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offer more than a very general orientation (e.g. 600 Technology; see long item display forhttp://hdl.handle.net/2128/3220 – 25.10.2009). In addition, some (but not the majority of)records contains abstracts to support the discovery and selection of resources. This lackof subject indexing, which also means that JUWEL does not comply with the respectiveDINI criteria at the moment, is problematic for a number of reasons: on the one hand itmakes the discovery and selection of documents increasingly difficult, as users eitherhave to trust that they find what they need by means of a simple keyword search or bybrowsing the collection of the institute which they believe to have published something onthe topic they are interested in. As pointed out by Dr. Wagner, while this might be tolerableas long as one stays within the boundaries of JUWEL, it becomes an immense drawbackas soon as users access the collection not via the local search functionality but search foropen access publications via meta-search engines such as BASE. 123 It is particularly inthese search engines that a subject-based search makes much more sense than a fulltextsearch, which will often return too many hits to be useful. Thus, as soon as userscarry out such subject searches in BASE or similar engines, no hits from JUWEL will bereturned. In addition, from the perspective of long-term preservation, the lack of metadatadescribing the content of a resource by means of a controlled vocabulary is aconsiderable deficit in that such metadata will help to ensure that the designatedcommunity will be able to understand the digital objects in the repository. Thus, inparticular as the amount of publications stored in the repository increases, the use ofclassification and controlled vocabulary for indexing will become indispensable.2.2.3 Qucosa IngestIngest: Receive SubmissionDigital publications are primarily submitted to Qucosa through the web interface(“Eingabeassistent”) 124 , which allows authors to upload their publications and related filesin six steps. In some cases files are also submitted via email and uploaded by therepository staff. In addition, submission of CD-ROMs and URLs is possible as well (seeQucosa FAQ 125 ).Both the Qucosa FAQ and the Qucosa Publication Guidelines 126 outline requirementson the submitted files meant to guarantee that the repository receives full control over thesubmitted files. Thus, according to the publication guidelines, submitted files must amongothers fulfill the following criteria: “Die Dateien sollen identifikationsfrei sein und keinenSicherheitsbeschränkungen unterliegen.” This aspect is explained in more detail in theFrequently Asked Questions, which state that files must be free from any DRM or othertechnical measures designed to limit access to the file or protect the file from being copied(password protection, encryption, etc.):123 http://www.base-search.net/ – 03.11.2009.124 http://www.qucosa.de/veroeffentlichen/eingabeassistent/ – 18.10.2009.125 http://www.qucosa.de/faq/ – 03.11.2009. Hereafter cited as Qucosa FAQ.126 http://www.qucosa.de/veroeffentlichen/ – 03.11.2009. Hereafter Cited as Qucosa Guidelines.46