目 录
引 言 ..................................................................................................I
一、范围..................................................................................................1
二、引用文件..........................................................................................1
三、术语和定义......................................................................................1
四、基本要求..........................................................................................1
（一）时空基准 ................................................................................1
（二）基本原则 ................................................................................2
五、总体流程..........................................................................................2
（一）流程图 ....................................................................................2
（二）流程说明 ................................................................................3
六、语义化内容......................................................................................4
（一）基础地理实体属性 ................................................................4
（二）基础地理实体关系 ................................................................4
七、语义化内容获取..............................................................................4
（一）实体属性的获取 ....................................................................4
（二）实体关系的获取 ....................................................................6
八、语义化内容表达............................................................................11
（一）定义概念层 ..........................................................................11
（二）建立语义描述规则并描述 ..................................................12
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