“Old Habits Die Hard!” Eyetracking Based Experiential Transcoding: A

study with Mobile Users

Elgin Akpinar1 and Yeliz Yesilada2

1Middle East Technical University, Ankara, Turkey

2Middle East Technical University Northern Cyprus

Campus, Guzelyurt, Mersin 10 Turkey

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Experiential Transcoding…

• Experiential transcoding aims to transcode web pages into more accessible forms based on the understanding of user’s experience.

• Focus on eyetracking based experiential transcoding.• Improve interaction of disabled and mobile web users.

• What is the effect?

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Findings!• Even though our participants performed better with

transcoded web pages, our study shows that “old habits die hard”!

• Although people are not satisfied with their current small screen device web browsing support, they still manage to use it and look for similar support in transcoded versions.

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Eyetracking Based Transcoding

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Prototype

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User Study Details…• Hypothesis

– Participants who performed tasks on transcoded pages are more satisfied with their performance and system, in terms of task completion, system usability, information quality and interface quality.

• Materials– Six web pages in 3 complexity group: apple, babylon, yahoo, avg,

godaddy and BBC.• Measurement

– Used the After-Scenario Questionnaire (ASQ);– The Post-Study System Usability Questionnaire: system usefulness

(SYSUSE), information quality (INFOQUAL) and interface quality (INTERQUAL).

• Procedure– Task based: Browsing tasks and searching tasks

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Results - Participants

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Results - Usability

Original TranscodedMean Std.

Dev.Mean Std. Dev.

ASQ Overall, I am satisfied with the ease of completing this task

5.840 1.179 6.240 1.091

SYSUSE It is easy to use this system 6.080 1.115 6.200 1.080

INFOQUAL It was easy to find the information I needed

5.720 1.429 6.280 0.891

INTERQUAL Overall, I am satisfied with the system

5.920 1.152 6.000 1.443

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Results - Overall

Original TranscodedMean Std. Dev. Mean Std. Dev.

ASQ 6.113 0.829 6.300 0.849

SYSUSE 5.846 1.121 6.195 0.735

INFOQUAL 5.890 1.075 6.300 0.997

INTERQUAL 5.650 1.337 5.760 1.448

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Summary and Future Work• Even though our participants performed better with

transcoded web pages, our study shows that “old habits die hard”!

• Although people are not satisfied with their current small screen device web browsing support, they still manage to use it and look for similar support in transcoded versions.

• A more individualised transcoding might be better - need to investigate further!

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Thanks!• Open Data:

– http://emine.ncc.metu.edu.tr/transcoding_us er_experiment.html• Full Project Details:

– http://emine.ncc.metu.edu.tr/• Thanks to:

– The Scientific and Technological Research Council of Turkey (TUBITAK) • Contacts:

– Yeliz Yesilada, yyeliz@metu.edu.tr

• Thank you for your questions!