What is .Net Web Service?

• • Web service is the way to publish application's function on web that can be accessible to the rest of the world.
  • Web services are the components that can be used by other applications
  • ASP.NET offers easy way to develop web services, just precede the functions with a special WebMethod ()> attribute in order them to work as Web Service.
  • Web services are discovered using UDDI directory services.
  • Web services are built on XML standard and use SOAP protocol that allows them to communicate across different platforms and programming languages.
  • Web services easily manage to work across corporate firewalls as they use HTTP protocol which is firewall friendly.
  • Web services platform elements are
    SOAP (Simple Object Access Protocol)
    UDDI (Universal Description, Discovery and Integration)
    WSDL (Web Services Description Language)
  • The web services are built on internet standards that are not platform or language specific.
  • The .Net framework provides in-built classes to build and consume web services.
  • The components offered by web services are reusable.
  • The examples of web service components can be shipment tracking, translation utility, weather forecasting, sports scores etc.