The SHOW USES command displays the owners of the element you
    specify. The display includes the properties of owners and the
    values associated with these properties.

    The SHOW USES command lists owners if they have either directory
    names or processing names. CDO looks first for the directory
    name and displays it if one exists. If a directory name does not
    exist, CDO then looks for and displays the processing name.

    An element can only exist in the repository without a directory
    or processing name if it has a relationship to an owner with a
    directory name. CDO displays a name unspecified message in this
    case.

    You can use the SHOW USES command to display the names of
    elements that receive new version messages if you create a new
    version of the element you specify.