Advertisement

XML Approach to Communication Design of WebGIS

  • Yingwei Luo
  • Xinpeng Liu
  • Xiaolin Wang
  • Zhuoqun Xu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3579)

Abstract

XML can describe the concept model of inclusion relationship conveniently. Also, it can directly express the concept model in an understandable way, and the expression format is so flexible that no useless element will be included there. While describing communication protocols by XML, we can not only give a common format for data and control commands, but also reuse the existing XML parsers, so as to facilitate the expansibility and integration of protocols in a system. W3C had proposed Simple Object Access Protocol (SOAP) [1], which is a light weight protocol based on XML used to build information exchange framework under distributed environments. ArcInfo’s ArcIMS also used ArcXML as the fundamental command and data transmission protocols to communicate between users’ web pages and backend spatial data servers [2]. Our idea of XML based communication protocols for WebGIS benefits from the SOAP model, but we basically focus on the application in WebGIS. With the aid of UML, the typical requiring and responding protocols of WebGIS are analyzed firstly. Then the mechanism of designing communication protocols following W3C’s XML Schema specification is illustrated.

Keywords

Communication Protocol Server Side Object Tree Simple Object Access Protocol Exchange Framework 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    W3C XML Protocol Working Group, http://www.w3.org/2000/xp/group/
  2. 2.
    ArcXML Programmer’s Reference Guide (ArcIMS 3), PDF on CD only (2001) Google Scholar
  3. 3.
    W3C Extensible Markup Language (XML), http://www.w3.org/xml/

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Yingwei Luo
    • 1
  • Xinpeng Liu
    • 1
  • Xiaolin Wang
    • 1
  • Zhuoqun Xu
    • 1
  1. 1.Dept. of Computer Science and TechnologyPeking UniversityBeijingP.R.China

Personalised recommendations