In many organizations, both business and scientific, we collect ever increasing amounts
of data using information technology. Indeed, the technology for collecting data has
outpaced our ability to analyze and interpret these very large databases. In this paper,
we discuss the interaction of heuristic search and domain knowledge in the AX
knowledge discovery tool. The search process rests on the use of rule quality measures
and the organization of domain knowledge. A small loan application database from
the machine learning repository is used to illustrate the process.Information Systems Working Papers Serie