摘要
0.引言
目前,地理信息领域的软件研发主要是采用基于面向对象的方法,不可否认,面向对象方法的出现和发展曾经极大地推动了地理信息领域的快速发展.然而,随着网络化进程的进一步加快、分布式应用的不断增加和用户对系统要求的进一步提高,原有基于对象的方法已经不能很好地满足当前地理信息系统技术在分布式网络环境下的应用要求.
Although object-oriented methodology is the most popular methodology of software design in GIS fields currently, its core concept object has some limits in distributed environment. This paper proposes that some inherent properties and additional properties of Agent can be used to overcome these limits of object,and bring a new methodology to the design pattern and development pattern of distributed applications in GIS fields. The concepts and effects of several relative Agent technologies are presented as well, including Mobile Agent, Assemble-on-Demand Agent, and Wrapper Agent.
出处
《计算机科学》
CSCD
北大核心
2002年第9期113-115,98,共4页
Computer Science
