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Moreover, in the dLibra system, there is a set of roles which can be assigned to attributes. Those roles have semantic meaning, that is, they tell the system that the given attribute plays a specific role in the system. For example, when there is the “Title” attribute in the system, the system does not know that it is a basic designation of an element which should constitute the default name of the element. It is only after the “Title” role has been assigned to the “Title” attribute that the system knows that the “Title” attribute has the “Title” role.

The

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Meaning of

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Descriptive Metadata of

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Objects

The

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Descriptive Metadata of an Edition

The descriptive metadata created for a release edition describe the content of that releaseedition. The metadata are displayed to users of the web pages of the library when they browse the properties of a publication release edition and the content of that releaseedition.

Planned Publication Descriptive Metadata

Planned publication descriptive metadata are the descriptive metadata of the first releaseedition, which will be created when content is added to a given planned publication. Thus, when a planned publication is transformed into a standard publication (that is, when content is added to it), the dLibra system automatically transfers the descriptive metadata of the planned publication to the first release edition of the standard publication which is being created. Thanks to that, the users of the library web pages who browse planned publications can see the complete description of the digital object (standard publication) which will, in the future, replace the planned publication.

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