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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...

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A new input device: comparison to three commercially available mouses.

J N A Brown1, W J Albert, J Croll

  • 1Faculty of Kinesiology, University of New Brunswick, 2 Peter Kelly Dr., Fredericton, NB E3C 1M6, Canada.

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A new human-centered computer input device matches commercial device performance with comparable postural demands. This ergonomic innovation offers similar accuracy to traditional mice without increased postural risk.

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Area of Science:

  • Human-Computer Interaction
  • Ergonomics
  • Biomechanics

Background:

  • Traditional computer input devices can lead to postural strain.
  • Evaluating new ergonomic input devices is crucial for user health.
  • Existing research often focuses on performance, not simultaneous postural analysis.

Purpose of the Study:

  • To compare the postural demands and performance of a novel human-centered computer input device against three market-available devices.
  • To test the hypothesis that the new device offers comparable performance with reduced postural strain.

Main Methods:

  • 24 experienced computer users participated.
  • Modified Steering and Fitts' Law Tests were employed.
  • Postural behavior was captured using an opto-electric system.

Main Results:

  • Postural data showed unexpected similarities between the new and commercial devices.
  • Performance data indicated no significant difference compared to most commercial devices.
  • Findings suggest further investigation into familiarity versus mastery.

Conclusions:

  • The new human-centered device achieves comparable accuracy to commercial devices.
  • It allows for relaxed posture use with no greater postural risk than a traditional mouse on an ergonomic workstation.