Generating spatiotemporal datasets on the WWW

Efficient storage, indexing and retrieval of time-evolving spatial data are some of the tasks that a Spatiotemporal Database Management System (STDBMS ) must support. Aiming at designers of indexing methods and access structur es, in this article we review the GSTD algorithm for generating spatiotempo ral datasets according to several user-defined parameters, and introduce a WWW-based environment for generating and visualizing such datasets. The GST D interface is available at two main sites: http://www.cti.gr/RD3/GSTD/ and http://www.cs. ualberta.ca/similar to mn/GSTD/.