Chinese Character Code for Information Interchange
The Chinese Character Code for Information Interchange (Chinese: 中文資訊交換碼) or CCCII is a character set developed by the Chinese Character Analysis Group in Taiwan. It was first published in 1980, and significantly expanded in 1982 and 1987.
The character 圓 (circle, Japanese yen, Chinese yuan) in four layers of CCCII. | |
| Language(s) | Chinese, Japanese, Korean |
|---|---|
| Standard | MARC-8, ANSI/NISO Z39.64 (both EACC version) |
| Current status | Used mainly by library systems |
| Classification | TBCS for CJK based on the ISO 2022 structure, JACKPHY component of MARC |
It is used mostly by library systems. It is one of the earliest established and most sophisticated encodings for traditional Chinese (predating the establishment of Big5 in 1984 and CNS 11643 in 1986). It is distinguished by its unique system for encoding simplified versions and other variants of its main set of hanzi characters.
A variant of an earlier version of CCCII is used by the Library of Congress as part of MARC-8, under the name East Asian Character Code (EACC, ANSI/NISO Z39.64), where it comprises part of MARC 21's JACKPHY support. However, EACC contains fewer characters than the most recent versions of CCCII. Work at Apple based on Research Libraries Group's CJK Thesaurus, which was used to maintain EACC, was one of the direct predecessors of Unicode's Unihan set.