final corporate chat docu

8/3/2019 Final Corporate Chat Docu

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Corporate

MailServer

Documentation

Swapnil


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COMMUNICATION SERVER

IndexIndex

1. Overview of the project

2. Existing System

2.1. Existing System

2.2. Limitations

2.3. Need for computerization

3. Proposed System

3.1.1. Proposed system

3.1.2. Objectives

3.1.3. Diagrammatic Representation3.1.4. Scope

3.1.5. Permission matrix

3.1.6. Features

3.1.7. Advantages

3.1.8. Enhancements

4. Requirement Analysis

4.1. Fact Finding Techniques

4.1.1. Questionnaire

4.1.2. Interview

4.1.3. Observation

4.1.4. Record review

4.2. Feasibility Study

4.2.1. Technical Feasibility

4.2.1.1. Hardware Software requirement

4.2.2. Economic Feasibility

4.2.3. Operational Feasibility


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5. System Analysis Diagrams

5.1. Process Chart

5.2. Data Flow Diagram

5.3. Entity Relationship Diagram

5.4. Data Dictionary

6. Design Specifications

6.1. Input Screen with Interactivity

6.2. Output Screen

7. Technology Used

7.1. JAVA (JDK 1.5)7.2. JSP TECHNOLOGY

7.3. WEB SERVER TOMCAT

7.4. JDBC

7.5. POSTGRESQL

Bibliography


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Overview

An MIS is an automated system which presents information, both

internal and external to the business that aids in making a

specific set of routine decisions.

StrategicMgmt

TacticalManagemen

t

Operational Mangement

Business Operations (Sales,Purchase,Personal,Production,Recruitment )

MIS(DSS, EIS )

Operational Info Sys

Big DocumentsCreated

Regular Reports

Exception , Ad-hocReports

Summary Reports,Projections, ModelsTop Management

DepartmentalManagement

SupervisoryLevel

Reports

Decisions

Management Information System

A management information system is an integrated user-machine

system for providing information, to support the operations,

management analysis and decision making functions in an

organization


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The system utilizes Computer hardware and software, Manual

procedures, models for analysis, planning control and decision

making

Information is vital component of the organizational functioning. It

would be impossible for any manager to take decision without

information.

Managers are involved in managerial tasks such as planning,

decision making, monitoring, controlling etc. Information is used

as input for various managerial tasks. Getting right kind ofinformation in right form at right time is very important.

One of the key factors of successful business operation is well-

thought staff communication system. Good managers know that

each minute of work time spent in vain means profit loss. That is

why building fast and convenient personnel communication

environment is so important, these days.

As organization expands scale of data generation, data collection,

data analysis, report generation increases significantly. Hence

essentially MIS has to be systematic and organized way of

providing informational support to the managerial functions and

managers of an organization. So that using computers managers

can work efficiently and effectively by quick decisions and

effective and extensive communication network.


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Common means of communication, such as verbal instructions,

phone conversations and e-mail messaging, are far from

perfection when it comes to delivering short messages to multiple

individuals. Internet-based instant messaging solutions are good

but they rely on third-party services which makes the entire

system unreliable in question. The best solution shall be an

instant messenger software working in local network.


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Existing System

Communication System is known to all of us. Because of the

development in the areas of the industries, organizations need a

communication system which could provide sharing of

organizational information efficiently. Some services such as

message books, employee worksheets, time sheets are used to

maintain the organizational information.

So, in order to share information about the entire

organization communicating devices such as telephones, cellphones, fax and computers are used. These devices are available

in almost all IT organizations certainly.

Cell phones are used to send sms. Using fax machine we can

share important documents belongs to the organization. Through

internet we can chatt as well send messages using messaging

services like email, gmail chat , orkut etc.

The existing systems for chatting such as Yahoo!, MSN provide

their own messaging clients. These clients need to be

downloaded from their website and to be installed on the PC to

use it. Once the client has been installed on the PC it

communicates with the respective server. These type of systems

are widely used by millions of users worldwide using services

such as MSN, AOL, Yahoo! and many more..

The functionalities of most chat systems are similar:


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Users type messages into a message input area, and press

enter. The message is sent to all participants and displayed at

the bottom of a chat history area (pushing previous messages

up).The name of the message author is displayed in front of the

message content. The term standard text chat systems refers

to text chat systems based on above functionalities.

Emails: emails are a good form of communication because they

are a free version of mail,

Telephoned meetings: this is a good form of communication but

over long distance (international is costly)

Forum board: It is constant so that any time any one has an

opinion or an idea they can post it up for the rest of the team to

see.

Face to face meetings: these are good for getting things done butare not always appropriate.

NEED(DISADVANTAGES)

As organization expands scale of data generation, data collection,

data analysis, report generation increases significantly. Hence

essentially MIS has to be systematic and organized way of

providing informational support to the managerial functions and

managers of an organization. So that using computers managers


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can work efficiently and effectively by quick decisions and

effective and extensive communication network.

After identifying this need we have decided to design application

which will support designation hierarchy for top to bottom and

bottom to top communication with messenger and file transfer

facility.


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Proposed system

Instant messaging typically boosts communication and allows

easy collaboration. In contrast to e-mails, the parties know

whether the peer is available. Most systems allow the user to set

an online status or away message so peers get notified whenever

the user is available, busy, or away from the computer. On the

other hand, people are not forced to reply immediately to

incoming messages. This way, communication via instant

messaging can be less intrusive than communication via phone,

which is partly a reason why instant messaging is becoming more

and more important in corporate environments. However, not all

popular systems allow the sending of messages to people not

currently logged on (offline messages), a vital feature when to be

used as a less formal e-mail replacement.

It is possible to save a conversation, so as to refer to it later,

which is not possible by telephone. Also, the fact that instant

messages typically get logged in a local message history closes

the gap to the persistent nature of e-mails, facilitating quick, safe,

and persistent exchange of information such as URLs or

document snippets, which can be unwieldy when done using

inappropriate media such as phone. Instant messaging has been

known to greatly improve (mostly) children's typing abilitya skill

that is becoming increasingly important for the benefit of today's

youth.


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The system is a customized application.

The data handling is automated.

The system is more fast and efficient.

The work complexity is minimized.

It is a web application hence offers more flexibility.

The usage is global. Application can be accessed from

anywhere at anytime.

The system can handle large data as per requirement as

capacity of PostgreSQL is definitely more than other.

Screens are more task oriented and user friendly. Screens

are designed as per the user requirement.

COMMUNICATION SERVER works as a normal COMMUNICATION

SERVER like yahoo and Gmail. In this we can send mails and can

maintain Inbox and Outbox. Todays life it is very important to

make communication fastely, easily.

Therefore for convenience we use messengers but we

develop this COMMUNICATION SERVER for a single company

basic, which maintain all the addresses of employee in the one

company so it is very much convenient to send mails instantly

inside a department or in the company.

Here we maintain Outbox, which stores all the record send

by user that is record of outgoing mails, which can be use asproof for some important documents in the future.

As well as here we maintain Inbox, which stores all the

record sent by other employees that is incoming mails. Therefore


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Mail Server is very much important for communication between

the departments in a company.

We can send mails and communicate with other

employees easily and in less time.


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SCOPEMODULES

0.0 COMMUNICATION SERVER

1.0 MASTER FILE UPDATION

1.1 DEPARTMENT DB MAINTENANCE

1.1.1 NEW DEPARTMENT

1.1.2 DELETE DEPARTMENT

1.2 DESIGNATION DB MAINTENANCE

1.2.1 NEW DESIGNATION

1.2.2 CANCEL DESIGNATION

1.3 DEPARTMENT DESIGNATION DB MAINTENANCE

1.3.1 NEW ASSOCIATION

1.3.1.1 DEPT SELECTION

1.3.1.2 DESIGNATION SELECTION

1.3.1.3 VALIDATE POSTS

1.3.1.4 VALIDATE SUPER ORDINATE DESIGNATION1.3.1.5 UPDATE DEPT DESIGNATION DB

1.3.2 CHANGE ASSOCIATION

1.3.2.1 DEPT SELECTION

1.3.2.2 DISPLAY DESIGNATION

1.3.2.3 CHECK DEPENDECIES

1.3.2.4 VALIDATE CHANGES

1.3.2.5 UPDATE DEPT DESIGNATION DB

2.0 EMP ADMINISTRATION

2.1 REGISTRATION

2.1.1 GENERATE EMP-ID

2.1.2 VALIDATE EMP DETAILS

2.1.3 VALIDATE DEPARTMENT AND DESIGNATION DETAILS


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2.1.4 VALIDATE PASSWORD PROCEDURE DETAILS

2.1.5 UPDATE EMP DB

2.2 MODIFICATION

2.2.1 EMP SELECTION

2.2.2 DISLAY EMP DETAILS

2.2.3 VALIDATE CHANGES

2.2.4 ASK CONFIRMATION

2.2.5 UPDATE EMP DB

2.3 DELETION

2.3.1 EMP SELECTION

2.3.2 DISPLAY EMP DETAILS

2.3.3 CHECK DEPEDENCIES

2.3.4 CONFIRM DELETION

2.3.5 UPDATE DB

2.4 CHANGE PASSWORD PROCEDURE

2.4.1 LOGIN

2.4.2 VALIDATE PASSWORD

2.4.3 VALIDATE NEW PASSWORD

2.4.4 UPDATE EMP DB

2.5 FORGOT PASSWORD PROCEDURE

2.5.1 VALIDATE EMAIL

2.5.2 VALIDATE QUESTION AND ANSWER

2.5.3 VALIDATE NEW PASSWORD

2.5.4 UPDATE EMP DB

3.0 CHAT PROCESS

3.1 LOGIN PROCEDURE

3.2 UPDATE ONLINE MBR LIST

3.3 CHECK DESIGNATION

3.4 DISPLAY AVAILABE CHAT TYPES

3.5 CHAT TYPE SELECTION


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3.6 DEPT CHAT

3.6.1 CHECK DEPT

3.6.2 DISPLAY DEPT ONLINE EMP LIST

3.6.3 EMP SELECTION

3.7 HIERARCHICAL CHAT

3.7.1 CHECK DESIGNATION

3.7.2 DISLPLAY SUB ORDINATE DESIGNATIONS

3.7.2.1 DISPLAY ONLINE EMPS

3.7.2.2 EMP SELECTION

3.8 DESIGNATION CHAT

3.8.1 DISPLAY SAME DESIGNATION EMP LIST

3.8.2 DISPLAY ONLINE EMP LIST

3.8.3 EMP SELECTION

4.0 REPORT GENERATION


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Benefits of COMMUNICATION

SERVERCOMMUNICATION SERVER addresses the complexities mentioned

above of the existing systems. COMMUNICATION SERVER avoid

the basic complexity of the requirement of installing the client on

the PC by adopting the web application model. COMMUNICATION

SERVER is an web application which can be deployed on a we

server, so that it accessible to all the PC on the network.

COMMUNICATION SERVER doesnt require installation of any sort

of client on the PC to use the service. Which means that the

application has to deployed on only one location from which it is

accessible everywhere through network and does not require

multiple deployments as a case with normal desktop applications.

COMMUNICATION SERVER, being an web application, is accessible

from any PC with a web browser and network access. This

eliminates the requirement of installation of clients on every PC.

Thus COMMUNICATION SERVER accessible from any PC, anytime,

anywhere .

COMMUNICATION SERVER is a website for instant messaging from

absolutely anywhere. Whether youre at home, on campus, at

work, or traveling foreign lands, hop over to COMMUNICATION


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SERVER any computer to access all of your buddies and chat with

them, no downloads or installs required, for free!

Other Advantages

1. Fast & Efficient: Announce a call or meeting with a quick

message to a partner, colleague or co-worker's computer

screen without disrupting calls or meetings. Get a quick

reply.

2. Low Maintenance: Requires no server or administration.Two-minute install on each machine and you're done!

3. Discreet: Silently announce a call... tell someone another

call is holding without disturbing them. Discretely inform

someone their visitor has arrived or a meeting is about to

begin. Eliminates interruptions and wasted walking or

shouting.

4. Encourages Teamwork: Discretely get an answer... While

still on the phone, get a crucial piece of information from a

co-worker or ask them to join a conversation - all without

disrupting the phone call.

5. No chaos in message transfer

6. Messages are stored with date, time and sender details

hence can considered as valid information.


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7. Communication becomes easy

8. Saves time, money as well as papers

9. No need to type command to transfer text

10. No operating cost, No maintenance cost.

11. System is very easy to use which will definitely improve

users efficiency.


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Features

The system will be easy to use because every drawback of the

existing system is covered and removed. Web based application

made in java and PostgreSQL is being developed to do the project

management. The graphical user interface makes the system

attractive and easy to operate. The system is developed as per

the requirement. The objective of this component are,

The system is a customized application.

The handling is automated.The system is more fast and efficient.

The work complexity is minimized.

It is web application and hence it gives more flexibility.

The usage is global. Application can be accessed from

anywhere at anytime within the organization.

The system can handle large data as per requirement as

Capacity of PostgreSql is definitely more than other.

Screens are more task oriented and user friendly.

Screens are designed as per the user requirement.

Other Features

Office Messenger comes with a variety of handy features, like

Our Intra messaging utility offers unique facility guaranteeing

no unauthorized person ever reads personal correspondence.

All messages are logged, so there is no risk of losing a

message.


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All correspondence can be looked up at any time.


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Requirement Analysis

Requirement analysis is the determination of the

requirements for a new system. Requirement analysis is a

software-engineering task that bridges the gap between system

level requirements and software design. Requirements

engineering activity result in the specification of softwares

operational characteristics (function, data and behavior) indicate

softwares interface with other system elements and establish

constraints that software must meet.

A requirement is a feature that must be included in a new

system. It may include a way of capturing or processing a data,

producing information, controlling a business activity or

supporting a management. The determination of requirements

thus entails studying the existing system and collecting thedetails about it to find out what these requirements are.


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Fact-Finding Techniques

A kind part of feasibility analysis is gathering information

about the present system. These include the questionnaires,

interview, record review and observation. The analyst must know

what information to gather, to make of it. The proper use of tools

for gathering information is the key to success analysis.

We used four fact finding techniques in our system analysis:

1.Questionnaires 2.Interviews 3.Record Reviews 4.Observation

Questionnaires

A questionnaire allows analyst to collect information from

group of individuals who may or may not be using the system

thus resulting sometime in irrelevant data and redundancy. And

certainly nobody has a time to complete the questionnaire. So,we have decided to go for the interview.

Interview

Analyst use interview to collect information from individual

who they consider should be the sources, which are current user

of the existing system. The system analyst has a face-to-face

conversation with the users of the system and fixed set of

questions is prepared.

So, considering this fact important for our project, we had

conversation with Mr. XXXXXX (xxxx) XXXXX Pvt. Ltd. We have


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discussed with him about the communication system they are

using in their organization. And also about the hierarchy they

have maintained in the system. This was a very great help for us

in developing the scope of our project.

We used this technique frequently in the system analysis after

questionnaires. The interviews were unstructured. We chose

some people from offices and talked about message book system.

This helped us understand all the stages involved in this activity.

Record Review

Many kinds of records can provide analyst with valuable

information about the organizations and operations. It includes

analyzing the previous operations in the company and forecasting

the new further schemes This was the most beneficial technique

for us while making our screens and database. We studied the

existing message books, web based mail box structures etc and

other documents related with the system.

Observation

Observation allows analyst to gain information they cant

get from any other fact-finding method. Through observation,

analyst can obtain information about the activities carried out.

Their analysts have to themselves observe the activities carried


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out by the system and whether specified step all actually

followed. This can also be called on spot observations.

While finding the facts we keenly observed the usage of

communication documents and other record keeping methods.

Observations helped us in finding out the actual way of

functioning apart from the ideal or desired. This helped us in the

interface design.

We have visited following websites about the instant

messaging, messaging facilities like email, Yahoo messenger,

gmail chatt, Jabber etc. From the information we have collected,

we developed our messaging tool that provides better facilities

than others messengers provide.

Software and Hardware

Requirements: The system developed using the JSP and JDBC, which is the

common platform of the organization and can run smoothly

without any extra overheads to the organization. Also PostgreSQL

is freeware software that can be also feasible for any

organization.

For our system this is as follows

Hardware and Software RequirementHardware and Software Requirement

For better performance

Hardware Requirement


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1. Processor P-3 or Higher

2. Ram 256 Mb

3. Hard Disk 20 GB

4. Internet Connection

Software Requirements

1. Operating System. :Certified distributions of Linux

2. Front End : Java JSP

3. Backend : Postgresql.4. Web server :Tomcat

Based on findings of the investigation, we designed input/

output screens with input fields or output text with different

possibilities of validations and their acceptability to the user

gauged and correction is done wherever necessary. As our project

works on linux networking environment , there has to be a linux

machines having on the network .


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Feasibility study

The important outcome of the requirement investigation is the

determination that the system requested is feasible. There are

several aspects of the feasibility study , some of the we have

done for our project.

Preliminary investigations examine project feasibility; the

likelihood the system will be useful to organization. Their

details are as follows

Economical Feasibility

System works on internet as well as intranet. The system is

designed and developed in such a way so as to cut off the

expenditure on paper as much as possible.

We have programmed this software under LINUX java

environment which are freewares and OS can change to

Windows. So minimum investment will be required to implement

this project. So comparing with the investment needed ,

advantages of computerization stated in the proposed system are

definitely important though it is difficult to evaluate them on

economic basis. So an organization will be definitely benefited a

lot directly and indirectly.


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Operational Feasibility

An organization must have computer trained staff. Our input

screens are familiar with their existing environment. One or Two

hours of training is sufficient to train the users of this system.

The system will be web based and the interfaces will be user

friendly. All the users of the system are computer experts and

hence the operation of the system would enhance the speed of

work and not create any hindrance.


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Technology Used

JSP (Java Server Pages):

"JSP technology is an extension of the servlet

technology created to support authoring of HTML and XML

pages. It makes it easier to combine fixed or static template

data with dynamic content."

JSP is comparable to other technologies such as PHP and

ASP, which combine programming/scripting with a markup

language like HTML. The key difference being the

programming language of choice, for example, PHP uses a

C/C++/Java hybrid, ASP uses VBScript, and JSP utilizes the

full power of the Java programming language. There have

been many comparisons of these technologies, and each has

its place in the astute developer's toolbox.

A JSP page is executed by a JSP engine, which is installed in

a web server or a JSP-enabled application server. The JSP engine

receives requests from a client to a JSP page, and generates

responses from the JSP page to the client. JSP pages are typically

compiled into Java Servlets. When a JSP page is first called, if it

does not yet exist, it is compiled into a Java Servlet class and


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stored in the server memory. This enables very fast responses for

subsequent calls to that page.

In a simple implementation, the browser directly invokes a

JSP page, which itself generates the requested content (perhaps

invoking JDBC to get information directly from a database). The

JSP page can call JDBC components to generate results, and

creates standard HTML that it sends back to the browser as a

result.

This model basically replaces the CGI-BIN concept with a JSP page

(compiled as a Java Servlet). This method has the following

advantages:

It is simple and fast to program

The page author can easily generate dynamic content based

on the request and state of the resources.

This architecture works well for many applications, but it does not

scale for a large number of simultaneous Web-based clients

accessing scarce enterprise resources, since each must establish

or share a connection to the content resource in question. For

example, if the JSP page accesses a database, it may generate


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many connections to the database, which can affect the database

performance.

In another possible configuration, the Web-based client may

make a request directly to a Java Servlet, which actually

generates the dynamic content, wraps the results into a result

bean and invokes the JSP page. The JSP page accesses the

dynamic content from the bean and sends the results (as HTML)

to the browser.

This approach creates more reusable components that can be

shared between applications, and may be implemented as part of

a larger application. It still has scalability issues in terms of

handling connections to enterprise resources, such as databases.

Portability across platforms and servers

Robust exception management and memory management

Access to the wide range of Java APIs (JDBC, JavaMail,

etc.)

Portable, reusable logic components

High performance for multiple concurrent requests

Easy deployment and maintenance


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Tomcat Web Server:

Tomcat is a commercial-quality server solution based on the

Java Platform that supports the Servlet and JSP specifications.

Managed by the Apache Jakarta Project, it is developed in an

open and cooperative fashion.

Tomcat is a free, open-source implementation of Java Servlet

and JavaServer Pages technologies developed under the Jakarta

project at the Apache Software Foundation. Tomcat is availablefor commercial use under the ASF license from the Apache web

site in both binary and source versions.

Presentation Beans:

A Java Bean is a reusable software component that can be

visually manipulated in builder tools.


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About JavaBEANS

Definition

JavaBeans are software components written in the Java

programming language.

The JavaBeans specification by Sun Microsystems defines

them as "reusable software components that can be

manipulated visually in a builder tool.

JavaBean conventions

The class should be serializable(able to persistently save and

restore its state).

It should have a no-argument constructor.

Its properties should be accessed using get, set and other

methods following a standard naming convention.

It should contain any required event-handling methods.

Use of JavaBeans

Support for introspection allowing a builder tool to analyze how a

bean works.

Support for customization allowing a user to alter the appearanceand behavior of a bean.


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Support for events allowing beans to fire events, and informing

builder tools about both the events they can fire and the

events they can handle.

Support for properties allowing beans to be manipulated

programmatically, as well as to support the customization

mentioned above.


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Why use of JavaBeans in our Application

For creation of web page components in FORM Creation process

For setting properties of selected components using set method

For getting properties back in creation of an XML file


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JDBC

JDBC (Java DataBase Connectivity) is a front-end tool for

connecting to a server & and is similar to ODBC(Open DataBase

Connectivity) in that respect. However JDBC can connect to only

Java clients & it is uses ODBC for the connectivity. JDBC is

essentially a low level Application Programming Intereface.Itb is

called a low level API since any data manipulations, storage &

retrieval has to be done by the program itself.

JDBC provides a common database-programming API

for Java programs.

Reasons for preferring JDBC

1.ODBC can not be directly used with Java because it uses C

interface.

2.ODBC makes use of pointers whereas pointer concept is totally

removed from Java.

3.ODBC requires manual installation of ODBC driver managers &

drivers on all client machines. Where as JDBC drivers are written

in Java & JDBC code is automatically installable.

4.JDBC API is natural Java Interface & built in on ODBC.

Java Database drivers:


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1.JDBC-ODBC driver

-This driver has to installed on each of the client machine.It

is not advisable to use this driver for large networks.

Interfaces in java.sql package:

1.Driver

public interface Driver

The interface that every driver class must implement.

The Java SQL framework allows for multiple database

drivers.

Each driver should supply a class that implements the Driver

interface.

Client machine

JDBC-ODBC

Bridge

ODBC driver

Vendor DB library

Server machine

Database Server


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When a driver class is loaded ,it should create an instance of

itself and register it with the DriverManager. This means that

a user can load and register a driver by calling

Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);

2.Connection

public interface Connection

A connection (session) with a specific database.

Within the context of a Connection, SQL statements are

executed and results are returned.

Note by default the Connection automatically commits

changes after executing each statement. If auto commit has

been disabled, the method commit must be called explicitly;

otherwise, database changes will not be saved.

Methods

commit()rollback()

void setAutoCommit(Boolean autoCommit)

getAutoCommit()

createStatement()

prepareCall()

prepareStatement()

DatabaseMataData getMetaData()

isClosed()

3.Statement

public interface Statement


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The object used for executing a static SQL statement and

obtaining the results produced by it.

Methods:

ResultSet executeQuery(String query)

This method is used to read a data from database.

i.e. making no change in the database. It returns

the result set.

int executeUpdate(String query)

this method is used to execute SQL statements

that do not return any result set. I.e. when the

database is to be modified, it is used. It returns an

integer that determines how many records were

affected by the SQL statement.

4.PreparedStatement

public interface PreparedStatement

It enables you to execute dynamic SQL statements.

This interface lets you to set the various parameters in

dynamic statements with specified data

values.

A SQL statement is pre-compiled & stored in a

PreparedStatement object.

5.ResultSet

public interface ResultSet


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A table of data representing a database result set, which is

usually generated by executing a statement that queries the

database.

A ResultSet object maintains a cursor pointing to its current

row of data. Initially the cursor is positioned before the first

row. The next method moves the cursor to the next row, an

because it returns false when there are no more rows in the

ResultSet object, it can be used in a while loop to iterate

through the result set.

A default ResultSet object is not updatable and has a cursor

that moves forword only. Thus, it is possible to iterate

through it only once and only from the first row to the last

row.

Seven steps for using JDBC

1. import java.sql.*;

2. Register the Driver

Class.forName(sun.jdbc.odbc.JdbcOdbcDriver)

3. Connect to the database

Connection

cn=DriverManager.getConnection(jdbc:odbc:dbname,u

name,pswd);


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4. Create a statement

Statement /PreparedStatement/CallableStatement

5. Execute the statement

executeQuery(),executeUpdate(),execute()

6. Retrieve the result

7. Close statement & connection

rs.close()/cn.close()

LimitationsThere are several limitations of existing systems

These services required installation and customization not at all

possible, and always flooded by advertisements. Message book is

time consuming and a kind of obsolete, phones and cell phones

are costlier for general messaging and typing is very

inconvenient, Voice mails are not at all popular, and sms

technology is quite costlier and has its own storage limits

The system is time consuming.


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Low quality maintenance.

Absence of message saving facility on chat systems

Non standard and absence of customization.

Less effective and less efficient reports.

The system is not a customized application.

Screens are not task oriented and hence less satisfactory.

The existing systems used are basically desktop applications.

These clients need to be installed on the PC in order to use the

service. So it means that the user will not be able to use theservice from any other PC as long as the client is not installed on

that system also.

The installation of the client is a tedious process with might be a

bit hard for the end user. Also it decreases the usability of the

system as the user is not able to access the system from

anywhere. If he wants to do so, he will need to install the client on

the PC on which he wants to use the system.

Future Enhancement1) Voice Chat can be added

2) File transfer can be possible as a attachment

3) Report generation with query facility can be given


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BIBLIOGRAPHY

Books referred during project development:

1. Comlpete Reference Java 2.

By Nauguto Schilt.

2. Java 2 (Black Book).

By Steven Holzner.

3. Comlpete Reference SQL.

By Groff Weinburg.

4. JDBC & Java.

By George Reese5. Software Engineering

By James Senn

Other reference Material

Java docs

Company web site