Biomedical Engineering Reference
In-Depth Information
sonification concept for design by a UX framework of a technology—
WhatsOnWeb—
which
is a communication technology that users can interact with through several alternative input
devices (e.g., brain computer interaction). In Chapter 16, we will analyze the design and eval-
uation of
WhatsOnWeb
and telemedicine tools (Nu!Rhea Desk) that are not only described
as the means by which users can obtain their goals (i.e., as an AT) but also as eAssistive
Solutions (eAS) that are able to increase the user's well-being in a specific context of use.
15.5 Conclusions
By presenting a complete review of usability standards and a deep analysis of the differ-
ence between usability and the UX concept, this work discusses the UX framework in the
field of rehabilitation. The chapter is divided into four parts:
1. The first section illustrates the different approaches and fields of application
behind User eXperience, that is to say, a holistic perspective on how a user feels
about using a system or, following the ISO (1999) definition, “a consequence of the
presentation, functionality, system performance, interactive behaviour, and assis-
tive capabilities of an interactive system, both hardware and software.”
2. In the second section, we describe both the usability and accessibility theoretical
constructs and their relation with the UX perspective, by analyzing the differences
among the evaluation objectives, the concept of accessibility, and the concept of
usability under the UX theoretical approach. A brief overview of international
standards on usability is shown here.
3. The third section introduces an integrated model of interaction evaluation, a new
conceptual perspective that is based on the UX framework that focuses on the
intrasystemic dialogue between user and system within the interaction environ-
ment. Following this new approach, the accessibility and usability evaluation
processes become a bidirectional way of observing the person-technology interac-
tion rather than merely objective/subjective factors.
4. Finally, in the fourth section we present different examples concerning the appli-
cation of the UX framework to the design process of systems for rehabilitation.
First, the analysis within the ATA process is shown. Moreover, an overview of
the state of the art concerning sonification methods is illustrated. Finally, we
introduce a visual sonificated web search clustering engine called
WhatsOnWeb,
a new communication technology developed by following a user-centered
design process.
The evaluation of the interaction between users and eSystems is analyzed by an integrated
model of interaction in which the relation between the designers' and the users' mental
models are evaluated by the evaluator's mental model from both the objective and the
subjective points of view. The new perspective endorsed by the chapters is that the UX
concepts can be used not only to set up an evaluation of the users' interaction with AT, but
also to organize and evaluate the ATA process, and to design (or redesign) new technolo-
gies able to overcome the barriers usually experienced by disabled users. In particular,
