WSDL is an XML format for describing network services as a set of endpoints operating on messages containing either document-oriented or procedure-oriented information. The operations and messages are described abstractly, and then bound to a concrete network protocol and message format to define an endpoint. Related concrete endpoints are combined into abstract endpoints (services). WSDL is extensible to allow description of endpoints and their messages regardless of what message formats or network protocols are used to communicate, however, the only bindings described in this document describe how to use WSDL in conjunction with SOAP 1.1, HTTP GET/POST, and MIME. [Status: This draft represents the current thinking with regard to descriptions of services within Ariba, IBM and Microsoft. It consolidates concepts found in NASSL, SCL, and SDL (earlier proposals in this space).] As communications protocols and message formats are standardized in the web community, it becomes increasingly possible and important to be able to describe the communications in some structured way. WSDL addresses this need by defining an XML grammar for describing network services as collections of communication endpoints capable of exchanging messages. WSDL service definitions provide documentation for distributed systems and serve as a recipe for automating the details involved in applications communication. A WSDL document defines services as collections of network endpoints, or ports. In WSDL, the abstract definition of endpoints and messages is separated from their concrete network deployment or data format bindings. This allows the reuse of abstract definitions: messages, which are abstract descriptions of the data being exchanged, and port types which are abstract collections of operations. The concrete protocol and data format specifications for a particular port type constitutes a reusable binding. A port is defined by associating a network address with a reusable binding, and
Did you find this white paper useful?
7 out of 18 users found this white paper useful
Related white papers
Multi-Carrier Web-Based Booking for Air Cargo
Air cargo has struggled to enter the Internet-age. Web-based solutions for booking space and managing shipments have either failed due to unrealistic visions, or been slowed down by complex IT...
Live From Redmond: Building Rich Internet Application Using Microsoft Silverlight 2
This webcast builds a Video Search Web Site using Silverlight 2. It will demo - how to use Visual Studio to create a Sliverlight applications, how to create UI using...
XFDL: Creating Electronic Commerce Transaction Records Using XML
This paper discusses the issues surrounding the creation of legally-binding electronic transaction records on the Internet and outlines an XML-based solution called Extensible Forms Description Language (XFDL). This discussion begins...
XML-GL: A Graphical Language for Querying and Restructuring XML Documents
The widespreading of XML as a standard for semi-structured documents on the Web opens up challenging opportunities for Web query languages. In this paper we introduce XML-GL, a graphical query...
Secure XML, Bringing Trust and Interoperability to B2B
Developed over the last three years, XML is the ubiquitous B2B language that is providing the ideal communications environment for efficient and effective business processes. XML provides a powerful means...
Wiring Your Enterprise to the Web
SilverStream's xCommerce product family enables enterprises to connect directly with buyers and suppliers using extensible markup language (XML) as the information exchange language. xCommerce B2B integrations can incorporate an unprecedented...
Web Services Brokered Notification
Web Service (WS)-Notification is a family of related white papers and specifications that define a standard Web services approach to notification using a topic-based publish/subscribe pattern. It includes: standard message...
