Web Service Technology
Web Service is seen as a technology that brings a revolution to B2B (Business to Business) and B2C (Business to Customer) services. The basic value of Web service development is based on providing standard methods of access for composition systems and legacy systems. Software written in different programming languages and running on different platforms can use the Web service to convert data through the Internet in the same way that a computer communicates.
WHY CHOOSE WEB SERVICE INFRASTRUCTURE
Web services allow systems to communicate with each other using standard Intemet technologies. Systems that have to communicate with other systems use communication protocols and the data formats that both systems understand. Developers use technologies such as CORBA, RMI, or DCOM most often. The principal problem with these communication technologies is that not every platform supports them. Developers must create gateways to convert an unsupported protocol and data format into one that the target platform understands. The emergence of the Intemet has forced vendors to support standards such as HTTP and XML. Over the past few years, vendors and their customers quickly realized that programs that communicate with each other could also use the technologies that run the Internet. Web services use Internet technology for system interoperability. The advantage that Web services have over previous interoperability attempts, such as CORBA, is that they build on the existing infrastructure of the Intemet and are supported by virtually every technology vendor in existence. As a result of the ubiquitousness of the technologies they use, Web services are platform-independent. This means that whether the Web service is built using .NET or J2EE, the client uses the service in the exact same way.
Why Choose Web Services
A web service enables communication among different applications using open standards such as HTML, XML, WSDL (Web service development language) and SOAP.
- XML is used to add tags to data.
- XML messages are responsible for decoding messages in XML format to be understandable at the application level interacting with users. Currently, the protocols that perform this task are XML-RPC, SOAP, and REST.
- SOAP is to convey messages.
- Web service uses WSDL (Web service development language) to pass parameters to the data types for the operations and functions that Web service provides.
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