Journal of Systems and SoftwareVolume 4, Issue 1, April 1984, Page 1Editor's introductionAuthor links open overlay panelRichard E. FairleyShow moreShareCitehttps://doi.org/10.1016/0164-1212(84)90015-3Get rights and contentRecommended articlesReferences (0)Cited by (0)View full textCopyright © 1984 Published by Elsevier Inc.