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A publication without content (an object without content) is created by removing the content (files) of a standard publication. It is a one-way operation, which means that once it has been carried out, the content cannot be added back to the publication. A publication without content cannot be searched or found on any list on the library Internet sites; it is only available at its permanent linkpermalink; every publication has such a link. A publication without content retains all properties of a publication (such as: metadata, number of releases, assignment to a collection, etc.), so that users who have the permanent link permalink to it are not confused by the missing, removed content. Those users will be informed that the content of the publication has been removed, and all information related to the publication will be displayed (off course, it will not be possible to browse the content of the publication after it has been removed). Publications without content are visible in the Editor and Administrator Application so that it is clear which publications have been deprived of their content and what their properties are.
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Removed publications (removed objects) are publications deleted from the system. They are not visible in the Editor and Administrator Application, and they cannot be found in the Reader Application (through a search or on the publication list). The remaining information about the publication are stored in the system in case of a reader having the permanent link permalink to it. After visiting the address, the reader will see the remaining information about the publication and the information about the date of the complete deletion of the publication.
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