A leading vendor of information technology (IT) systems commissioned t
he authors to investigate how its clients made their decision to acqui
re new systems, what benefits they expected to gain, and the kind of e
valuation procedures used both before taking the decision to go ahead
and subsequently when the systems were in operation. The 16 organizati
ons participating in the study had all purchased major systems and wer
e willing to talk frankly about their experiences. The results of the
research have been extensively reported elsewhere. The purpose of this
paper is to draw out the implications for IT management. The paper op
ens with a summary of the findings of the original research. The main
part of the paper consists of six case studies from which the manageme
nt issues are drawn out.