4.14. W3C WSDL activity

4.14.1. WSDL ¶

WSDL (Web Services Description Language) is a XML format used to describe Web Services.

To learn more about WSDL, please read our WSDL tutorial.

WSDL 1.1 ¶

As an XML format that can describe Web Services, WSDL 1.1 was recommended tothe W3C (by Ariba, IBM, and Microsoft) in a record in March 2001.

This record also describes how to use WSDL in combination with SOAP 1.1, HTTP GET/POST, and MIME.

W3C WSDL 1.1 is only a NOTE for discussion. The release of this record does not represent any degree of W3C approval.

WSDL 1.2 ¶

The first working draft was issued on December 17, 2001.

The latest working draft was released on June 11, 2003.

WSDL 2.0 ¶

The W3C XML Protocol working Group is currently working on WSDL 2.0.

4.14.2. WEB structure ¶

The core of the Web structure is a Web server, which is generally undertakenby an independent server. The database server is the database server of theinformation management system. Each client data request is submitted by theWeb server to the database server, and then the Web server returns the client that sends the request.

The Web server here can be set as a gateway, one terminal is connected to the intranet of the information management system, and the other end is connected to the enterprise Intranet, which not only avoids the intranet being directly exposed to the outside, but also enables the internal to access the Web site.

4.14.3. W3C WSDL specification and timeline ¶

Standard	Draft / proposal	Recommended time
WSDL 1.1 Note	Mar 2001

WSDL Usage Scenarios	Jun 2002
WSDL Requirements	Oct 2002
WSDL Architecture	Feb 2004
WSDL Glossary	Feb 2004
WSDL Usage Scenarios	Feb 2004

WSDL 1.2 Core Language	Jun 2003
WSDL 1.2 Message Patterns	Jun 2003
WSDL 1.2 Bindings	Jun 2003

WSDL 2.0 Primer		Jun 2007
WSDL 2.0 Core Language		Jun 2007
WSDL 2.0 Adjuncts		Jun 2007
WSDL 2.0 SOAP 1.1 Binding		Jun 2007
WSDL 2.0 RDF Mapping		Jun 2007

Web Services Addressing Core		May 2006
Web Services Addressing SOAP Binding		May 2006

Web Architecture		Dec 2004

Standard

Draft / proposal

Recommended time

WSDL 1.1 Note

Mar 2001

WSDL Usage Scenarios

Jun 2002

WSDL Requirements

Oct 2002

WSDL Architecture

Feb 2004

WSDL Glossary

Feb 2004

WSDL Usage Scenarios

Feb 2004

WSDL 1.2 Core Language

Jun 2003

WSDL 1.2 Message Patterns

Jun 2003

WSDL 1.2 Bindings

Jun 2003

WSDL 2.0 Primer

Jun 2007

WSDL 2.0 Core Language

Jun 2007

WSDL 2.0 Adjuncts

Jun 2007

WSDL 2.0 SOAP 1.1 Binding

Jun 2007

WSDL 2.0 RDF Mapping

Jun 2007

Web Services Addressing Core

May 2006

Web Services Addressing SOAP Binding

May 2006

Web Architecture

Dec 2004

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.