There appeared tens kinds of STDM in the recent decade. These models have different spatio-temporal cognition background, different model approaches, different spatial data structure basis, different function emphasis and application aim.

• 十余年来前人提出了几十种时空数据模型,这些模型的时空认知背景、建模思路、空间数据结构基础、功能侧重点、应用目标与优缺点各不相同。