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Abstract:

Rework in Building Design (BD) processes has a multitude of impacts on the performance of construction projects. A Multi-Domain Matrix (MDM) is a modelling technique to identify and analyse the effects of rework and iteration loops on the process and product of complex engineering systems. However, there are fewer MDM analyses on the effect of rework on the productivity of designers. Therefore, we propose an adaptation of an existing MDM to assess the productivity of the BD rework process. We incorporate significant BD productivity factors consolidated from previous work: change impact, design competency, layers of approvals, communication, and technology availability. For the productivity analysis, we present two MDMs of different types of components in a building project. Practitioners can use the productivity MDM to streamline their BD process and improve construction project performance. The designer productivity model can also be adapted to other engineering design processes subject to rework.

Keywords:

Multi-Domain Matrix, productivity, redesign, rework, construction industry, building design