“…Migration is a recurring event and äs many libraries find their present system unsatisfactory, they are facing system migration for the first, second or even third time. Pourciau (1992), in bis survey of 154 libraries, found that 87 had migrated. Obsolete hardware, lack of functionality, unresolved system problems, long response times, lack of confidence in current vendor, abandonment of system by vendor and user complaints were found to be the most prominent reasons for migrating.…”