https://doi.org/10.24928/2017/0248

Comparing Choosing by Advantages and Weighting, Rating and Calculating Results in Large Design Spaces

María Gabriela Correa1, Paz Arroyo2, Claudio Mourgues3 & Forest Flager4

1Master Student, Construction Engineering and Management Dept., School of Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile, +569 56189350, mgcorrea1@uc.cl
2Assistant Professor, Pontificia Universidad Católica de Chile, Santiago, Chile, +56 22354-4244, parroyo@ing.puc.cl
3Assistant Professor, Pontificia Universidad Católica de Chile, Santiago, Chile, +56 22354-4244, cmourgue@ing.puc.cl
4Research Associate and Lecturer, Department of Civil and Environmental Engineering, Stanford University, Califoria, United States, +1.415.728.7197, forest@standford.edu

Abstract

Architecture, Engineering and Construction (AEC) projects are complex systems that are evaluated based on many factors. Multi-Criteria Decision Making (MCDM) methods are used to support AEC project teams in this process. Traditionally, these decisions are made using the Weighting, Rating and Calculating (WRC) method. Recent literature shows benefits of the Choosing By Advantages (CBA) method compared to WRC. However, these studies have been made in the context of comparing and ranking a small number of design alternatives (2-10). This research presents a case study in which CBA and WRC are applied to a large design space. The results show that CBA allowed for a more complete comparison of design alternatives. In addition, CBA enabled decision makers to explicitly evaluate performance versus cost, which led to more transparent and Pareto optimal decisions considering all alternatives in the design space.

Keywords

Choosing By Advantages, CBA, WRC, Large Design Spaces, Multi-Disciplinary Optimization.

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Reference

Correa, M.G. , Arroyo, P. , Mourgues, C. & Flager, F. 2017, 'Comparing Choosing by Advantages and Weighting, Rating and Calculating Results in Large Design Spaces' In:, 25th Annual Conference of the International Group for Lean Construction. Heraklion, Greece, 9-12 Jul 2017. pp 259-266

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