An Exploratory Study Comparing CAD Tools And Working Styles For Implementing Design Changes

DS 94: Proceedings of the Design Society: 22nd International Conference on Engineering Design (ICED19)

Year: 2019
Editor: Wartzack, Sandro; Schleich, Benjamin; Gon
Author: Phadnis, Vrushank Shripad (1); Leonardo, Kevin Alfonso (1); Wallace, David Robert (1); Olechowski, Alison Louise (2)
Series: ICED
Institution: Massachusetts Institute of Technology
Section: Design methods and tools
DOI number:
ISSN: 2220-4342


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.

Keywords: Computer Aided Design (CAD), Collaborative design, Online CAD, Design process, Design management


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