The results of investigation into similarities and differences between problems of enterprise system (ES) implementation in transition and developed economies are presented. In doing so, the research builds on the opinions of ES practitioners from Poland, a transition economy from Central and Eastern Europe. The main findings suggest that problems in developed economies seemed to be clearly assigned to a specific ES implementation phase whereas in Polish companies difficulties seem to span

more »

... gh all the lifecycle phases. In addition, it is noticeable that in transition economies practitioners have to deal mostly with system-related issues, while in developed economies the shift from system-related to business-related problems throughout the system lifecycle is clearly visible.