NCL can be accessed through either a command line interface
    or a Graphical User Interface (GUI). The GUI allows network
    managers to view the status of network components and control
    those components from a Motif-based window interface.

    This utility provides a hierarchical graphical approach to
    the management of DECnet-Plus.  The manageable components of
    DECnet-Plus (modules, entities and subentities) are
    represented in a tree-like structure below the icon that
    represents the node you are managing.  This provides an easy
    way to familiarize yourself with the organization of these
    manageable entities (the entity hierarchy).  Another way to
    view the entity hierarchy is to use this help facility --
    see HELP ENTITY_HIERACHY.

    For further information regarding the network management GUI,
    refer to the DECnet-Plus Network Management book.