... medication errors (potential and actualerrors), the CPOE system was associated with fewer errors, afinding they repeatedly stress. When they examined majormedication errors, however, or even moderate errors ... ‘medication errors , ‘CPOE’, how wemeasure errors, and what types of errors we are ‘reducing’with CPOE systems. I find five lessons in their work.The complexity of medication prescribingerrorShulman ... prescribingerrors overwhelmingly count errors that do not affect patients.We almost always count potential errors, not actual adversedrug events; and even then, we usually find the inconse-quential errors. When...