61,248 research outputs found
A model for predicting the visual complexity of in-vehicle interfaces
This paper describes the development of a model that can be used to estimate the visual complexity of in-vehicle graphical user interfaces (GUI) and to reduce the distraction of in-vehicle interfaces and thus improve the driving performance. The first version of this model was validated using a GUI that was designed for an interactive C2X application. Using the model, the visual complexity for different screens of the GUI was calculated. 22 participants performed a simple ticket reservation task with the GUI while performing a driving task. A significant correlation was found between the visual complexity and the time until action. Although this result indicates the potential of the developed model, the model has to be refined and further validated in future iterations
Oral messages improve visual search
Input multimodality combining speech and hand gestures has motivated numerous
usability studies. Contrastingly, issues relating to the design and ergonomic
evaluation of multimodal output messages combining speech with visual
modalities have not yet been addressed extensively. The experimental study
presented here addresses one of these issues. Its aim is to assess the actual
efficiency and usability of oral system messages including brief spatial
information for helping users to locate objects on crowded displays rapidly.
Target presentation mode, scene spatial structure and task difficulty were
chosen as independent variables. Two conditions were defined: the visual target
presentation mode (VP condition) and the multimodal target presentation mode
(MP condition). Each participant carried out two blocks of visual search tasks
(120 tasks per block, and one block per condition). Scene target presentation
mode, scene structure and task difficulty were found to be significant factors.
Multimodal target presentation proved to be more efficient than visual target
presentation. In addition, participants expressed very positive judgments on
multimodal target presentations which were preferred to visual presentations by
a majority of participants. Besides, the contribution of spatial messages to
visual search speed and accuracy was influenced by scene spatial structure and
task difficulty: (i) messages improved search efficiency to a lesser extent for
2D array layouts than for some other symmetrical layouts, although the use of
2D arrays for displaying pictures is currently prevailing; (ii) message
usefulness increased with task difficulty. Most of these results are
statistically significant.Comment: 4 page
A Development Environment for Visual Physics Analysis
The Visual Physics Analysis (VISPA) project integrates different aspects of
physics analyses into a graphical development environment. It addresses the
typical development cycle of (re-)designing, executing and verifying an
analysis. The project provides an extendable plug-in mechanism and includes
plug-ins for designing the analysis flow, for running the analysis on batch
systems, and for browsing the data content. The corresponding plug-ins are
based on an object-oriented toolkit for modular data analysis. We introduce the
main concepts of the project, describe the technical realization and
demonstrate the functionality in example applications
Analyzing library collections with starfield visualizations
This paper presents a qualitative and formative study of the uses of a starfield-based visualization interface for analysis of library collections. The evaluation process has produced feedback that suggests ways to significantly improve starfield interfaces and the interaction process to improve their learnability and usability. The study also gave us clear indication of additional potential uses of starfield visualizations that can be exploited by further functionality and interface development.
We report on resulting implications for the design and use of starfield visualizations that will impact their graphical interface features, their use for managing data quality and their potential for various forms of visual data mining. Although the current implementation and analysis focuses on the collection of a physical library, the most important contributions of our work will be in digital libraries, in which volume, complexity and dynamism of collections are increasing dramatically and tools are needed for visualization and analysis
Experiences with starfield visualizations for analysis of library collections
This paper presents a qualitative and formative study of the uses of a starfield-based visualization interface for analysis of library collections. The evaluation process has produced feedback that suggests ways to significantly improve starfield interfaces and the interaction process to improve their learnability and usability. The study also gave us clear indication of additional potential uses of starfield visualizations that can be exploited by further functionality and interface development. We report on resulting implications for the design and use of starfield visualizations that will impact their graphical interface features, their use for managing data quality and their potential for various forms of visual data mining. Although the current implementation and analysis focuses on the collection of a physical library, the most important contributions of our work will be in digital libraries, in which volume, complexity and dynamism of collections are increasing dramatically and tools are needed for visualization and analysis
gCSP: A Graphical Tool for Designing CSP systems
For broad acceptance of an engineering paradigm, a graphical notation and a supporting design tool seem necessary. This paper discusses certain issues of developing a design environment for building systems based on CSP. Some of the issues discussed depend specifically on the underlying theory of CSP, while a number of them are common for any graphical notation and supporting tools, such as provisions for complexity management and design overview
- âŠ