A collocated multi-mobile collaborative system with hover connectivity initiation and seamless multi-touch interactivity
This research focuses on the collocated multi-mobile system (CMMS) which combines multiple mobile devices to become one shared large surface that could provide tabletop interactivity and group collaboration. However, several usability issues are yet to be discovered: (i) the cumbersome and confus...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/77009/1/FSKTM%202018%2073%20-%20IR.pdf |
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| Summary: | This research focuses on the collocated multi-mobile system (CMMS) which combines
multiple mobile devices to become one shared large surface that could provide tabletop
interactivity and group collaboration. However, several usability issues are yet to be
discovered: (i) the cumbersome and confusing process to calibrate and align display of
multiple mobile devices (ii) the lack of multi-touch gesture that can span across the
boundaries of multiple mobile devices. Hence, this research aims to study the
performance and user experience of connectivity initiation and multi-touch interaction
on a CMMS. The research creates a new way to align the display and to allow multi-touch
support to spans across multiple screens. The research methodology used is the
User-Centered Design (UCD) approach where the process starts from understanding
requirements, designing, prototyping and evaluating through a usability test. There are
three main studies were carried out which covered the preliminary study, connectivity
initiation study and multi-touch study for CMMS. The studies used quantitative and
qualitative approaches. During preliminary study, it was found that the initiating process
to connect multiple mobile device was time consuming, confusing and cumbersome. The
preliminary study also observed that users tended to perform a multi-touch gesture on
multiple screens but currently multi-touch gesture is not applicable to existing
multi-mobile systems. The first connectivity initiation study was conducted to evaluate
several approaches to perform connectivity initiation. Two best approaches were
identified based on its performance and users experience on the medium-fidelity
prototype. The hover and the swipe approach were found to be the two of the best
approaches in terms of shorter time completion, higher user preference ratings and lower
perceive workload index. These two approaches were then implemented for designing
the high-fidelity prototype. The first multi-touch study also showed that user preferred
the seamless multi-touch setting when evaluate using medium fidelity prototype. The
second connectivity initiation study was then conducted to compare between the hover
and swipe approach based on users’ feedbacks. It was found that the hover approach was
able to reduce the time required to perform the connectivity initiation by 25%, compared
with the swipe approach. The user rated the hover approach better in term of perceive
workload rating compare to swipe approach. The second multi-touch study also found
that user experience was significantly improved when multi-touch across the devices was enabled. It was found that the seamless multi-touch setting help reduced the time
completion by 25.29%, reduce the average movement by 20.18% and reduce the error
rate by 58.3%. In general, the results supported that hover approach and seamless
multi-touch interaction had improved the issues surrounding the connectivity initiation
and multi-touch for CMMS. The findings of this research can contribute to the growing
body of research on CMMS by implementing the proposed solution to further address
similar issues in their research works. |
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