Complex Objects in Knowledge-Based Requirements Engineering. - Saimond Ip; Louis Chi-Yan Cheung; Tony Holden (KBSE, 1991)

A Knowledge Based Technique for the Process Modelling of Information Systems: The Object Life Cycle Diagram. - Saimond Ip; Tony Holden (CAiSE, 1992)

A knowledge representation approach to information systems analysis and modelling. - Saimond Ip (1992)