Scaling notifications beyond alerts: from subtly drawing attention up to
forcing the user to take action
release_i5ui2rz2srcytdcrokab2w3wsu
by
Denys J.C. Matthies, Laura Milena Daza Parra, Bodo Urban
2018
Abstract
New computational devices, in particular wearable devices, offer the unique
property of always being available and thus to be able to constantly update the
user with information, such as by notifications. While research has been done
in sophisticated notifications, devices today mainly stick to a binary level of
information, while they are either attention drawing or silent. In this paper,
we want to go further and propose scalable notifications, which adjust the
intensity reaching from subtle to obtrusive and even going beyond that level,
while forcing the user to take action. To illustrate the technical feasibility
and validity of this concept, we developed three prototypes providing
mechano-pressure, thermal, and electrical feedback and evaluated them in
different lab studies. Our first prototype provides subtle poking through to
high and frequent pressure on the user's spine, which creates a significantly
improved back posture. In a second scenario, the users are enabled to perceive
the overuse of a drill by an increased temperature on the palm of a hand until
the heat is intolerable and the users are forced to eventually put down the
tool. The last project comprises a speed control in a driving simulation, while
electric muscle stimulation on the users' legs conveys information on changing
the car's speed by a perceived tingling until the system independently forces
the foot to move. Although our selected scenarios are long way from being
realistic, we see these lab studies as a means to validate our
proof-of-concept. In conclusion, all studies' findings support the feasibility
of our concept of a scalable notification system, including the system of
forced intervention. While we envisage the implementation of our
proof-of-concept into future wearables, more realistic application scenarios
are worthy of exploration.
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