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An Exploratory Study Comparing CAD Tools and Working Styles for Implementing Design Changes

Published online by Cambridge University Press:  26 July 2019

Vrushank Shripad Phadnis*
Affiliation:
Massachusetts Institute of Technology;
Kevin Alfonso Leonardo
Affiliation:
Massachusetts Institute of Technology;
David Robert Wallace
Affiliation:
Massachusetts Institute of Technology;
Alison Louise Olechowski
Affiliation:
University of Toronto
*
Contact: Phadnis, Vrushank Shripad, Massachusetts Institute of Technology, Mechanical Engineering, Canada, vphadnis@mit.edu

Abstract

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This paper presents the findings of a preliminary study comparing implementation of design changes using various computer-aided design (CAD) working styles. Our study compares individuals’ and pairs’ completion of a series of changes to a toy car CAD model. We discuss the results in terms of productivity and value added ratio, derived from time-based quantitative data. We also discuss qualitative findings acquired through post-study surveys. Overall, our findings suggest that pairs were less efficient than individual designers due to overheads like communication, history dependency and complex couplings within the CAD model tree. However, it is also noteworthy that within each pair the lead participant's performance was at par with individual participants. Lastly, we also discuss behaviors and patterns that emerge as unique to the synchronous collaborative environment, motivating future work.

Information

Type
Article
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.
Copyright
© The Author(s) 2019