Persona-Technology footprint: an evaluation of 144 student’s perception of a person using assistive technology

The persona-technology footprint is the
visual balance between the enabling technologies associated with an individual
and the person. This design heuristic enables a practitioner to quickly assess
the area of visible technology compared with that of the person. The objective
of a designer is to minimise the perceived technology and emphasise the
personality of the individual. This study looks to provide detail about the
visual balance between areas of a person covered by assistive technology and
which areas of a person it is important to ensure are visible. A survey of 144
undergraduate design students involved them choosing where they considered they
no longer saw ‘the person’, due to them being covered by assistive technology.
This involved three different line drawings: one that had different sections of
the person’s profile blacked out to represent the presence of equipment in
front of the person; the second with the outer profile of the person visually
broken by the overlapping blacked section; and, a line drawing of a person’s
head with blacked out sections that both covered areas of the head and broke
the outer profile. The points chosen by students were collated and processed
statistically using ANOVA. In all three choices, students chose the point where
the person was covered up to the point of their eyes being covered. This
suggests we view another person’s eyes to represent them more than any other
part of their body. Further studies are required to explore this outcome.

Eye-tracking
experiment was conducted which provides further insights from eye-movement data
of the participants, when making selection between the presented choices. This data-set contains files form the eye-tracking experiment including; images to show
defined Areas of Interests (AOI), heatmaps from the experiment, as well as videos
to present, how pattern of heatmaps and gaze sequence were developed for different
choices. Additionally, the screenshots provide the nomenclature used to denote
each AOI for the experiment. Lastly, the results were extracted from the experiment
in the form of raw files (raw data-set), and further processed to streamline the
relevant data (event statistics, all participants). The files named as; larger AOI
and integrated AOI, shows summarised outcomes from the eye-tracking experiment.

个人与技术足迹的融合，体现为与个体相关联的赋能技术与个人之间的视觉平衡。此设计准则允许实践者迅速评估可见技术区域与个人区域之间的对比。设计师的目标在于最小化感知技术，并强调个体的个性特征。本研究旨在提供关于辅助技术覆盖的人体区域与其重要可见区域的视觉平衡的详细信息。一项涉及144名本科设计学生的调查要求他们选择他们认为由于被辅助技术覆盖而不再看到‘个人’的位置。这包括三种不同的线条图：一种将个人轮廓的不同部分涂黑以代表位于个人前方设备的存在；第二种通过重叠的黑色部分在视觉上破坏了个人外轮廓；以及，一张头部线条图，其黑色部分既覆盖了头部区域，又破坏了外轮廓。学生选择的位置被汇总并使用方差分析（ANOVA）进行统计处理。在所有三种选择中，学生都选择了个人被覆盖到眼睛被覆盖的点。这表明我们更倾向于通过观察他人的眼睛来代表他们，而不是身体的其他任何部分。需要进一步的研究来探索这一结果。

眼动实验进一步提供了参与者进行选择时眼动数据的洞察。此数据集包含眼动实验的文件，包括：展示定义明确的兴趣区域（AOI）的图像、实验的热图以及展示不同选择的热图模式和注视序列发展的视频。此外，截图提供了实验中用于表示每个AOI的命名法。最后，实验结果以原始文件（原始数据集）的形式提取，并进一步处理以简化相关数据（事件统计，所有参与者）。名为较大AOI和集成AOI的文件显示了眼动实验的汇总结果。