ACM Computing Classification Scheme

The ACM Computing Classification Sheme is a subject classification system for the computing field developed by the Association for Computing Machinery. The system uses a three-level tree, plus a fourth subject descriptor level. For example, H.5.5 Sound and Music Computing . There are currently eleven first-level nodes.

A. General literature

B. Hardware

C. Computer systems organization

D. Software

E. Data

F. Theory of Computation

G. Mathematics of computing

H. Information system

I. Computing methodologies

J. Computing applications

K. Computing milieux

The first version came out in 1964, and was followed by revisions in 1982, 1983, 1987, 1991, and 1998.

In the literature it is often referred to as CR Categories .

= External links =

[http://www.acm.org/class/1998/ ACM Computing Classification System (1998 Version)]