Overview
ISO 6438:1983 establishes a standardized set of 60 African graphic characters and their coded representations specifically designed for bibliographic information interchange. Developed by the International Organization for Standardization (ISO), this standard provides a reliable framework for encoding African language characters that are not covered by traditional Latin alphabets. The standard includes a comprehensive code table, a legend with character names and uses, and explanatory notes to support accurate implementation in information systems. ISO 6438 is crucial for libraries, archives, and information services handling African language bibliographic data.
Key Topics
- African Character Set: Defines 60 unique African characters, supplementing the ISO 646 Latin alphabet for comprehensive African language support.
- Code Table and Legend: Provides a structured mapping between graphic characters and their coded values, with details on the use and designation of each character.
- Special Characters: Addresses the specific needs of African languages, including accents, diacritical marks, and unique phonetic letters not found in other Latin-based scripts.
- Implementation Guidance: Offers notes on practical considerations for adoption, including character case conversion, font styles, and diacritic handling through references to ISO 5426.
- Error Checking and Data Exchange: Notes the importance of error detection (ISO 1155) and conformant data transmission procedures for bibliographic information systems.
Applications
- Bibliographic Information Interchange: Essential for libraries, cataloging agencies, and archives exchanging data on African language materials, ensuring correct character representation across platforms.
- Digital Libraries and Repositories: Facilitates the storage and retrieval of African language content with accurate metadata encoding, crucial for academic and research institutions.
- Language Resource Management: Supports linguistic research and documentation by providing a standardized reference for encoding African phonetic and orthographic variations.
- Data Processing Systems: Enables software developers and systems integrators to implement robust support for African language data interchange, enhancing interoperability in multicultural and multilingual environments.
Related Standards
For comprehensive implementation and compatibility, the following ISO standards are referenced or closely related to ISO 6438:
- ISO 646: 7-bit coded character set for information interchange – foundational for international data exchange.
- ISO 5426: Extension of the Latin alphabet coded character set – covers additional diacritical marks and special characters used in bibliographic applications.
- ISO 2022: Information processing – specifies code extension techniques for 7-bit and 8-bit coded character sets.
- ISO 2375: Procedures for registration of escape sequences, necessary for character set identification and switching.
- ISO 1155, ISO 1177, ISO 1745: Standards addressing data communication controls, error checking, and information message integrity during transmission.
- ISO 962, ISO 1113, ISO 6586: Guidelines on the representation and handling of coded character sets on various storage and transmission media.
By adhering to ISO 6438 and its related standards, organizations can ensure precise, consistent, and interoperable management of African language bibliographic information in both digital and physical data exchange environments. This is fundamental for supporting Africa’s linguistic diversity in a global information society.
Open preview (PDF)Documentation — African coded character set for bibliographic information interchange