英文摘要 |
As observing the trend of medical treatment system in Taiwan values the subject of the patient safety increasingly. All expect to reduce the possibility of medical errors using Information Technology. For example on patient's prescribe, most large hospitals develop the Physician Order Entry System (POES) by themselves to decrease man-made medical error, although computerized POES made great assistance on physician's prescriptions, but it is still far from perfect control system as we usually expected. On the case of keyboarded prescription which has replaced handwritten process, it is cause of the communication errors from HCI (Human-Computer Interface). While the inadequate user interface of POES derived from the traditional design methods and designers' subjective recognition, it may be raised the medication errors. By the point of view, the purpose of this study is to survey the interface design problems of POES at present. Moreover, to bring up the principles of the POES interface design and references for the health care system to prevent medication errors. The research of interface usability evaluation is targeted to three POES subjects from Veterans General Hospitals Taipei (VGHTPE), Changhua Christian Hospital, and Ten-Chen General Hospital. Totally studies are carried on three study stages: 'distinguishing stage', 'collect as evidence stage' and 'confirm stage'. The distinguishing stage is focused on implementations of pre-testing and questionnaire to obtain the interface usability problems from clients. On the collect as evidence stage, it apply Thinking Aloud Method using video/audio recording and hand-written note to collect the real users' operating records from the system interface. On the confirm stage, the usability experts state themselves views of interface usability problem and put forward amendments. The achievement of this research includes: (1) To distinguish the consensus and differences of the POES interface usability subjection between physicians and usability experts; (2) To bring out the design principles of the POES user interface to ensure patient's safeness and trustiness. |