6.8. You have learned WSDL, what’s the next step?

6.8.1. WSDL Summary ¶

This tutorial has shown you how to create WSDL documents that describe web services. It also specifies the location of the service and the operations (or methods) provided by the service.

You have learned how to define message formats and protocol details for web services.

You also learned that you can register and search for web services through UDDI.

6.8.2. You have learned WSDL, what’s the next step? ¶

The next step is to learn SOAP and Web Services.

SOAP ¶

SOAP is a simple XML-based protocol that allows applications to exchange information through HTTP.

Or, more simply, SOAP is the protocol used to access web services.

If you want to learn more about SOAP, please visit our SOAP tutorial.

Web Services ¶

Web services converts your application to a web application.

By using XML, messages can be sent between applications.

If you want to learn more about Web services, please visit our Web services tutorial.

最近几年来，地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持，如城市管理、区划、环境整治等等，地理信息成为信息时代重要的组成部分之一； “数字地球”概念的提出，更进一步推动了作为其技术支撑的GIS的发展。与此同时，一些学者致力于相关的理论研究，如空间感知、空间数据误差、空间关系的形式化等等。这恰好说明了地理信息系统作为应用技术和学科的两个方面，并且这两个方面构成了相互促进的发展过程。