Data modeling is a key basis to establish a GIS application system. Thus, the construction of data model of urban public transport will lay the foundation for GIS-T application in this field.
数据模型是GIS应用系统建设的核心和基础,城市公共交通行业数据模型的建立可以为GIS - T在该行业的应用奠定基础。
Part three discussed the design of data warehouse, which included the construction of data model, data extract and data management.
第三部分论述了系统数据仓库的设计,包括数据模型的建立,数据的抽取,以及数据管理。
Part three discussed the design of data warehouse, which included the construction of data model, data extract and data management.
第三部分论述了系统数据仓库的设计,包括数据模型的建立,数据的抽取,以及数据管理。
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