Studying the human-computer-terminology interface.

摘要: Objective: To explore the use of an observational, cognitive-based approach for differentiating between successful, suboptimal, and failed entry coded data by clinicians in actual practice, to detect whether causes unsuccessful attempts capture true intended meaning were due terminology content, representation, or user interface problems. Design: Observational study with videotaping subsequent coding events outpatient clinic at New York Presbyterian Hospital. Participants: Eight attending physicians, 18 resident 1 nurse practitioner, using Medical Entities Dictionary (MED) record patient problems, medications, adverse reactions medical system. Measurements: Classification as failed, estimation cause; recording system response time total event time. Results: Two hundred thirty-eight analyzed; 71.0 percent 6.3 22.7 failed; entries problems content 13.0 events, representation 10.1 usability 5.9 events. Response averaged 0.74 sec, 40.4 sec. Of additional 209 tasks related drug dose frequency terms, 94 0.5 6 overall success rate 82 percent. Conclusions: Data MED was generally successful efficient. The observational permitted detection false- positive (suboptimal) false-negative (failed interface) entry. � J Am Med Inform Assoc. 2001;8:163-173.