A repository is a storage location for academic documents. In online repositories, publications are digitally stored, managed, and assigned persistent identifiersA Persistent Identifier (PID) is a permanent digital code directly associated with a digital resource, such as a dataset, scholarly article, or other publication, making it permanently identifiable and findable. Unlike other serial identifiers (e.g., URLs), a Persistent Identifier refers to the object itself rather than its location on the internet. If the location of a digital object associated with a Persistent Identifier changes, the identifier remains the same; only the URL location in the identifier database needs to be updated or supplemented. This ensures that a dataset remains permanently findable, accessible, and citable (Forschungsdaten.info, 2023). Read More. Cataloging facilitates the search and use of publications and author information. In most cases, documents in online repositories are openly and freely accessible (Open AccessOpen Access refers to the free, costless, unrestricted, and barrier-free access to scientific knowledge and materials. For third parties to reuse these materials legally, the creators must grant usage rights through a licensing agreement. Free CC licenses, for example, specify exactly how data and materials may be reused. Read More).