Cadcorp Base Dataset (BDS)
A Cadcorp Base Dataset (BDS) is a native geometry format within SIS Desktop 9.1 used for storing and sharing your own graphic information.
It supports complex vector, topological geometry and raster images.
A BDS file can be placed anywhere on your computer or on a network and accessed by other users if required.
It provides a permanent and separate storage facility for the data you put in it.