"Throughout this document the term "digital master" is frequently used. This term does not refer to a particular file format, but rather to a digital object that "most closely retains the significant attributes of the original." (Digital Library Federation Benchmark for Faithful Digital Reproductions) Masters are created to be long-lived and high quality to enable the production of versions for various uses. For example, if one were creating masters of a book, they might include a full text version of the text encoded in a standard XML format, such as the Text Encoding Initiative Guidelines".

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Заранее благодарю!