CDB is an OGC Standard. Copyright (c) 2016 Open Geospatial Consortium. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/. The concept of a 'CDB Configuration' is new to version 3.2 of the Specification. A single XML file, named Configuration.xml, completely defines the configuration of one 'logical' CDB. This way, the client application does not have to traverse the linked list of CDB Versions through the 'PreviousIncrementalRootDirectory' element found in Version.xml The CDB Configuration is a simple list of one or more CDB Versions. A CDB Version points to the folder where the data resides. An optional comment can be used to describe the version. It is possible to indicate to which version of the CDB Specification the CDB Version complies. Finally, the CDB Version can indicate if it contains extensions to the Specification. Provides a non-empty path to a folder. A relative path is prefered although an absolute path is supported. Specifies the version of the CDB Specification used to generate the current CDB Version. If 'Specification' is omitted, the version number is deemed to be 3.0. Indicates that the CDB Version contains extensions to the CDB Specification. The CDB Extension is identified by a name and a version number. Both are character strings of at least one character.