ABSTRACT
The digital revolution is characterized by using the electronic computer and related devices to collect, store, analyze, and report information about the world and human activities. Using computers to keep track of spatial data is only a small part of the digital revolution—but it is an important part. The profound impact of their combined legacy has permeated mapping and the use of spatial data for over 400 years. Without making light of their work, the digital revolution justifies this new look at fundamental assumptions associated with the collection, manipulation, and use of three dimension (3-D) digital spatial data. As a consequence, the Global Spatial Data Model (GSDM) is seen as ideally suited for handling 3-D digital spatial data in various disciplines. With implementation of the GSDM, spatial data disciplines all over the world will enjoy the luxury of working more efficiently when exchanging and using 3-D digital spatial data.
