tiercontains enterprise resources, such asdatabase systems, mainframe and legacy applications,
and packaged enterprise resource planning (ERP)
applications.
Client applications access WebLogic Server directly, or
through another Web server or proxy server. WebLogic
Server generally connects with backend services onbehalf of clients. However, clients may directly access
backend services using a multitier JDBC driver.
Client-Tier Components
WebLogic Server clients use standard interfaces to access
WebLogic Server services. WebLogic Server has
complete Web server functionality, so a Web browser canrequest pages from WebLogic Server using the Web's
standard HTTP protocol. WebLogic Server servlets and
JavaServer Pages (JSPs) produce the dynamic,
personalized Web pages required for advanced e-
commerce Web applications.
Client programs written in Java may include highly
interactive graphical user interfaces built with Java Swingclasses. They can also access WebLogic Server services
using standard J2EE APIs.
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All these services are also available to Web browser
clients by deploying servlets and JSP pages in WebLogic
Server.
Middle-Tier Components
The middle tier includes WebLogic Server and other
Web servers, firewalls, and proxy servers that mediate
traffic between clients and WebLogic Server. The Nokia
WAP server, part of the BEA mobile commerce solution,is an example of another middle tier server that provides
connectivity between wireless devices and WebLogic
Server.
Applications based on a multitier architecture require
reliability, scalability, and high performance in the
middle tier. The application server you select for the
middle tier is, therefore, critical to the success of yoursystem.
The WebLogic Server cluster option allows you to
distribute client requests and back-end services among
multiple cooperating WebLogic Servers. Programs in the
client tier access the cluster as if it were a single
WebLogic Server. As the workload increases, you can
add WebLogic Servers to the cluster to share the work.The cluster uses a selectable load-balancing algorithm to
choose a WebLogic Server in the cluster that is capable
of handling the request.
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When a request fails, another WebLogic Server that
provides the requested service can take over. Failover is
transparent whenever possible, which minimizes theamount of code that must be written to recover from
failures. For example, servlet session state can be
replicated on a secondary WebLogic Server so that if the
WebLogic Server that is handling a request fails, the
client's session can resume uninterrupted on the
secondary server. WebLogic EJB, JMS, JDBC, and RMI
services are all implemented with clustering capabilities.
Backend-Tier Components
The backend tier contains services that are accessible to
clients only through WebLogic Server. Applications in
the backend tier tend to be the most valuable and
mission-critical enterprise resources. WebLogic Server
protects them by restricting direct access by end users.
With technologies such as connection pools and caching,WebLogic Server uses back-end resources efficiently and
improves application response.
Backend services include databases, enterprise resource
planning (ERP) systems, mainframe applications, legacy
enterprise applications, and transaction monitors.
Existing enterprise applications can be integrated into the
backend tier using the Java Connector Architecture (JCA)specification from Sun Microsystems. WebLogic Server
makes it easy to add a Web interface to an integrated
backend application.
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A database management system is the most common
backend service, required by nearly all WebLogic Server
applications. WebLogic EJB and WebLogic JMStypically store persistent data in a database in the backend
tier.
A JDBC connection pool, defined in WebLogic Server,
opens a predefined number of database connections.
Once opened, database connections are shared by all
WebLogic Server applications that need database access.
The expensive overhead associated with establishing a
connection is incurred only once for each connection in
the pool, instead of once per client request. WebLogic
Server monitors database connections, refreshing them as
needed and ensuring reliable database services for
applications.
WebLogic Enterprise Connectivity, which provides
access to BEA WebLogic EnterpriseTM systems, and
Jolt for WebLogic Server, which provides access to
BEA Tuxedo systems, also use connection pools to
enhance system performance.
Application Logic Layers
WebLogic Server implements J2EE component
technologies and services. J2EE component technologies
include servlets, JSP Pages, and Enterprise JavaBeans.
J2EE services include access to standard network
protocols, database systems, and messaging systems. To
build a WebLogic Server application, you must create
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and assemble components, using the service APIs when
necessary.
Components are executed in the WebLogic Server Webcontainer or EJB container. Containers provide the life
cycle support and services defined by the J2EE
specifications so that the components you build do not
have to handle underlying details.
JDBC
Java Database Connectivity (JDBC) provides access tobackend database resources. Java applications access
JDBC using a JDBC driver, which is a database vendor-
specific interface for a database server. Although any
Java application can load a vendor's JDBC driver,
connect to the database, and perform database operations,
WebLogic Server provides a significant performance
advantage by offering JDBC connection pools.A JDBC connection pool is a named group of JDBC
connections managed through WebLogic Server. At
startup time WebLogic Server opens JDBC connections
and adds them to the pool. When an application requires
a JDBC connection, it gets a connection from the pool,
uses it, and then returns it to the pool for use by for other
applications. Establishing a database connection is oftena time-consuming, resource-intensive operation, so a
connection pool, which limits the number of connection
operations, improves performance.
WebLogic Server also provides JDBC multipools for
achieving load balancing or high availability capabilities
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with database connections in single-server
configurations. Multipools are a "pool of pools" that
provide a configurable algorithm for choosing which poolto provide a connection for a given request. Currently,
WebLogic Server provides algorithms to support either
high availability or load balancing behavior for database
connections.
To register a connection pool in the JNDI naming tree,
define a DataSource object for it. Java client applications
can then get a connection from the pool by performing a
JNDI lookup on the DataSource name.
Server-side Java classes use the WebLogic JDBC pool
driver, which is a generic JDBC driver that calls through
to the vendor-specific JDBC driver. This mechanism
makes application code more portable, even if you
change the brand of database used in the backend tier.
The client-side JDBC driver is the WebLogic JDBC/RMIdriver, which is an RMI interface to the pool driver. Use
this driver the same way you use any standard JDBC
driver. When the JDBC/RMI driver is used, Java
programs can access JDBC in a manner consistent with
other WebLogic Server distributed objects, and they can
keep database data structures in the middle tier.
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ORACLE
The concept of a relational database is not new. It was
originally developed back in 1970 by Dr. E.F. Codd. He
laid down the theory of relational databases in his seminalpaper entitled A Relational Model of Data for Large
Shared Data Banks published in Communications of the
ACM(Association for Computing Machinery), Vol. 13, No.6, June 1970.
The basic concepts of a relational database are fairly easy
to understand. A relational database is a collection of
related information that has been organized into structuresknown as tables. Each table contains rows that are furtherorganized into columns. These tables are stored in the
database in structures known asschemas, which are areaswhere database users may store their tables. Each user may
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also choose to grant permissions to other users to access
their tables.
For a database accessed using a computer, the databasemanagement system is the software that manages the files
stored in the file system of the computer. The Oracle
database is one such piece of software; other examples
include SQL Server, DB2, and MySQL.
Of course, every database must have some way to get data
in and out of it, preferably using a common language
understood by all databases. Todays database management
systems implement a standard language known as
Structured Query Language, or SQL. Among other things,SQL allows you to retrieve, add, update, and delete
information in a database
Structured Query Language (SQL)
Structured Query Language (SQL) is the standard language
designed to access relational databases. SQL is pronounced
either as the word sequel or as the letters S-Q-L. (I
prefer sequel as its quicker to say.)
SQL is based on the groundbreaking work of Dr. E.F.
Codd, with the first implementation of SQL being
developed by IBM in the mid-1970s. IBM was conductinga research project known as System R, and SQL was born
from that project. Later in 1979, a company then known as
Relational Software Inc. (known today as Oracle
Corporation) released the first commercial version of SQL.
SQL is now fully standardized and recognized by the
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American National Standards Institute (ANSI). You can
use SQL to access an Oracle, SQL Server, DB2, or MySQL
database.SQL uses a simple syntax that is easy to learn and use.
Youll see some simple examples of its use in this chapter.
There are five types of SQL statements, outlined in the
following list:
Query statements Allow you to retrieve rows stored
in database tables. You write a query using the SQL
SELECT statement.
Data Manipulation Language (DML)statements Allow you to modify the contents of
tables. There are three DML statements:
o INSERT Allows you to add rows to a table.
o UPDATE Allows you to change a row.
o DELETE Allows you to remove rows.
o
Data Definition Language (DDL) statements Allow
you to define the data structures, such as tables, that
make up a database. There are five basic types of DDL
statements:
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o CREATE Allows you to create a database
structure. For example, CREATE TABLE is used
to create a table; another example is CREATEUSER, which is used to create a database user.
o ALTER Allows you to modify a database
structure. For example, ALTER TABLE is used
to modify a table.
o DROP Allows you to remove a database
structure. For example, DROP TABLE is used to
remove a table.
o RENAME Allows you to change the name of atable.
o TRUNCATE Allows you to delete the entire
contents of a table.
Transaction Control (TC) statements Allow you to
permanently record the changes made to the rowsstored in a table or undo those changes. There are
three TC statements:
o COMMIT Allows you to permanently record
changes made to rows.
o ROLLBACK Allows you to undo changesmade to rows.
o SAVEPOINT Allows you to set a savepoint
to which you can roll back changes made to rows.
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Data Control Language (DCL) statements Allow
you to change the permissions on database structures.
There are two DCL statements:
o GRANT Allows you to give another user access
to your database structures, such as tables.
o REVOKE Allows you to prevent another user
from accessing to your database structures, such
as tables.
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DATABASE DESIGN
1. cust account_no number(20),
type varchar(20),user_name varchar(25),
password varchar(20),
create_date varchar(20),
phone number(15),
mobile number(15),
email varchar(30),
address varchar(40),plan_name varchar(30)
2. Packagepackage_id number(10),name varchar(20),
connection varchar(20),
description varchar(500),
validity varchar(20),
available_service varchar(20)
charge number(10)
free number(10)
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3. Usageinfo account_no number(20),
start_time varchar(20),end_time varchar(20),
upload number(10),
download number(10)
4. Bill account_no number(20),
area varchar(20),
delivery_mode varchar(20),
bill_date varchar(20),
bill_no number(10),
amount number(20),
status varchar(20),
problem varchar(20)
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FORM DESIGN
This is the login page which will be displayed to everyoneincluding the administrator and employee. Whenever a custome
employee or administrator fills up the details like username and
password then the corresponding page displays up.
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HOME PAGE FOR CUSTOMER
When the customer signs in this page is displayed up showing
the customer information. On clicking the Customer Information onthe menu bar, again this page is displayed up where the customer can
see his details like username, account no., phone no., address, plan et
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On clicking the Billing Information tab on the menu bar, this
page is displayed up where the customer can see his bill details
like last bill amount, status of the bill, bill date etc.
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If the user wants to change his password then on clicking
Account Mgt tab, a customer can see this page where he
has to type his current password and in the new password textboxhe has to type the password with which he wants to replace his
current password.
On other page we get this type of output
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On clicking the Contact us on the menu bar, this page is displayed
up where the customer can see his details of the staff whom theyhave to contact in case they have problem in their account or some
detail has to be changed in the records.
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This is the page forUsage Information where customer will be
able to see how much internet usage he has done. The start date and
time along with end date and time is displayed. The amount of MBs
used in uploading the web pages and those used for downloading arealso displayed.
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Clicking Balance Information tells you how much MBs you have
used and how much free MBs the customer gets every month if it isin its package. The amount of MBs left in case he gets some free
MBs is displayed.
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Package Information tells the various packages available in
MTNL so that customer can have the ease to see the various
options provided to him.
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HOME PAGE FOR EMPLOYEE
An employee after signing in will see this page. He will have the
options to add new records of customers, delete existing records or do
some updations in the customers records. Apart from this the details
of employee is displayed on the page.
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This page is displayed whenever employee clicks on ADD tab.
Various information regarding the customer like name, address,
contact details etc. have to be filled and then click on the
corresponding button.
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On next page, we are shown whether the record is inserted or not.
This page is displayed whenever employee clicks on DELETE tab.
Customers Account number whose record has to be deleted should bentered and then click on the corresponding button.
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On the next page, we get the details of that account no. of the custome
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After that if the record is deleted then it is visible on next page
This page is displayed whenever employee clicks on UPDATE tab.
Customers Account number whose record has to be updated should
be entered and then click on the corresponding button. His informatio
is displayed on the next page. Updations are done and the button is
clicked.
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On the next page, we get the details of that account no. of the custome
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After that if the record is updated then it is visible on next page
If the employee wants to view the details of customers belonging to a
particular area then he clicks on the AREAWISE tab under ViewCustomer. Employee has to enter the area name and click on the butto
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On next page, customers having that area will be displayed
If the employee wants to view the details of customers belonging to a
particular package/plan then he clicks on the PLANWISE tab under
View Customer. Employee has to enter the plan name and click on the
button.
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On next page,
If the employee wants to view the details of customers belonging to a
particular bill no. then he clicks on the bill no. tab under View Bill.Employee has to enter the bill no. and click on the button.
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On next page, customer having that bill no. will be displayed
If the employee wants to view the details of customers belonging to a
particular payment mode then he clicks on the Delivery mode tab
under View Bill. Employee has to enter the mode like cash or cheque
and click on the button.
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On next page, customer having that details of customers will be
displayed
If the employee wants to view the details of customers belonging to a
particular group of bill amount then he clicks on the Amountwise tabunder View Bill. Employee has to click on the corresponding button
for which he has to see the details of the customers.
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On next page, customer details will be displayed
If the employee wants to view the details of customers whose last bill
disputed or undisputed then he clicks on the Status tabunder View Bill. Employee has to enter the corresponding text whethe
bill is disputed or undisputed and click on the button.
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On next page, customer details will be displayed
HOME PAGE FOR ADMINISTRATOR
This page displays up when administrator signs in. His details are
shown on this page. He has the option to add, delete or update record
of employees apart from having all the privileges which a employee
gets like adding, deleting, updating records of customers and other
view options.
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This page is displayed whenever the administrator clicks on ADD andthen on employee tab. Various information regarding the employee
like name, address, contact details etc. have to be filled and then click
on the corresponding button.
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On the next page, we get the result whether the record is inserted or no
This page is displayed whenever administrator clicks on DELETE an
then on Employee tab. Employees Account number whose record ha
to be deleted should be entered and then click on the corresponding
button.
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On the next page, we get the details of that account no. of the employe
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After that if the record is deleted then it is visible on next page
This page is displayed whenever Administrator clicks on UPDATE
and then on Employee tab. Employees Account number whose
record has to be updated should be entered and then click on the
corresponding button. His information is displayed on the next page.
Updations are done and the button is clicked.
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On the next page, we get the details of that account no. of the employe
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After that if the record is updated then it is visible on next page
This page is displayed whenever Administrator clicks on VIEW
EMPLOYEE. Details of all the employees can be seen here.
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CODING
LOGIN PAGE
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(JSP PAGE)
Welcome to Mahanagar Telephone Nigam Limited
Welcome to MTNL Broadband Services
USER NAME
PASSWORD:
Customers are advised to change the password from security perspective. For Triband the password
should be changed at two places in a specific order. For detailed procedure refer Triband User's Guide.You may also dial 1504 and obtain online help.
In Case of difficulties or suggestions please contact: MTNL Delhi Office,
Ph. : 22221504/1504 OR Email: [email protected]
Copyright (c) 2004, Mahanagar Telephone Nigam Limited. All Rights Reserved
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Best Viewed with Internet Explorer 5.5 or above and Netscape(4.7 & 7.1 versions) in 1024 X 800
resolution
SERVLET FILE FOR LOGIN PAGE
package pack;
import java.io.*;
import java.sql.*;import javax.servlet.*;
import javax.servlet.http.*;
public class log extends HttpServlet
{
public void doPost(HttpServletRequest rq, HttpServletResponse rs)throws IOException,ServletExcepti{
PrintWriter pw=rs.getWriter();
Connection con;
String us,pd,tp;try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");
Statement st=con.createStatement();us=rq.getParameter("c1");
pd=rq.getParameter("c2");
ResultSet rst=st.executeQuery("select * from cust where (user_name='"+us+"' and
password='"+pd+"')");
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if(rst.next())
{
int a=rst.getInt(1);
String type=(rst.getString(2)).trim();System.out.println(type);
System.out.println(type.equals("admin"));
if(type.equals("admin"))rs.sendRedirect("admin.jsp?ii="+a);
else if(type.equals("emp"))
rs.sendRedirect("emp.jsp?jj="+a);else
rs.sendRedirect("one.jsp?kk="+a);
}else
pw.println("Record doesnot exist");
}catch(Exception e)
{
System.out.println("OUT");}
}
}
USAGEWISE INFORMATION
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pk.println("Home");
con.close();
}
catch(Exception e){
System.out.println("Error in connection");
}
%>
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PrintWriter pb=response.getWriter();
try{ Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");
Statement st=con.createStatement();
int pp=Integer.parseInt(request.getParameter("ui"));
System.out.println(pp);
pb.println("Billing Info");
con.close();
}
catch(Exception e){
System.out.println("Error in connection");
}%>
Account Mgt
Package Info
Contact us
Logout
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System.out.println(p);
pu.println("usage Info");
con.close();
}catch(Exception e)
{
System.out.println("Error in connection");}
%>
Usage Information
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pw.println(""+a+""+start+""+end+""+up+""+down+"");
}
con.close();
}catch(Exception e)
{
System.out.println("Error in connection");}
%>
ACCOUNT MANAGEMENT
package pack;
import java.io.*;
import java.sql.*;import javax.servlet.*;
import javax.servlet.http.*;
public class account extends HttpServlet{
public void doPost(HttpServletRequest rq, HttpServletResponse rs)throws IOException,ServletExcepti
{PrintWriter pw=rs.getWriter();
Connection con;
int oldp,newp,r=0;try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");
Statement st=con.createStatement();
oldp=Integer.parseInt(rq.getParameter("t1"));
ResultSet rst=st.executeQuery("select password from cust where password="+oldp);
newp=Integer.parseInt(rq.getParameter("t2"));
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if(rst.next()){
r=st.executeUpdate("update cust set password="+newp+"where password="+oldp);
System.out.println(r);
}if(r!=0)
pw.println("password updated");
elsepw.println("mismatch password");
}
catch(Exception e){
System.out.println(e);
}}
}
Package Information
MTNL BROADBAND
Package Information
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while(rst.next()){
int a=rst.getInt(1);
String name=rst.getString(2);
String conn=rst.getString(3);String desc=rst.getString(4);
String val=rst.getString(5);
String service=rst.getString(6);
pw.println(""+a+""+name+""+conn+""
+desc+""+val+""+service+"");
}
}
catch(Exception e){
System.out.println("Error in connection");}
%>
BALANCE INFORMATION
MTNL BROADBAND
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Balance Information
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{System.out.println("Error in connection");
}
%>
BILLING INFORMATION
MTNL BROADBAND
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}
catch(Exception e)
{
System.out.println("Error in connection");}
%>
Account Mgt
Package Info
Contact us
Logout
Balance Info
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pu.println("usage Info");
con.close();
}
catch(Exception e)
{System.out.println("Error in connection");
}
%>
Billing Information
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String amt=rst.getString(6);String status=rst.getString(7);
String prob=rst.getString(8);
pw.println("Accountno"+a+"Area"+area+"
Delivery mode"+deli+"Bill
Date"+date+"Billno"+bill+"Amount"+amt+"
Status"+status+"Problem"+prob+"");
}con.close();
}
catch(Exception e){
System.out.println("Error in connection");}
%>
INSERTION
package pack;
import java.io.*;
import java.sql.*;import javax.servlet.*;
import javax.servlet.http.*;
public class add extends HttpServlet
{
public void doPost(HttpServletRequest rq, HttpServletResponse rs)throws IOException,ServletException
{
PrintWriter pw=rs.getWriter();Connection con;
String str,type,name,pass,date,email,address,plan;
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int acc;
long p,mob;
try
{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");
Statement st=con.createStatement();
acc=Integer.parseInt(rq.getParameter("tex1"));
type=rq.getParameter("tex2");name=rq.getParameter("tex3");
pass=rq.getParameter("tex4");
date=rq.getParameter("tex5");p=Long.parseLong(rq.getParameter("tex6"));
mob=Long.parseLong(rq.getParameter("tex7"));email=rq.getParameter("tex8");
address=rq.getParameter("tex9");plan=rq.getParameter("tex10");
str="insert into cust values("+acc+",'"+type+"','"+name+"','"+pass+"','"+date+"',"+p+","+
mob+",'"+email+"','"
+address+"','"+plan+"')";int rst=st.executeUpdate(str);
System.out.println(rst);
if(rst>=1)pw.println("Record Inserted");
else
pw.println("Record is not Inserted");
}catch(Exception e)
{
System.out.println("OUT");
}
}
}
HOMEPAGE FOR ADMINISTRATOR
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MTNL BROADBAND
ADD
CUST
EMPLOYEE
UPDATE
CUSTEMPLOYEE
DELETE
CUSTEMPLOYEE
VIEW USER
AREAWISEPLANWISE
VIEW BILL
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BILL NO
DELIVERY MODEAMOUNT WISE
DISPUTED/UNDISPUTED
VIEW EMPLOYEE
DEPARTMENTWISE
Admin Details
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pw.println("Account no"+a+"username"+user+"Creation
Date"+date+"Phone"+phone+"=1)
pw.println("Record deleted");else
pw.println("Record is not deleted");
}catch(Exception e)
{
System.out.println("OUT");}
}
}
UPDATION
package pack;
import java.io.*;
import java.sql.*;
import javax.servlet.*;import javax.servlet.http.*;
public class update1 extends HttpServlet{
public void doPost(HttpServletRequest rq, HttpServletResponse rs)throws IOException,ServletExc
{
PrintWriter pw=rs.getWriter();Connection con;
int acc;
String type,name,pass,date,email,address,plan;long p,mob;
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");
Statement st=con.createStatement();acc=Integer.parseInt(rq.getParameter("tex11"));
ResultSet rst=st.executeQuery("select * from cust where account_no="+acc);
if(rst.next()){
acc=rst.getInt(1);
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type=rst.getString(2);name=rst.getString(3);
pass=rst.getString(4);
date=rst.getString(5);
p=rst.getLong(6);mob=rst.getLong(7);
email=rst.getString(8);
address=rst.getString(9);plan=rst.getString(10);
pw.println("");
pw.println("");
pw.println("Account no");pw.println("Type");
pw.println("User name");pw.println("Password");
pw.println("Date");
pw.println("Phone");
pw.println("Mobile");pw.println("Email");
pw.println("Address");
pw.println("Plan name");
pw.println("
");pw.println("");
}
elsepw.println("Record not found");
}
catch(Exception e){
System.out.println("OUT");
}
}}
DISPLAY OF RECORD TO BE UPDATED
package pack;
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import java.io.*;import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class update2 extends HttpServlet
{
public void doPost(HttpServletRequest rq, HttpServletResponse rs)throws IOException,ServletExc{
PrintWriter pw=rs.getWriter();
Connection con;String str,type,name,pass,date,emai,addr,plan;
int acc;
long p,mob;try
{Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");Statement st=con.createStatement();
acc=Integer.parseInt(rq.getParameter("tt1"));type=rq.getParameter("tt2");
name=rq.getParameter("tt3");
pass=rq.getParameter("tt4");date=rq.getParameter("tt5");
p=Long.parseLong(rq.getParameter("tt6"));
mob=Long.parseLong(rq.getParameter("tt7"));emai=rq.getParameter("tt8");
addr=rq.getParameter("tt9");
plan=rq.getParameter("tt10");
str="update cust set account_no="+acc+",type='"+type+"',user_name='"+
name+"',password='"+pass+"',create_date='"+date+"',phone="+p+",mobile="+mob+",email='"+emai"',address='"+addr+"',plan_name='"+plan+"' where(account_no="+acc+")";
int rst=st.executeUpdate(str);
System.out.println(rst);
if(rst>=1)
pw.println("Record Updated");else
pw.println("Record is not updated");
}catch(Exception e)
{System.out.println("chunny");
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System.out.println("OUT");}
}
}
PAYMENT MODE WISE CUSTOMERS
package pack;
import java.io.*;
import java.sql.*;
import javax.servlet.*;import javax.servlet.http.*;
public class delm extends HttpServlet
{
public void doPost(HttpServletRequest rq, HttpServletResponse rs)throws IOException,ServletException
{
PrintWriter pw=rs.getWriter();Connection con;
String dr;
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");
Statement st=con.createStatement();
dr=rq.getParameter("tt1");
ResultSet rst=st.executeQuery("select account_no from bill where delivery_mode='"+dr+"'");
pw.println("");
pw.println("");while(rst.next())
{
int accno=rst.getInt(1);
ResultSet rest=st.executeQuery("select * from cust where account_no="+accno);
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while(rest.next()){
String type =rest.getString(2);
String name=rest.getString(3);
String pass=rest.getString(4);String date=rest.getString(5);
long p =rest.getLong(6);
long mob=rest.getLong(7);String emai=rest.getString(8);
String addr=rest.getString(9);
String plan=rest.getString(10);
pw.println(""+accno+""+type+""+name+""+pass+""+date+""+p+""+mob+""+emai+""
+addr+""+plan+"");}
}pw.println("");
}
catch(Exception e){
System.out.println("OUT");
}}
}
HOMEPAGE FOR EMPLOYEE
MTNL BROADBAND
ADD
UPDATE
DELETE
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VIEW USER
AREAWISE
PLANWISE
VIEW BILL
BILL NO
DELIVERY MODEAMOUNT WISE
DISPUTED/UNDISPUTED
Employee Details
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String user=rst.getString(3);String date=rst.getString(5);
String phone=rst.getString(6);
String mobile=rst.getString(7);
String email=rst.getString(8);String address=rst.getString(9);
String plan=rst.getString(10);
pw.println("Account no"+a+"user
name"+user+"Creation
Date"+date+"Phone"+phone+"Mobile"+mobile+"Email"+email+"
Address"+address+"Plan"+plan+"");
}con.close();
}catch(Exception e)
{System.out.println("Error in connection");
}
%>
EMPLOYEE INFORMATION
MTNL BROADBAND
Employee Information
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Statement st=con.createStatement();
ResultSet rst;
pw.println(""+"Account no"+""+"Type"+""+"User name"+"""Password"+""+"Create Date"+""+"Phone"+""+
"Mobile"+""+"Email"+""+"Address"+""+"Plan name"+"");
rst=st.executeQuery("select * from cust where type='emp'");
while(rst.next()){
int a=rst.getInt(1);
String type=rst.getString(2);String user=rst.getString(3);
String pass=rst.getString(4);String date=rst.getString(5);
long p=rst.getLong(6);long mob=rst.getLong(7);
String email=rst.getString(8);
String address=rst.getString(9);String plan=rst.getString(10);
pw.println(""+a+""+type+""+user+""
+pass+""+date+""+p+""+mob+""+email+""+address+""+plan+"");
}}
catch(Exception e)
{
System.out.println("Error in connection");}
%>
TESTING
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No program or system is ever perfect; communication between userand designer is not always complete or clear and time is usually
short. The result is errors. The errors must be eliminated before the
system is ready for user acceptance. The main objective of testing i
to systematically uncover as many errors as possible. The most
severe defect of a software is one which can cause the program to
fail to meet its requirements (from a costumers point of view). A
good test is one, which is not redundant, and it is neither too simple
nor too complex.
Software testing accounts for a largest percentage of technical effor
in software process. Testing is a set of activities that can be planned
in advance and conducted systematically.
For this purpose template for software testing, i.e., a set of steps int
which specific test case design techniques and testing methods can
be placed should be defined for software process.
Testing- the process of exercising software to verify that it
satisfies specified requirements and to detect faults; the
measurement of software quality. Where the actualbehaviour of the system is different from the expected
behaviour, a failure is considered to have occurred.
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A failure is the result of a fault. A fault is an error in the
programming or specification that may or may not result in
a failure. A failure is the manifestation of fault.
The principal aim of testing is to detect faults so that they
can be removed before the product is made available to
customers. Faults in software are made for a variety of
reasons, from misinterpreting the requirements through to
simple typing mistakes. It is the role of software testing and
quality assurance, to reduce those faults by identifying the
failures.
Some of the testing are:
System Testing
System Testing is often the term given to group all types of
testing that are performed against the system as a whole. So
generally everything except for unit and integration testing.
Unit Testing
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The most micro scale of testing; to test particular
functions or code modules. Typically done by the
programmer and not by testers, as it requires detailedknowledge of the internal program design and code. Not
always easily done unless the application has a well-
designed architecture with tight code; may require
developing test driver modules or test harnesses.
Usability Testing
Testing - testing for user-friendliness. Clearly this is
subjective, and will depend on the targeted end-user or
customer. User interviews, surveys, video recording of user
sessions, and other techniques can be used. Programmers
and testers are usually not appropriate as usability testers.
Conformance Testing
Verifying implementation conformance to industry
standards. Producing tests for the behavior of an
implementation to be sure it provides the portability,
interoperability, and/or compatibility a standard defines.
Functional Testing
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Functional Testing the process of testing a system to verify
that it meets the functional requirements.
Integration Testing - Component
Also referred to as Integration Testing in the Small.
The testing of joined components of a system to determine
if they function correctly together. Components in this
sense are modules or units of code within the same system.
An example may be the integration of a shopping basket
component with a web component. Component IntegrationTesting is likely to focus on the two components operating
correctly as a single solution.
User Aceptance Testing
User Acceptance Testing is the final stage of validation; it
usually occurs just prior to the final sign off and is
generally performed by users, not technical staff. The isprocess of verifying that the system under test (SUT) meets
the customers/users needs and focuses on building
confidence in the system, using business related scenarios.
When at all possible, the customer should perform, or be
closely involved during, this stage of testing. The customer
should use the product in a realistic way in an environment
similar to the operation environment, carrying out realisticbusiness processes.
MAINTENANCE
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There are two goals of Maintenance in SDLC: Increase theability of the software and avoidance of failures.
Better Adaptability of the Software SDLCs idea of
maintenance is very beneficial not only to the developers
but also for the software itself. With the use of available
data, developers will learn something new. In thisaccount, they will be able to apply this knowledge to the
software.
Although any developer would not wish for a problem, it
poses a great opportunity to learn more about the industry
and release updates to combat problems once and for all.
The end result of constant updates will be a better software
that can adapt to the changing environment. When a
business spends thousands of dollars on project
development, they expect more from the software.
Maintenance will ensure that the software will last for a
very long time.
Avoidance of Failures Maintenance does not only ensure
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prevent the same event from happening again. Software
will always have that learning property as long as they
are handled well by the developers. Developers will oftenwork on the problem and at the same time give updates on
the system to prevent failures. It is essential for developers
to release updates especially if the software is an important
part of the business.
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CONCLUSION
This project is designed to meet the requirements of a
Telecom Company. It has been developed in Java and the
database has been built in Oracle 9i with Weblogic as
server, keeping in mind the specifications of the system.
For designing the system we have used simple servlet and
jsp files.
Overall the project teaches us the essential skills like:
1. Using system analysis and design techniques.
2. Understanding programming logic in Html coding.
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FUTURE PROSPECTS
This project can be enhanced by giving SMS and
email facilities to customers whenever his bill is
ready.
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BIBLIOGRAPHY
1. Java 2 Complete Reference
(Herbert Schildt)
3. Oracle Database 9i
(Jason Price)