Randomly allocating subjects in an intervention group, where the information is provided, and a control group without such an intervention offers an ideal environment for comparison. Consequently, randomized controlled clinical trials are emerging as the ultimate sources of evidence on the practical value of information. If the physician has to enter the data, the system use needs sophistication, and interpretation of the output requires caution, the decision-support system has no chance for success. It is important that new systems quickly and smoothly become integrated with the usual processes of care. The information systems of Intermountain Health Care in Utah and the Regenstrief Institute in Indiana are examples of gradual and successful integration.
Patients can get electronic mail advice.
Clinicians are sharing information about challenging cases to get input from others. While distant sources of information are increasingly available, practitioners have to learn the judicious use of the new technology.