This composition table provides a basis for reasoning about indeterminacy in spatial data and makes a preliminary theoretic attempt for the emergence of spatial databases and GISs capable of coping with indeterminacy.

• 关系复合表的建立为空间数据不确定性处理建立了推理基础；并为建立能处理不确定性的空间数据库和地理信息系统做了理论准备.