A comprehensively and properly implemented quality system is the best means
for a company to ensure that its products and services will consistently m
eet customers requirements. The ISO 9000 series of quality standards is the
most widely accepted for such a quality system. ISO 9000 has been adopted
as a national standard by most industrial nations of the world The main pur
pose of this paper is to describe a Gauging Absence of Prerequisites (GAP)
analysis Expert System for ISO 9000 implementation by using an Expert Syste
m Shell called CRYSTAL 4. This Expert System consists of four sections. The
introduction section is meant for new users who desire to implement ISO 90
00 in their organization. The recommendation section advises the type of IS
O 9000 to register with, in addition to selecting a registrar and registrat
ion. The GAP analysis section, which is the core of this Expert System, ide
ntifies the GAP between the prerequisites and what actually, exists in the
present environment so that successful implementation can be achieved. The
system also provides the user solutions with a wide variety of common quali
ty problems through a trouble-shooting section. The Expert System has been
validated using two different scenarios.