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Dewey-free (also Dewey free, Dewey-less, or word-based) refers to library classification schemes developed as alternatives to Dewey Decimal Classification (DDC). Dewey-free systems are often based on the BISAC subject headings developed by the Book Industry Study Group, and are typically implemented in libraries with smaller collections. Instead of using numerical notation to indicate a document's shelving location, Dewey-free systems organize documents alphabetically by natural language words. Dewey-free systems have been implemented in both public and school libraries. ==Motivations== A primary motivation for the development of Dewey-free systems is to eliminate DDC's numerical notation, which many library patrons find intimidating. Abandoning numerical notation in favor of natural language words may also facilitate browsing. Adoption of Dewey-free classification is often seen as part of a greater trend of using a "bookstore model" to deliver library services. This trend gained traction in 1998 with an article by Los Angeles librarian Steve Coffman. While some librarians see this as a beneficial approach that will make patrons more comfortable and increase circulation statistics, others disagree with the approach, particularly as large bookstores such as Borders Group have met severe financial challenges. Many Dewey-free proponents believe that Dewey is outdated and ill-suited for non-academic environments.〔〔 DDC organizes documents not only by subject, but also by academic discipline. This leads to materials on the same topic being filed in wildly disparate locations. For example, Dewey places books about railroad trains in both the 380s and the 620s.〔 The discipline-based orientation is also problematic for categorizing interdisciplinary works and non-academic titles, which make up the bulk of most public libraries' non-fiction holdings. DDC has also faced a number of critiques for its biases. Scholars and catalogers have specifically criticized its marginalization of developing countries and continents, Christian-centrism,〔 racism, sexism, homophobia, and marginalization of intersex people. Some proponents of Dewey-free systems suggest that abandoning DDC in favor of new schemes may address these problems, but the literature doesn't include any analysis of BISAC Subject Headings for these issues, nor have any Dewey-free libraries documented strategies for addressing these issues within the taxonomies they have devised. Librarians who work with children point to additional benefits within their collections. They note that school library workers often have little support and few resources for teaching the DDC system to children. The numbers themselves are often opaque to younger students, who typically don't learn about decimals until late in elementary school. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dewey-free classification」の詳細全文を読む スポンサード リンク
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