Skip to page content

亚洲太平洋地区 (Chinese Simplified) 更改
Dewey Services : Latest versions

Change is a constant

The Dewey Decimal Classification (DDC) system was conceived to accommodate the expansion and evolution of the body of human knowledge. That's why 22 unabridged print editions and 14 abridged editions over nearly 130 years, as well as about 10 Web editions since 2000 have been published—to ensure that you have current tools to manage contemporary knowledge organization projects.

The four-volume unabridged edition is published approximately every seven years, reflecting the time the Dewey editorial team needs to implement changes across the entire classification. The 22nd print edition, published in mid-2003, includes many new features that make the classification easier to use. The abridged edition, Abridged Edition 14, was published in February 2004, and is well-suited for the classification needs of libraries with up to 20,000 titles in their collections.

WebDewey and Abridged WebDewey, which correspond to the unabridged and abridged print editions, are updated on a quarterly basis, bringing you ongoing updates implemented by the Dewey editorial team almost as soon as they occur. The Web versions also offer additional electronic functionality not available in the print editions to make your classification work more efficient.

所有的杜威十进分类体系的版权均为 OCLC 所有。
Dewey，Dewey Decimal Classification，DDC，OCLC 以及 WebDewey 都是 OCLC 的注册商标。