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。
This tutorial has shown you how to use SOAP to exchange information between applications through HTTP.
You have learned about the different elements and attributes in SOAP messages.
You also learned how to use SOAP as a protocol to access web service. The next step is to learn WSDL and Web Services. WSDL is a XML-based language that describes Web services and how to access them. WSDL can describe a web service, along with the message format and protocol details used for this web service. If you need to learn more about WSDL, please visit our WSDL tutorial. Web services converts an application to a network application (web-applications). By using XML, messages can be delivered between applications. If you need to learn more about web services, please visit our Web Services tutorial. 3.10.1. You have learned SOAP, what’s the next step? ¶
WSDL ¶
Web Services ¶