2003 Volume 23 Issue 6 Pages 461-472
System replacement in order to improve the performance per cost in hospital works is inevitable for a hospital using hospital information system (HIS). Such replacement of HIS tends to become large scale in these days. It is extremely important task for a hospital to make a replacement plan and accomplish the replacement without giving any inconvenience to the daily hospital works. However, it is generally required to deal with various problems in a replacement process within extremely limited time. In this paper, we have investigated the case at Kochi Medical School hospital as an example, and considered problems common in general replacement process and proposed methods to solve them. We have found 1) committee to make top down decisions, 2) early decision of clear basic policy for the new system, 3) start of works which is possible prior to the bit, 4) adaptation of mature and reliable technology and widely used soft wares, 5) system balance, 6) grasp of the data structure in old system, 7) reduction of the data transfer time from old system to new system by dividing the data transfer process, 8) large scale rehearsal in realistic condition, 9) preparation of help desks and help persons on the cut over day, 10) special division and staffs to concentrate various tasks from the planning to the end of replacement, are important.
