# Nonqualified Names as New Space Names

You can use a NQ name to specify the name of a new coordinate system or the replacement name for an existing coordinate system. In this case, you must specify a name that is different from the NQ name of all other spaces that share the same parent. The name comparison is case-insensitive. If the name is not unique, the coordinate space tree by default returns an error and fails to create the new space.

All coordinate spaces that share the same parent must have unique NQ names, however this does not guarantee that NQ names will be unique throughout the entire coordinate space tree. A single NQ name may be attached to multiple spaces in the tree.