15-06-2012, 04:30 PM
Designing Mobile and Ubiquitous Computing Applications
[attachment=24614]
The PAL usability study
To understand whether we could use
a mobile phone as the PAL interface, we
built a compound prototype using the
phone as the interface to the application
core running on a PC. This let us conduct
a controlled usability study prior to
developing a fully functioning version of
PAL on a mobile phone.
The limited performance and interface
of the selected platform (the Motorola
iDEN i730, a clamshell, Java-enabled
phone) raised concerns about PAL’s
usability. When closed, the phone offers
only three buttons for input, a 150 10
pixel graphical monochrome display,
and an LED that lights to one of three
colors (green, red, and blue).
Compound prototypes
Compound prototypes are representative
artifacts that combine a design’s physical
and computational nature by providing
a realistic UI that controls a faithful
implementation of the application on
another computing system. Compound
prototypes have helped IT product
development—for example, developers
working on a digital camera for Kodak
attached a physical prop of the camera,
which provided the UI, to a PC,
Paratypes
Marion Buchenau and Jane Fulton
Suri show, with their concept of experience
prototypes, that designers can use a
prototype for gathering feedback on the
experience involved in using a certain
design—role-playing a train journey, for
example.4 Extending this concept, situated
experience prototypes let researchers
and designers observe user experiences
by simulating a technology’s potential use
in real-life situations—not in a lab or in
role-playing. In this sense, we define situated
experience prototypes as paratypes:
models (“-types”) of interaction experiences
that happen alongside (“para-”)
real, experienced situations.
The PAL human proxy study
In the second study, the human proxy
study, we tackled acceptance questions
related to the burden imposed on conversation
partners’ privacy and the social
appropriateness of using the application,
both from a relational viewpoint and
with regards to disrupting interpersonal
interaction. We surveyed the PAL user’s
conversation partners, asking:
[attachment=24614]
The PAL usability study
To understand whether we could use
a mobile phone as the PAL interface, we
built a compound prototype using the
phone as the interface to the application
core running on a PC. This let us conduct
a controlled usability study prior to
developing a fully functioning version of
PAL on a mobile phone.
The limited performance and interface
of the selected platform (the Motorola
iDEN i730, a clamshell, Java-enabled
phone) raised concerns about PAL’s
usability. When closed, the phone offers
only three buttons for input, a 150 10
pixel graphical monochrome display,
and an LED that lights to one of three
colors (green, red, and blue).
Compound prototypes
Compound prototypes are representative
artifacts that combine a design’s physical
and computational nature by providing
a realistic UI that controls a faithful
implementation of the application on
another computing system. Compound
prototypes have helped IT product
development—for example, developers
working on a digital camera for Kodak
attached a physical prop of the camera,
which provided the UI, to a PC,
Paratypes
Marion Buchenau and Jane Fulton
Suri show, with their concept of experience
prototypes, that designers can use a
prototype for gathering feedback on the
experience involved in using a certain
design—role-playing a train journey, for
example.4 Extending this concept, situated
experience prototypes let researchers
and designers observe user experiences
by simulating a technology’s potential use
in real-life situations—not in a lab or in
role-playing. In this sense, we define situated
experience prototypes as paratypes:
models (“-types”) of interaction experiences
that happen alongside (“para-”)
real, experienced situations.
The PAL human proxy study
In the second study, the human proxy
study, we tackled acceptance questions
related to the burden imposed on conversation
partners’ privacy and the social
appropriateness of using the application,
both from a relational viewpoint and
with regards to disrupting interpersonal
interaction. We surveyed the PAL user’s
conversation partners, asking: