The aim of our work is that we do thorough research on spatio-temporal data, spatial reasoning, gml, svg, and combined them with webgis technology, design and develop the spatio-temporal data management middleware, which can be integrated into the platform . usually, people develop webgis based on various existing webgis developing products . but the prices of these products are too expensive 我們所做的工作的目標就是對時空數(shù)據(jù)、空間推理、gml、svg等技術(shù)進行深入的研究,并將其與webgis技術(shù)結(jié)合起來,設(shè)計并開發(fā)實現(xiàn)時空數(shù)據(jù)管理中間件,并將我們的研究成果做為一個組成部分集成于整個平臺當(dāng)中。