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数据获取是ＧＩＳ公司或机构的一项主要开支，大约要消耗整个ＧＩＳ预算的７５％。在当今经济复苏的环境下，多数商业和政府机构正寻求一种既能削减此项费用又不损失数据精度或现势性的方法。
Data acquisition is a major expense for GIS companies or agencies and consumes about 75% of the entire GIS budget. In today’s economic recovery environment, most businesses and government agencies are seeking ways to cut costs without losing data accuracy or real-time.