Tangible User Interface for Chemistry Education: Comparative Evaluation and Re-Design
Artikel i vetenskaplig tidskrift, 2007
tangible user interface (TUI) for organic chemistry education.
The empirical evaluation described in this paper compares
learning effectiveness and user acceptance of AC versus the
more traditional ball-and-stick model (BSM). Learning
effectiveness results were almost the same for both learning
environments. User preference and rankings, using NASATLX
and SUMI, showed more differences and it was
therefore decided to focus mainly on improving these aspects
in a re-design of the AC system. For enhanced interaction,
keyboard-free system configuration, and internal/external
database (DB) access, a graphical user interface (GUI) has
been incorporated into the TUI. Three-dimensional (3D)
rendering has also been improved using shadows and related
effects, thereby enhancing depth perception. The re-designed
AC system was then compared to the old system by means of
a small qualitative user study. This user study showed an
improvement in subjective opinions about the system’s ease
of use and ease of learning.