N-GEN Communications Web-based Seminars ©NGCS

Seminar - An Overview of Communications Technologies

Module 6 - Internet, Intranet, Extranet, e-Commerce and Web Services                                      Slide 65 of 70 _________________                                                                                  __________

                                    Emerging Web Services Technologies

                                Extensible Markup Language (eXML)

                                Simple Object Access Protocol (SOAP)

                                Web Service Description Language (WSDL)

                                Universal Description, Discovery and Integration
                                  (UDDI)

_________________                                                                                  __________

Web Services are developed by using a programming language and can be deployed on any platform. Standard formats and protocols are used to communicate the Web Service contents. eXML is used to describe interfaces and to encode messages. SOAP, WSDL and UDDI are used to communicate, describe and locate Web Services.

Extensible Markup Language (eXML) - Extension of HTML.

Simple Object Access Protocol (SOAP) - Defines a standard communications protocol for Web Services. SOAP provides a simple and consistent mechanism that allows one application to send XML messages to another application.

Web Service Description Language (WDSL) - Defines a standard mechanism to describe a Web Service. A WSDL document describes what functionalities a Web Service offers, how it communicates, and where it is accessible.SOAP development tools use a WSDL description to automatically generate a SOAP interface.

Universal Description, Discovery and Integration (UDDI) - Provides a standard mechanism to register and discover Web Services. Users communicate with UDDI by using SOAP messages.