Computing Classification System toc. Document Actions ACM's first classification system for the computing field was published in 1964.
Then, in 1982, the ACM published an entirely new system. Subject Categories. Subject Categories DTIC® has identified 25 broad subject fields and 251 groups to categorize the areas of scientific and technical interest.
These fields and groups provide the structure for the subject grouping of technical reports in DTIC's collection and are used to define the areas of need-to-know in distributing these reports. Through this site, you will find the subject coverage for each subject category, as well as cross-references to related fields and groups. MSC2010 database. The main purpose of the classification of items in the mathematical literature using the Mathematics Subject Classification scheme is to help users find the items of present or potential interest to them as readily as possible---in products derived from the Mathematical Reviews Database (MRDB), in Zentralblatt MATH, or anywhere else where this classification scheme is used.
An item in the mathematical literature should be classified so as to attract the attention of all those possibly interested in it. The item may be something which falls squarely within one clear area of the MSC, or it may involve several areas. Physics and Astronomy Classification Scheme® (PACS®)