Recently, it has been of overriding importance that physicians practice following to Evidence-Based Medicine (EBM). When the electronic medical record will turn into reality, Hospital Information System (HIS) can vigorously push forward EBM. The key factors are as follows;
(1) to establish the digital library to get the reliable evidence from updated resorces at any time from any place.
(2) to set up various kinds of critical paths based on EBM inside HIS.
(3) to develop the monitoring and validating sytem for each critical path on line.
(4) to improve each path swiftly, if it is necessary.
The remarkable progress of information technology (IT) will go ahead with putting EBM into practice in the near future.
