Web Services Platform Elements

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# Web Services Platform Elements

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

## What is SOAP?

SOAP is a simple 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

Read more about SOAP on our Home page.

## What is WSDL?

WSDL is an XML-based language for describing Web services and how to access them.

- WSDL stands for Web Services Description Language
- WSDL is based on XML
- WSDL is used to describe Web services
- WSDL is also used to locate Web services
- WSDL is a W3C standard

Read more about WSDL on our Home page.

## What is UDDI?

UDDI is a directory service where businesses 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

Read more about UDDI on our Home page.

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