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An empirical comparative evaluation of gestUI to include gesture-based interaction in user interfaces

机译：gestUI的经验比较评估，将基于手势的交互包括在用户界面中

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Currently there are tools that support the customisation of users' gestures. In general, the inclusion of new gestures implies writing new lines of code that strongly depend on the target platform where the system is run. In order to avoid this platform dependency, gestUI was proposed as a model-driven method that permits (i) the definition of custom touch-based gestures, and (ii) the inclusion of the gesture-based interaction in existing user interfaces on desktop computing platforms. The objective of this work is to compare gestUI (a MDD method to deal with gestures) versus a code-centric method to include gesture-based interaction in user interfaces. In order to perform the comparison, we analyse usability through effectiveness, efficiency and satisfaction. Satisfaction can be measured using the subjects' perceived ease of use, perceived usefulness and intention to use. The experiment was carried out by 21 subjects, who are computer science M.Sc. and Ph.D. students. We use a crossover design, where each subject applied both methods to perform the experiment. Subjects performed tasks related to custom gesture definition and modification of the source code of the user interface to include gesture-based interaction. The data was collected using questionnaires and analysed using non-parametric statistical tests. The results show that gestUI is more efficient and effective. Moreover, results conclude that gestUI is perceived as easier to use than the code-centric method. According to these results, gestUI is a promising method to define custom gestures and to include gesture-based interaction in existing user interfaces of desktop-computing software systems. (C) 2018 Elsevier B.V. All rights reserved.
机译：当前，有支持自定义用户手势的工具。通常，包含新手势意味着编写新代码行，这些行代码很大程度上取决于运行系统的目标平台。为了避免这种平台依赖性，建议将gestUI作为一种模型驱动的方法，该方法允许（i）定义基于触摸的自定义手势，以及（ii）将基于手势的交互包含在桌面计算的现有用户界面中平台。这项工作的目的是将gestUI（一种处理手势的MDD方法）与一种以代码为中心的方法进行比较，以在用户界面中包括基于手势的交互。为了进行比较，我们通过有效性，效率和满意度来分析可用性。满意度可以使用受试者的感知易用性，感知有用性和使用意图来衡量。该实验由21位计算机科学硕士（M.Sc.和博士学位学生们。我们使用交叉设计，每个受试者都应用两种方法来执行实验。受试者执行与自定义手势定义和用户界面源代码修改有关的任务，以包括基于手势的交互。使用问卷调查收集数据，并使用非参数统计检验进行分析。结果表明，gestUI更加有效。此外，结果得出结论，认为gestUI比以代码为中心的方法更易于使用。根据这些结果，gestUI是定义自定义手势并将基于手势的交互包括在桌面计算软件系统的现有用户界面中的一种有前途的方法。 （C）2018 Elsevier B.V.保留所有权利。

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