Cognitive engineering

In navigating large information spaces, previous work indicates potential advantages of physical navigation (moving eyes, head, body) over virtual navigation (zooming, panning, flying). However, there is also indication of users preferring or settling into the less efficient virtual navigation. We present a study that examines these issues in the context of large, high resolution displays. The study identifies specific relationships between display size, amount of physical and virtual navigation, and user task performance. Increased physical navigation on larger displays correlates with reduced virtual navigation and improved user performance. Analyzing the differences between this study and previous results helps to identify design factors that afford and promote the use of physical navigation in the user interface.

Move to improve: promoting physical navigation to increase user performance with large displays

A display apparatus includes an image processor which processes an image to display an image content; a display unit which displays thereon an image content that is processed by the image processor; and a controller which displays a user interface (UI) menu including a plurality of UI items to search the image content, as one of a two-dimensional (2D) layout by which the plurality of UI items are arranged in a 2D manner, and a three-dimensional (3D) layout by which the plurality of UI items are arranged in a 3D manner , and changes displaying the one of the layouts to display the other of the layouts according to a user's command while maintaining a continuity of the arrangement of the plurality of UI items. Accordingly, search for an image content can be efficiently performed by using a UI menu.

Display apparatus and control method thereof

Larger, higher-resolution displays are becoming accessible to a greater number of users as display technologies decrease in cost and software for the displays improves. The additional pixels are especially useful for information visualization where scalabitity has typically been limited by the number of pixels available on a display. But how will visualizations for larger displays need to fundamentally differ from visualizations on desktop displays? Are the basic visualization design principles different? With this potentially new design paradigm comes questions such as whether the relative effectiveness of various graphical encodings are different on large displays, which visualizations and datasets benefit the most, and how interaction with visualizations on large, high-resolution displays wit[ need to change. As we explore these possibilities, we shift away from the technical limitations of scalability imposed by traditional displays [e.g. number of pixels] to studying the human abilities that emerge when these limitations are removed. There is much potential for information visualizations to benefit from large, high-resolution displays, but this potential wit[ only be realized through understanding the interaction between visualization design, perception, interaction techniques, and the display technology. In this paper we present critical design issues and outline some of the challenges and future opportunities for designing visualizations for large, high-resolution displays. We hope that these issues, challenges, and opportunities will provide guidance for future research in this area.

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Information visualization on large, high-resolution displays: issues, challenges, and opportunities

The scalability of information visualizations has typically been limited by the number of available display pixels. As displays become larger, the scalability limit may shift away from the number of pixels and toward human perceptual abilities. This work explores the effect of using large, high resolution displays to scale up information visualizations beyond potential visual acuity limitations. Displays that are beyond visual acuity require physical navigation to see all of the pixels. Participants performed various information visualization tasks using display sizes with a sufficient number of pixels to be within, equal to, or beyond visual acuity. Results showed that performance on most tasks was more efficient and sometimes more accurate because of the additional data that could be displayed, despite the physical navigation that was required. Visualization design issues on large displays are also discussed.

/pdf/beyond-visual-acuity-the-perceptual-scalability-of-36cqsfpava.pdf

Beyond visual acuity: the perceptual scalability of information visualizations for large displays

Tiling multiple monitors to increase the amount of screen space has become an area of great interest to researchers. While previous research has shown user performance benefits when tiling multiple monitors, little research has analyzed whether much larger high-resolution displays result in better user performance. We compared user performance time, accuracy, and mental workload on multi-scale geospatial search, route tracing, and comparison tasks across one, twelve (4x3), and twenty-four (8x3) tiled monitor configurations. We also compare user performance time in conditions that uniformly curve the twelve and twenty-four monitor displays. Results show that curving displays decreases user performance time, and we observed less strenuous physical navigation on the curved conditions. Depending on the task, the larger viewport sizes also improve performance time, and user frustration is significantly less with the larger displays than with one monitor.

/pdf/evaluation-of-viewport-size-and-curvature-of-large-high-utgju7ns06.pdf

Evaluation of viewport size and curvature of large, high-resolution displays

In an embodiment, a method allows interacting with a textual programming language in a development environment The development environment includes a first field and a second field related to the first field An entry for the first field is received at the development environment One or more required programming structure attributes for the second field are determined based on the entry for the first field A first GUI of one or more input suggestions for the second field is generated The one or more input suggestions for the second field comply with the one or more required programming structure attributes for the second field The first GUI is displayed in connection with the textual programming language to illustrate one or more input suggestions for the second field

Input suggestions for free-form text entry

We propose an interface design process compatible with scenario-based design methods, but specifically intended to facilitate three primary goals: design knowledge reuse, comparison of design products, and long-term research growth within HCI. This effort describes a computer-aided design tool suite, LINK-UP, which supports the design process for specific genre of systems that cross many domains—notification systems. We describe the vision for LINK-UP, contrasting underlying concepts with typical task-based modeling approaches. To achieve its stated goals, the design process is organized and guided by critical parameters, presenting several challenges that we reflect on through the results of a design simulation study. The possibilities envisioned through this approach have important implications for the integration of reusable design knowledge, HCI processes, and design support tools.

/pdf/automating-a-design-reuse-facility-with-critical-parameters-23a1stknll.pdf

AUTOMATING A DESIGN REUSE FACILITY WITH CRITICAL PARAMETERS Lessons Learned in Developing the LINK-UP System

A device receives a program code being created or edited, executes a first portion of the program code to generate a first result, and executes a second portion of the program code to generate a second result. The device stores the first result and the second result, and compares the first result and the second result to determine a difference between the first result and the second result. The device utilizes the difference to identify an error in the program code, and provides information, associated with the difference and the error, for display.

Continuous evaluation of program code and saving state information associated with program code

We propose an interface design process compatible with scenario-based design methods, but specifically intended to facilitate three primary goals: design knowledge reuse, comparison of design products, and long-term research growth within HCI. This effort describes a computer-aided design tool suite, LINK-UP, which supports the design process for specific genre of systems that cross many domains-notification systems. We describe the vision for LINK-UP, contrasting underlying concepts with typical task-based modelling approaches. To achieve its stated goals, the design process is organised and guided by critical parameters, presenting several challenges that we reflect on through the results of a design simulation study. The possibilities envisioned through this approach have important implications for the integration of reusable design knowledge, HCI processes, and design support tools.

John E. Booker

Papers

Evaluation of viewport size and curvature of large, high-resolution displays

Input suggestions for free-form text entry

AUTOMATING A DESIGN REUSE FACILITY WITH CRITICAL PARAMETERS Lessons Learned in Developing the LINK-UP System

Continuous evaluation of program code and saving state information associated with program code

Automating a Design Reuse Facility with Critical Parameters