Web Services Platform Elements,Why Web Services?

Web Services have three basic platform elements: SOAP, WSDL and UDDI.

SOAP?

SOAP is an XML-based protocol to let applications exchange information over HTTP. Or more simple: SOAP is a protocol for accessing a Web Service.

• SOAP stands for Simple Object Access Protocol
• SOAP is a communication protocol
• SOAP is a format for sending messages
 • SOAP is designed to communicate via Internet
 • SOAP is platform independent
 • SOAP is language independent
• SOAP is based on XML
• SOAP is simple and extensible
• SOAP allows you to get around firewalls
 • SOAP is a W3C standard

WSDL?

WSDL is an XML-based language for locating and describing Web services.
• WSDL stands for Web Services Description Language
• WSDL is based on XML
• WSDL is used to describe Web services
• WSDL is used to locate Web services
• WSDL is a W3C standard

UDDI?

 UDDI is a directory service where companies can register and search for Web services.

• UDDI stands for Universal Description, Discovery and Integration
 • UDDI is a directory for storing information about web services
• UDDI is a directory of web service interfaces described by WSDL
 • UDDI communicates via SOAP
 • UDDI is built into the Microsoft .NET platform