This document discusses how to create a web service. It defines a web service as a method of communication between electronic devices over the World Wide Web that is "always on". It describes the key components of a web service including the service broker, SOAP, service provider, requester, WSDL, and UDDI. It provides details on SOAP and how it uses XML to allow applications to exchange information over HTTP. The document is intended to provide an overview of the basic concepts and components involved in creating a web service.

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baabtra as a part of mentoring program. This is not official
document of baabtra –Mentoring Partner
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3. Creating a Web Service
Abhishek H Menon
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4. Web Service
• A web service is a method of communication
between two electronic devices over the
World Wide Web(www). A web service is a
software function provided at a network
address over the web or the cloud, it is a
service that is “always on”.
• It is a software designed to support
interoperable machine-to-machine interaction
over a network.

6. Components
• Service Broker
– The service broker is meant to be a registry of services, and stores
information about what services are available and who may use them
• SOAP
– A simple XML based protocol to let applications exchange information
over HTTP
• Service Provider
– Is considered as the remote server in web service.
• Requester
– Considered as the client.

7. Components
• wsdl(Web Service Definition Language)
– XML based interface definition language used for
describing the functionality offered by the web
service. Like method signature in the
programming language.
• UDDI
– Platform independent (XML)-based registry by
which businesses worldwide can list themselves
on the Internet, and a mechanism to register and
locate web service applications.

8. SOAP
• Simple Object Access Protocol
• Format for sending messages over Internet between
programs
• XML-based
• Platform and language independent
• Simple and extensible
• Stateless, one-way
– but applications can create more complex
interaction patterns.

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