Content connected is a lightweight module which allow administer to know whether content is connected with some other content before it is about to be deleted from the system. So administer should know whether content should be deleted or not.
Content connected is also added as sub tab in node pages to view content connection with other contents. This can be restricted by permissions for different roles.
Content connection based on entity reference field and any textarea/long field for any content type.
Connected content is listed in a table where it can be identified how it is connected(Reference field or textarea/long field).