What is Web service Discovery Language in web Services
Technology & Science / February 28, 2018

Web Services Description Language (WSDL) is a format for describing a Web Services interface. WSDL describes a web service at both an abstract and a concrete level. At the abstract level, the web service is described by the messages it sends and receives. Typically an XML Schema is used for this. At the concrete level, the web service’s transport and wire format for one or more interfaces are described. Overview of Web Services Description Language WSDL is an XML-based format for describing Web services. Clients wishing to access a Web service can read and interpret its WSDL file to learn about the location of the service and its available operations. In this way, the WSDL definition acts as the initial Web service interface, providing clients with all the information they need to interact with the service in a standards-based way. Through the WSDL, a Web services client learns where a service can be accessed, what operations the service performs, the communication protocols the service supports, and the correct format for sending messages to the service. A WSDL file is an XML document that describes a Web service using six main elements: The WSDL document that describes a Web service acts as…

What is Simple Object Access Protocol in Web Services
Technology & Science / February 27, 2018

Simple Object Access Protocol (SOAP) is the messaging protocol for web services. It is used to encode the information in the request and response messages. A SOAP message is operating system independent and it is a way for one program to communicate with other programs independently to the operating systems of the other programs. The SOAP messaging framework consists of four parts, the SOAP processing model, the SOAP extensibility model, the SOAP protocol binding framework, and the SOAP message construct. The processing model defines “the rules for processing a SOAP message”. Overview of Simple Object Access Protocol SOAP supports different styles of information exchanged. It supports a Remote Procedure Call (RPC) style, which allows a request- response processing. And it also supports message oriented information exchange. This is good if you like to exchange business documents or other types of documents where the sender may not expect to get a response immediately. SOAP also have the following features: Protocol independence Language independence Platform and operating system independence Simple and extensible SOAP is an XML-based protocol from the W3C for exchanging data over HTTP. It provides a simple, standards-based method for sending XML messages between applications. Web services use SOAP to send…

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