Assessing the Effectiveness of Traditional and Virtual Reality Interfaces in Spherical Mechanism Design

Paul T. Evans
Southwest Research Institute

Judy M. Vance
Iowa Center for Emerging Manufacturing Technology
Iowa State University
Ames, IA 50011

Veronica J. Dark
Psychology Department
Iowa State University

ASME Computers in Engineering Conference Proceedings, September 13-16, 1998, Atlanta, Georgia, CD/ROM paper number DETC98/CIE-5546

Abstract
Virtual reality (VR) interfaces have the potential to enhance the engineering design process, but before industry embraces them, the benefits must be understood and documented. The current research compared two software applications, one which uses a traditional human-computer interface (HCI) and one which uses a virtual reality HCI, that were developed to aid engineers in designing complex three-dimensional spherical mechanisms. Participants used each system to design a spherical mechanism and then evaluated the different interfaces. Participants rated their ability to interact with the computer images, their feelings about each interface, and their preferences for which interface device to use for certain tasks. The results indicated that participants preferred a traditional interface for interaction tasks and a VR interface for visual tasks. These results provide information about how to improve implementation of VR technology, specifically for complex three-dimensional design applications.

For more information, see Effectiveness of Virtual Reality as a Tool to Facilitate Engineering Design of Spherical Mechanisms