Web Services Description Language (WSDL)
It stands for Web Services Description Language, XML-based standard to describe the service as the COM, where he brings the methods of the Web Service. It functions as a kind of “TypeLibrary” Web service, and is used for the validation of calls of methods.
The WSDL (Web Services Description Language) is a specification developed by the W3C for describing Web Services in a XML format.
The WSDL is extensible to allow description of the services and their messages, regardless of message formats and network protocols that are used. However, it is common to use the MIME (Multipurpose Internet Mail Extensions) and HTTP: / / SOAP.
The WSDL describes the services available to the network through a semantic XML, this provides the necessary documentation to be called a distributed system and the procedure required for this communication is established. While SOAP specifies the communication between a client and a server, the WSDL describes the services offered.
Universal Description Discovery and Integration (UDDI)
The UDDI is an initiative developed within the industrial consortium UDDI originally promoted by IBM, Microsoft and Arriba, aiming to accelerate the interoperability and use of Web services, the proposal for a Service Name Registration organizations and service description. This Protocol was developed for the organization and registration of Web Services.
A UDDI registry contains three types of information:
• General information of each organization, such as name, address, phone and contacts;
• Information organizations and services by category of business;
• Technical information about the services provided by organizations.
UDDI provides three main functions, known as publication, discovery and connection:
1) Posted: allows an organization to disclose the (s) your (s) service (s),
2) Discovery: Allows the customer service, search and find a particular service,
3) Connection (bind): allows customer service, can connect and interact with the service.
WS-I
It is the consortium that ensures the integration of Web Services to always ensure that Web services can “talk to itself”.
Ongoing Development In Web Services
The success of Web services may be submitted necessarily entails the willingness of the industry by sharing and openness of the standardization process and the resulting own specifications. A significant part of this process has been developed under the W3C.
However, it should be also noted other efforts and consortia that have been developed, including UDDI, ebXML, or XML / EDI. For example, ebXML is an effort sponsored by UN / CEFACT and OASIS, whose aim is to produce a set of specifications to enable e-business collaborations.
The ebXML standard can be seen as an extension to feature description, publication and service discovery (defined in the UDDI), to discuss the following issues: how to specify business processes, how to identify the Web Services participants and their collaborations; or trading patterns that exist in the collaboration between the participants. These aspects are treated including the following specifications:
1) Schema for specifying business processes, BPSS (business process specification schema),
2) Agreements of cooperation protocols, CPA (Collaboration Protocol agreement),
3) Or profiles of working arrangements, CPP (collaboration protocol profile).
Study: From Wikipedia, the free encyclopedia. The text is available under the Creative Commons.
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Tags: uddi, universal description discovery and integration, web service solutions, web services description language, wsdl