The ACM Computing Classification System (1991)

H.3 INFORMATION STORAGE AND RETRIEVAL

• H.3.0 General
• H.3.1 Content Analysis and Indexing
• H.3.2 Information Storage
• H.3.3 Information Search and Retrieval
• H.3.4 Systems and Software
• H.3.5 Online Information Services
• H.3.6 Library Automation
• H.3.m Miscellaneous