Abstract Arguments are presented as to why integrated, monolithic configuration management is not well suited to commercial realtime systems. An alternative approach to configuration management that over several years we have found to be effective and widely useable is described. Versions that exist simultaneously are represented by selectors from a common database.
Evolution is represented by layers, as in the the film animators cel.
This report also appears in Proceedings of the Second International Workshop on Software Configuration Management, Princeton, NJ, October 1989. Copyright 1989 by National Research Council of Canada Permission is granted to quote short excerpts and to reproduce figures and tables from this report, provided that the source of such material is fully acknowledged.