WSDL is a specification defining how to describe web services in a common XML grammar. WSDL describes four critical pieces of data:

Web Services using UddI & WSDL

Web Services Definition Language (WSDL)

This document is a proposal for recasting the Distributed Annotation Service (DAS) protocol 1.5 as a Web Service. The proposed Web Service API will be known as DAS 2.0.

In order for a person or company to run a Web service, basic information about that Web service needs to be provided - information such as where the service is located, how the service can be bound to, and similar information. All this information is provided by a Web Services Description Language (WSDL) document. In this column, we'll take a look at what WSDL is, how it works, and what the future may hold for WSDL.

A powerpoint presentation with a lots of WSDL examples.

In our previous articles we learned that SOAP is a very high-level protocol that mandates the structure of XML documents exchanged over some transport protocol. That's quite a vague definition. The vagueness of this definition makes SOAP extremely extensible and versatile, but it also makes interoperability a bit challenging. At a basic level, we start our quest to achieve interoperability at the transport protocol level.

XMLBus supports JavaBean type classes which are also known as structures. These data members can be the basic Java tyes (primitive and common class types), arrays of basic types, or arrays of structures. This means that a developer can create a complex Java object to serialize over the wire.

Using Visual Studio .NET, I created this C# Web Service.

In order to use the WSDL system, you will need to install the DataDoc modules. This module follows the same approach as any CPAN module. Execute the following commands after extracting the contents of the DataDoc tar file.

In our example, we will create a WSDL file from scratch.

This powerpoint presentation covers the architecture of Open Grid Services.

The current BTP message set prohibits the authoring of a useful WSDL for the control and output protocols. In particular, the wrapper elements (btp:messages and btp:related-group) do not allow a WSDL operation to be correlated to a BTP message (other than the wrapper element.)

Glue supports an XML descriptor format for specifying the properties of a web service.

Learn what a WebService is in this tutorial.

Let's start with understanding what web services mean. You must have heard this word zillion time now in the course of last two-three years.

This use case illustrates how to use XrML in a service-centric business model, which focuses on specifying rights, conditions, and metadata for services, such as web services. In this use case, Alice pays $2.00 each time she uses a web service to receive stock quotes. The following figure illustrates this use case:

When generating a Java test server, there is a restriction on the characters that can be used as separators in WSDL portType and binding names.

This document explains how to use the P3P generic attribute with a WSDL 2.0 description in order to express a Web service's privacy policy.

This chapter will guide you through the creation of a simple "Hello World" Web service and client. This simple Web service echoes some text back to the client.