Web Services

Valley imposes a fine on to stand out that in it practises the functioning of the Web Services does not occur in maiorias of the cases as specified for the W3C (World Web Consortium, International trust with about 300 members, and independent companies, governmental bodies that it aims at to develop standards for the creation and interpretation of content for web). In this article, we will have a general vision of the Web Services and protocol SOAP its structure and communication with Web Services will approach an use in the real world. WSDL is a protocol based on XML for exchange of information in distributed environment registered way UDDI, a standard to describe as to have access a service web and which operation to execute, is used in combination with SOAP and XML to give to services web through the Internet, a service web reads archive WSDL to determine the available functions. The customer can then use protocol SOAP to call the functions disponibilizadas in archive WSDL. A typical document WSDL 1 Picture 1 will have the following structure demonstrated in the Picture simplified Structure of an archive WDL. .

An instance of the WSDL is a document XML with an element root that specifies the namespace of archive WSDL (), the simplified exhibition of the structure of format WSDL shows some elements that are used to indicate inside to the main sections of document WSDL; the function of each one of described them and briefly in the following table. Table 1 simplified Description of an archive WSDL Element Description wsdl: types the element to continer of the definitions of the type of done data using XSD or another similar system for types of data. wsdl: message Definition of the data of communicated message.

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