2. Introduction :
Different books and different organizations provide different definitions to web services.
1, A web service is a collection of open protocol
and standards used for exchanging data between
applications Or systems.
2, web services are XML – based information exchange
systems that use the Internet for direct application –
to – application interaction. These systems can
include programs,objects,messages or documents.
3. To summarize, A complete web services is,
therefore, any service that:-
Is available over the internet or private(intranet) networks.
uses a standardized XML messaging system.
Is not tied to any one operating systems or programming
. Language
Is self-describing via a common XML grammar.
Is discoverable via a simple find mechanism.
4. COMPONENTS OF WEB SERVICES:-
The basic web services platform is XML+HTTP.All the
standard web services work using the following components:-
SOAP (Simple Object Access Protocol)
UDDI (Universal Description,Discovery & Integration)
WSDL (Web Services Description Language)
5. E-mail:-
E-mail means from one computer user
to one or more recipients via network.
Advantages:-
1, It’s free:once you are online,there is no further expense.
2,Easy to reference:-send and receive messages and attachments
can be stored safely. It is a lot easier to organize emails than paper.
3,speed:- message to send?Done,under a second! E-mail is as fast
A form of written communication as any.
4,Gloabal:- web based emails means you can access your message
anywhere online.
6. 5,Eassy to use :- once you are set up ,sending out reviving messages
Is simple. That goes for a host of other e-mail functions. Data storage
and contacts can be accessed quickly and easily.
6,Easy to prioritize:-Incoming messages have subject lines that means you
can delete without opening . How much time does not save compared To
‘snail mail‘?
Disadvantages:-
1,Lacking the personal touch.
2,misunderstandings.
7. 3, No respite .
4,pressure to reply.
5,spam.
6,sucks up your time.
7,The viruses.
8. Online chat :-
Online chat may refer to any kind of communication
Over the internet that offers a real-time transmission of text messages from
sender to receives.chat messages are generally short in order to enable other
Participants to respond quickly.
9. CONCLUSION :-
Web Services are one of the key elements of the so-called
programmable web.they are extremely versatile software elements that
really have the potential to open up a new era in software. Web Services can
be effectively used to participants in and setup business to business
transactions. Web Services are exclusively based on open and commonly
accepted internet protocol.this is there major strength but also a significant
weaknesses . The strength, which enables true interoperability,comes at the
price of decreased speed , which is seriously affected by the band width .
Web Services are not good at every thing but certainly represent a category
of software agents that we are always looking for.
