This article explores the origins (in mid-1970s) and early history of the access control software products industry with IBM's RACF and startup SKK's ACF2. Both in part grew out of and were aided (at the start for ACF2, and on a continuing basis for RACF) IBM computer user group SHARE, Inc. It emphasizes the role of organizational mainframe computer users in shaping key attributes of these first products, and these users' efforts to balance reducing costs of running such systems and securing data.
- Access control
- Computer security