wireless presence

7/29/2019 Wireless Presence

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WIRELESS PRESENCE & INSTANT MESSAGING

Co-ordinator:

Rajashekar.K BE, M Tech,MISTE

Under Guidance:

Kanyakumari D.P. B.E, M Tech, MISTE

HOD, Dept. of ISE :

Mr. B S Sunil Kumar BE, M Tech, MISTE

Presented by,

Vinay Kumar Belagavi 4GM03IS060


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Contents

1. Definition of wireless presence and IM2. Who is doing it?

3. Why it is significant?

4. Email Vs IM

5. Presencea real time enabler

6. IM augments & other form of messaging

7. IM & presence architecture

8. Example of jabber9. Applications

10. Conclusion

11. Bibliography


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Wireless Presence is the foundation on which the

real-time enterprise will be built.

Presence Gives IM Its Power

Presence


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Instant Messaging

Instant messaging (IM) is a form of online communication that

allows real-time interaction through personal computers or mobile

computing devices.

Users can exchange messages privately, similar to e-mail, or join group

conversations

The interactive nature of IM is closer to spoken conversation thanwritten correspondence, allowing users to communicate in a manner

that e-mail does not.


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Large and growing number of teens- todays and tommorrows

college students are the regular users of IM,both as personal

communication tool and for educational initiatives in high school.

As IM matures into an accepted means of communication and larger

number of Students arrives on campus as IM users.

Some institution library have set up an online reference desks with IM

applications and faculty have begun using the technology to facilitate office

hours.

Whos Doing it?


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How Does it Work?

Functionality ranges widely for IM applicatioins but typically users log into

service with a screen name or ID.

Most IM applications notify users when others join or leave and many

allow users to indiacate their status.

Once logged in, you can send messages to individuals or join IMsessions.Most IM Windows include an area where messages can be displayed

chronologically and a composition box where messages are typed.


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Why is it Significant?

Hundereds of millions of people use IM to stay connected.IM epitomizes

the notion of multitasking student,sending and receiving messages at all

hours from a wide range of spectrum devices.

For many students technology has become ingrained in daily life as

telephones are for older generations.

Many colleges and universities are working to incorporate IM into the

eucational aspects of students lives,rather than relegating into a social

function.


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Where is it Going?

The introduction of new consumer electronic devices and the growing

functionality of existing ones are broadening the scope of IM avialability.

Video chat applications are appearing,and IM networks are starting to allow

users to send messages to users who are not online and to see archived transcripts

of past messages.

New features are being added to allow richer conversations such as turn

taking,Collaboraive composition, and game playing.


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What are the implications ofteaching and learning

Students who use IM feel connected with peers and faculty and some

users have found that IM fecilitates semiformal distance relationships that

are difficult to create through media.

IM offers a higher education a new mode of communication, often for

relatively a low cost and without significant overhead for IT infrastructure.

IM expecting the technology to be their part of their educational lives.in

addition with IM used in many corporations hence its will extend beyond

college.


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E-Mail vs. IM 101

Standards-based

Inter-operable

Managed

Server-to-Server

Asynchronous

DNS-based

Mission Critical

Presence Dumb

Nonstandard

Not Interoperable

Unmanaged

Client-to-Client

Synchronous

VNS-Based

Value Questioned

Presence Smart

E-Mail IM


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Presence: Key Real-time Enabler

Real-time Interaction

Enhanced Mobile ApplicationsOn-Line Safe Deposit Boxes

Real-time Event Notification

Robotic Interaction MethodsYep,

Im

here

I see

youre

online

Presence will have

a million faces


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IM Augments Other Formsof Messaging

voicemail

m-IM

e-mail

voice

IM

SMS, MMS

preferences

device

capabilities

presence

always-on

Integrated

communications

Integrated

Messaging

synchronous

asynchronous

location

User Indicators

IM will dominate the messaging landscape


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IM and Presence Architecture

PresenceProvider

IM

Client

IM Client

Corp.Directory

Message

Archive

Encrypt

F

i

r

ew

a

l

l

I

M

Pr

o

x

y

PresenceGatewayPresenceDatabase

Enterprise

DNS

Lookup

IP

AddressUser

Name


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EIM Deployment Realities

Reliability

ManageabilitySecurity

Collaboration

App.Integration

Interoperability will be the Key Issue

IM Is Trusted

IM Becomes Mission Critical Presence embedded in

collaborative enterprise apps.;

app.-to-person; app.-to-app.

Encryption, archiving,

authentication, content

filtering, virus protection

Logging, tracking

Fast growth

Architecture

design


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What the Future Holds

Its about the network

Gateways wont scale - interoperability will suffer

The standards process will remain off-track

Large SIs will force interoperability

Network operators will dominate and affiliate

A federated IM namespace will emerge


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The Technology

Presence is becoming a key issue in the wired and wireless world. At the

most basic level, presence awareness lets users know when other people in

their contact list are online.

The concept has expanded from the initial online/offline description to

what we identify as rich presence. Thus, presence information can include

more user details.

A general notion of presence would answer the questions of Who(user), Where (location and device), When (preference and willingness),

How, (device capability) and Why (information exchange, leisure,

keeping in touch etc) .


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ContinuedAll widely used desktop IM applications like MSN Messenger, Yahoo!

Messenger and Jabber have the following basic features and some includemore advanced communication capabilities, like voice chat and file exchange:

Contact list management - Allows users to create lists of friends and

colleagues and organize them into groups, in order to be able to see their

presence information and contact them directly.

Person to person communication - is achieved through sending and

receiving instant messages. Usually messages can also be sent to users who

are offline, for later retrieval.

User database search - Users can search through a directory to find

others according to interests and profile


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ScreenshotsScreenshots illustrating different presence states in desktop IM

applications: ICQ Messenger , Yahoo! Messenger and MSN Messenger.


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Screenshots of Yahoo! Messenger for mobile phones, which is based on

SMS, using specified commands and codes to organise contact lists and

send instant messages

Major desktop IM providers have already formed partnerships with

wireless carriers to add SMS (Short Message Services) functionality to

their systems.

Currently IM is also implemented on mobile phones through WAP-based clientand also as a separate Java application for Java enabled mobile phones.

Presence is the key feature that differentiates wireless Instant Messaging to

the existing SMS messaging facility on mobile phones. Without presence, the

user does not know of a persons availability or device status.


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ApplicationsMobile messaging standards(SMS - EMS- MMS)

Messaging on mobile phones is rapidly evolving from pure text messages

(SMS) to messages that resemble multimedia presentations (MMS

Multimedia Messaging Service) and can include graphics, data, animations,

audio clips, voice transmissions and short video sequences.

In between SMS and MMS we have the Enhanced Messaging Service(EMS), which can contain combinations of text, simple images and

melodies. The text of an EMS message can be formatted.

While IM has already been combined with SMS, it will be more

successful and easy to use when we will have persistent always oninternet connectivity on mobile phones.


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Continued

Java application development

Sun Microsystems Java technology on mobile phones is at an

introduction phase, at least in Europe.

In Japan, however, Java has successfully been deployed on i-mode

platform. Interactive content on i-mode is more advanced and graphically

interesting than most mobile content available in Europe (e.g. users can

send full color animated messages with cartoon characters).

The J2ME (J ava2 Platform, Micro Edition, 2001) technology is a drivingforce for content development on mobile phones, personal digital assistants

and other handheld devices.


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Other constraints

Privacy concerns

-As presence technology becomes more ubiquitous, personal information canbe accessed by others at any time, bringing not only a sense of being

connected, but new possibilities of surveillance as well.

-By observing the activity that takes place on contact lists, people can

understand their contacts daily routines (e.g. arrival at work, being away

from the desk etc).

-Although basic IM systems allow users to become invisible to others or toblock communication from certain users, more advanced presence

management systems will be required, particularly as IM moves gradually to

the wireless domain.


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Security

Security is also a very important factor, particularly for business use of

IM. Major desktop IM services (AOL, Yahoo, MSN etc) have proved to be

unsuitable for corporate environments because of their centralized server

architecture.

Sensitive data can be exposed and there are virus risks as well. The issues

in security involve client to client encryption, client to server and server to

server encryption.

Separate enterprise solutions are common practice to ensure security in

professional settings.


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Usability

Handheld devices have limited text input and display capabilities. For

wireless IM, this means a lot of menu navigating and key pressing before

sending an instant message.

mobile phones gradually become more sophisticated, with small

complete keyboards, which have proved to be a convenient input

mechanism for handheld devices.


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Example

JabberJabber Project works against incompatibility by providing an open

and extensible IM standard. In early 1998, the Jabber project with the

simple hope of a cross platform IM system.

Today, Jabber is a set of open, XML-based protocols for which there

exist multiple implementations. Jabber compliant servers and clients

provide instant messaging and presence services on thousands of

domains worldwide.

The Jabber platform is free, open source and unlike major IM solutions

that depend on a centralized server, Jabber employs a distributed server

architecture.


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Screenshot of BuddySpace client

A composite view of custom maps displaying the presence information of

people in contact lists.


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Future work

Wireless IM and Presence can be useful for Higher and Further Educationin assisting group communication and collaboration, much like desktop IM

has already done. Little research has been carried out in this new field.

We are still uncertain about how exactly the industry will be formed in the

future and when the interoperability issue will be resolved.

The future of wireless IM and Presence depends upon the establishment and

general acceptance of standards for the exchange of presence information and

instant messages between different service providers, networks and devices.

The open source community through the Jabber project and the newly

formed working group and we can expect many significant applications of

this technology in the near future.


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Conclusion

Wireless presence and Instant Messaging are clearly very promising and

have already attracted a great interest.

The gradual establishment of the third generation of mobile network

technology will facilitate persistent always-on connection with friends,

family and colleagues through IM.

Presence is becoming increasingly important and currently moving

beyond IM to a variety of domains.

Hence the emergence of innovative applications on mobile phones based

on presence, including information and location based services,

entertainment applications and multiplayer games.


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BIBLIOGRAPHY

1. www.google.com

2. www.wikipedia.com

3. www.ietf.com


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