Vtalk_Presentaion

7/31/2019 Vtalk_Presentaion

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Presented by:-

Monika Yadav, Neelam MauryaParul Chauhan, Pawan KumarPrashant Raghav, Priti Chauhan

MCA 4th Sem


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Introduction

Objective

Feasibility analysis

Project application

Application architecture

Data flow diagram

E- R diagram

Hardware & Software specification

Module details


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This project entitled as V Talk V ChatV Shareis used for chatting with remote clients or userson internet or a local network.

Chatting, is a method of using technology tobring people and Ideas together despite ofthegeographical barriers.

It is made up of 2 applications the client application,which runs on the users Pc and server application,which runs on any Pc on the network. To startchatting client should get connected to server.


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Proposed system enables thecommunications pertaining to a twoway electronic communicationssystem that permits thecorresponding participants in

different locations to engage in theequivalent of face to facecommunications to be conducted asif all of them are present in theroom.

It provides the file sharing facility &chatting. Polling and whiteboard areother important features of thisproject.


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1. Improve quality of communications.

2. Increase productivity among end users.

3. Improve business relationship with customers.

4. Reduce total communication costs.

5. No need of traveling to the destination physically.

6. To participate in group discussion


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Problem exist in system:

Most of the current chatapplications are only text basedand few are capable of transferringtinny images.

Solution to the problem:

To solve the inconveniences asmentioned above, an V-TALK V-CHAT V-SHARE is proposed. Theproposed system`s premier feature

is its whiteboard drawing utility.


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1. Provides a good user interface with all the facilities of a chatapplication

2. Each user have his\her unique user-id.

3. User can communicate with any other user, who is online.

4. User gets a list of online users.

5. User can select any other user and send a offline message too.

6. Provides whiteboard drawing utility.


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CLIENT 1 CLIENT 2SERVERMaintain chat

application

Message

Send

Message

Send

Message

received

Message

received

O level DFD:-


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Registration

SERVERMaintain chat

application

ValidationMessage

Sent

Verify client

CLIENT 1

Registered ClientChat_Msg_Info

User Info

Enter User Name& Password

Valid/Not ValidEntering

UserDetails

MessageSend

Registeredor error

SentMessage

SentMessage

MessageRecieved


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SERVERMaintain chat

application

CLIENT 1sender

Validation CLIENT 2receiver

Verifyclient

Messagesent

Registration

NEWCLIENT

CLIENT 3offline

Chat Room

Chat Msg

User Info

Group Info

Enter User name &

password

Valid / invalid Enter User name &password

Valid / Invalid

Sent

Message

MessageSend

Sent

Message

MessageReceived

MessageReceived

EnterUser details Registered

or Error


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Applicationarchitecture

Front End JAVABack End - SQL Server

JDBC driver is used toprovide the connectivitybetween JAVA applicationand Microsoft SQL Server.


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The java.net package providesthe classes for implementingnetworking applications.

Stream Sockets allow aprocess establishes a connectionto another process.

java.awt package is muchuseful for creating the userinterface


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USER

CHAT_MSG

CHAT_ROOM

GROUP

MEMBEROF

ENTERS

SENDSOR

RECEIVE

BELONGSTO

USER ID

PASSWORD

GROUP ID

USER_ID

SENDERID

RECEIVERID

RECEIVERID


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USER INFO TABLE

GROUP INFO TABLE

User_Id(pk)

First_name Last_name

Screen_name

Password Reg_Date

Reg_IP

Group_Id

(pk)

Group_nam

e

Reg_

Date

Reg_User

(fk fromUSER)

Modification

_ Date

Modifying_User

(fk fromUSER)


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CHAT_ROOM INFO TABLE

CHAT_MSG HISTORY TABLE

Chat_Room_ID (pk) Creation_Datetime Termination_Datetime Status

Session_Id(pk)

Date Sender(fk fromUSER)

Receiver(fkfrom USER)

Chat_room_id(fk fromCHAT_ROOM)


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Client Registration:-Client has to first register himself in the serverto begin chatting.

Chatting module:-Client_1 sends the message for the receiverclient_2. The sent message first goes to sever,and then server verifies the client_2 address

and sends the message to the client_2.Client_2 is either online or offline,if client_2 is online then it receives the messageimmediately or if client_2 is offline then themassage is displayed to the client_2 whenhe/she logged in next time.


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Client logout:-Client logs out of chat, server updatesthe user`s status and notifies to all other logged in clients.

Server Shutdown:-

Server shuts down by sending message andcloses all the threads running with application.

Create New Group:-A client can create a new group by specifying

the name of group. The group name must be uniqueso that any two group names will not collapse.

Chat_History:-A session id is created every time chatting is started between two clients.

The history of chatting will save in a notepad file and the address of thatfile will store in database so that it can be recall to check the chat history.


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This project can be enhanced by implementing it on Internet sothat it can be used worldwide.

It can be enhanced in the field ofvoice and video chatting using VoIP protocol.

Routing phone calls over existing

data networks to avoid the need for

separate voice and data networks.

The ability to transmit more than one

telephone call over a single broadband connection.


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Documents

Vtalk_Presentaion