Assisted Interaction Data Analysis of Web-Based User Studies

Valencia, Xabier; Pérez, J. Eduardo; Muñoz, Unai; Arrue, Myriam; Abascal, Julio

doi:10.1007/978-3-319-22701-6_1

Cited by 10 publications

(8 citation statements)

References 16 publications

(15 reference statements)

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“…In the experiments we carried out previously (Pérez et al, 2014Valencia et al, 2015), we found that the variability of the characteristics within a user group can be enormous. For this reason, we included the following items in the Knowledge Base: 'Assistive Technology', 'Behaviour', 'Preferences' and 'Device'.…”

mentioning

confidence: 99%

“…The system makes use of an ontology (Gruber, 1993) to model adaptation techniques, the user or the web page, etc. The ontology defined in OWL (2016) was modified in order to adapt the system to the needs identified in the experiments conducted previously (Pérez et al, 2014Valencia et al, 2015) and for it to work within mobile environments.…”

Section: Introductionmentioning

confidence: 99%

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Adapting the Web for People With Upper Body Motor Impairments Using Touch Screen Tablets

Valencia

Pérez

Arrue

et al. 2017

Interacting With Computers

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People with disabilities frequently use the Internet to perform a variety of common activities; however, they may often encounter aggravated accessibility barriers when using mobile devices to access the Web. In order to alleviate the problems faced by this group when using mobile devices, we have extended a previously developed transcoding-based system that adapts nonaccessible web pages to the needs of specific users in order to enhance their accessibility. In this version, we included new adaptation techniques gathered from the literature in order to apply transcoding techniques to mobile devices. The enhanced system was evaluated with eight users with reduced mobility using tablets. The exploratory study suggests that alternative interaction methods such as the ones named 'end tap' and 'steady tap' are beneficial for some participants with reduced mobility, dexterity or strength in the upper limbs. Other results show that six of the eight users preferred the adapted version with enlarged interaction elements which required less physical effort, even if this adaptation increases the size of the page with the disadvantages associated with such a change. RESEARCH HIGHLIGHTS• Introduction and evaluation of a web transcoding system that adapts web pages for people with motor impairments who use touch screen devices.• Tagging the target websites with an extension of the WAI-ARIA mark-up language enabling web transcoding.• From the evaluation, transcoded pages were revealed to be the preferred option for most of the participants, as they require less physical effort.• Participants were classified in function of the type and size of finger movement for target selection on touch screen devices, in order to evaluate the performance of diverse alternative interaction methods or gestures.• Alternative interaction methods were tested by motor impaired users: 'end tap' and 'steady tap' proved to be helpful for people with less finger movement control.

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confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adapting the Web for People With Upper Body Motor Impairments Using Touch Screen Tablets

Valencia

Pérez

Arrue

et al. 2017

Interacting With Computers

Self Cite

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“…The RemoTest platform to design and perform remote user tests [15] [51] was used to conduct this unsupervised longitudinal study. A secure server was in charge of running the remote modules of the RemoTest platform, both to gather interaction data from each participant and to provide them with the target acquisition tasks that had to be repeated regularly.…”

Section: B Apparatusmentioning

confidence: 99%

Longitudinal Study of Two Virtual Cursors for People With Motor Impairments: A Performance and Satisfaction Analysis on Web Navigation

et al. 2020

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The lack of dexterity in the upper limbs of people with motor impairments may prevent the use of standard pointing devices, such as mice, to access graphical user interfaces. In these cases, pointing and clicking are usually performed by means of alternative devices such as joysticks, trackballs or standard keyboards. However, target acquisition can still be challenging for this group of people due to their physical condition. Based on previous works, we developed two virtual cursors: the novel cross cursor and the standard area cursor. They are devoted to assist two different groups of users with link selection within web pages: keyboard-only users, and joystick and trackball users, respectively. Both virtual cursors have been evaluated and compared with the original unassisted cursor in a longitudinal study. Eight people with motor impairments participated in an unsupervised experiment from their own personal computers at home. For a period of six weeks, each participant used both a virtual cursor and the original unassisted cursor to freely navigate the Web, and to perform predefined target acquisition tasks. Interaction data was automatically logged throughout the study along with subjective assessments concerning the usability of the virtual cursor being tested. Results show significant improvements for both virtual cursors in six of the seven cursor parameters studied, albeit with performance variations between some participants. The virtual cursors were extensively used for free web navigation and in their subjective assessments both were positively endorsed by participants who also put forward improvement suggestions for future developments. INDEX TERMS Alternative pointing devices, human performance, longitudinal study, people with motor impairments, user satisfaction, virtual cursors, web accessibility.

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“…Most often these works are related to the web domain and the usability or accessibility of web interfaces. For instance, RemoTest [16] proposes a platform designed for the remote evaluation of usability and the study of interaction with web applications. RemoTest enables experiments to be set up and data to be collected from participants' web browsers using plug-ins.…”

Section: Related Workmentioning

confidence: 99%

DAFIESKU: A System for Acquiring Mobile Physiological Data

Simón¹,

Sarasua²,

Gamecho³

et al. 2017

Mobile Information Systems

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Gathering physiological data when they are performing experiments requires a great effort from researchers. Very often, a considerable time is required to prepare the signal acquisition equipment, conduct the experiments, and properly label the data of each participant. Nevertheless this data is valuable for the analysis of personal characteristics, such as behavior, health conditions, and preferences. With the aim of assisting researchers with such tedious tasks, we have developed the DAFIESKU system. This system serves to acquire several types of physiological data. DAFIESKU facilitates the creation of new datasets with physiological data by means of mobile and wearable devices. The usability of the system was evaluated in two case studies in a two-step iterative process. Before conducting the second case study, the whole system was improved using the feedback obtained from the first case study. The results achieved show that usability was enhanced in the second version of DAFIESKU.

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Assisted Interaction Data Analysis of Web-Based User Studies

Cited by 10 publications

References 16 publications

Adapting the Web for People With Upper Body Motor Impairments Using Touch Screen Tablets

Adapting the Web for People With Upper Body Motor Impairments Using Touch Screen Tablets

Longitudinal Study of Two Virtual Cursors for People With Motor Impairments: A Performance and Satisfaction Analysis on Web Navigation

DAFIESKU: A System for Acquiring Mobile Physiological Data

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