Measurement of user performance and attitudes assists the initial design of a computer user display and orientation method.
Measurement of user performance and attitudes assists the initial design of a computer user display and orientation method.
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用户表现和态度的测量有助于计算机用户显示和定向方法的初始设计。
DOI：
10.1007/bf02899511
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
MazuzanJr,JE
中科院分区：
文献类型：
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作者：
Chase,CR;Ashikaga,T;MazuzanJr,JE
Objective.我们研究的目的是在应用程序开始之前，评估视觉界面计算机辅助麻醉记录（VISI-CAARE）的拟议用户界面的可接受性。用户界面被定义为用户显示及其用户定位方法。方法.我们设计了方法来测量用户对两种不同麻醉记录程序的表现和态度：（1）我们医院的传统笔和纸麻醉记录程序，和（2）VISI-CAARE。表现测量包括反应速度（识别事件的类型和时间）和完成速度（描述事件）。性能还包括事件记录时间的准确性和描述的准确性。用户的态度是通过（1）医生对麻醉护理中计算机潜在有用性的评分（0 - 9）;（2）在临床环境中使用未来应用程序的意愿;（3）用户的变更建议。这些测量结果被用于一项随机试验的21名医生，其中20名医生的数据是可用的。暴露于VISI-CAARE后，实验受试者的麻醉护理中计算机有用性排名显著改善（4.2 ± 1.1至7.6 ± 1.5，p = 0.0001），对照组也是如此（5.2 ± 2.6至8 ± 1.5，p = 0.0019）。所有的志愿者都愿意在临床上尝试所提出的原型。VISI-CAARE暴露与传统笔和纸机器对事件的更快和更准确的反应相关，而在人工模拟设置中，事件的反应更慢和更准确。VISI-CAARE 1.1在对用户显示和定向方法进行更改后，与VISI-CAARE 1.0相比，在反应速度和完成速度方面均表现出显著改善。使用图形用户界面原型环境，人们可以获得初步的用户态度和性能数据，甚至在应用程序编程开始之前。这可能有助于修改初始显示和定向方法，同时在实际程控和临床测试之前获得用户兴趣和承诺。
Objective. The objective of our study was to assess the acceptability of a proposed user interface to visually interfaced computer-assisted anesthesia record (VISI-CAARE), before the application was begun. The user interface was defined as the user display and its user orientation methods. Methods. We designed methods to measure user performance and attitude toward two different anesthesia record procedures: (1) the traditional pen and paper anesthetic record procedure of our hospital, and (2) VISI-CAARE. Performance measurements included the reaction speed (identifying the type and time of an event) and completion speed (describing the event). Performance also included accuracy of the recorded time of the event and accuracy of the description. User attitude was measured by (1) the physician’s rating on a scale of 0 to 9 of the potential usefulness of computers in anesthesia care; (2) willingness to use the future application in the clinical environment; and (3) user suggestions for change. These measurements were used in a randomized trial of 21 physicians, of which data from 20 were available.Results. After exposure to VISI-CAARE, the experimental subjects’ ranking of computer usefulness in anesthesia care improved significantly (4.2 ± 1.1 to 7.6 ± 1.5, p = 0.0001), as did controls’ (5.2 ± 2.6 to 8 ± 1.5, p = 0.0019). All the volunteers were willing to try the proposed prototype clinically, when it was ready. VISI-CAARE exposure was associated with faster and more accurate reaction to events over the traditional pen and paper machine, and slower and more accuratedescriptionof events in an artificial mock setting. VISI-CAARE 1.1 demonstrated significant improvements in both reaction speed and completion speed over VISI-CAARE 1.0, after changes were made to the user display and orientation methods.Conclusion. With graphic user interface prototyping environments, one can obtain preliminary user attitude and performance data, even before application programming is begun. This may be helpful in revising initial display and orientation methods, while obtaining user interest and commitment before actual programming and clinical testing.