Computerized assistance during the information systems life cycle : proceedings of the IFIP WG 8.1 Working Conference on Computerized Assistance during the Information Systems Life Cycle, CRIS 88, Egham, England, 19-22 September, 1988 - Olle, T. William; Verrijn Stuart, A. A.; Bhabuta, L. (North-Holland ; Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co., 1988)