Multipurpose Land Assessment Information System based on Plug-in Technique
Xu Tang · Zhongguo tudi kexue · 2010
The purpose of this paper is to develop a multipurpose land assessment information system in order to realize the integration of various assessment operations and assessment methods.The first method used is to establish the logical relation model of node-operation process for multipurpose land assessment based on the analysis and induction of current technical assessment process.The second method used is to design the operation assessment plug-ins with layer structures such as data interface,and to design the host program framework for plug-in calling,specialized algorithm and application performance.The results indicate that(1)plug-in database for operation node of land assessment has been developed;(2) system function integration under requirements of multipurpose land assessment has been realized.It is concluded that(1)problems in system integration of multipurpose land assessment have been solved by the operation node plug-ins and host model designed according to plug-in theory;(2) development efficiencies of relevant operation systems have been promoted by the plug-in database designed for assessment operation.