In particular, virtual reality will in 2010 make way for augmented reality: overlaying the real world with digital information, typically with the help of a smart-phone.

She used it to describe the “new” geography of overlaying or mashing up two or more sources of geographic information (e.g., webcams from Caltrans on top of a Google basemap).

In contrast with the traditional method to coarsen and disperse the spatial data to administration unit, the spatial overlaying analysis can greatly diminish the loss of spatial information.