Iterations as the result of social and technical factors : empirical evidence from a large-scale design project

Piccolo, Sebastiano A. and Maier, Anja M. and Lehmann, Sune and McMahon, Chris A. (2019) Iterations as the result of social and technical factors : empirical evidence from a large-scale design project. Research in Engineering Design, 30 (2). pp. 251-270. ISSN 0934-9839 (https://doi.org/10.1007/s00163-018-0301-z)

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Abstract

Understanding the role of iterations is an important topic within design research and design practice. Iterations often involve rework and thus often increased costs and completion time. Many theories and studies ascribe iterations either to the social or technical complexity of the design process. Here, we join the two perspectives by analysing metadata of more than 3000 documents produced during the design of a biomass power plant. We gain insights by using network analysis and by visualising the temporal unfolding of the design process. Subsequently, we develop a statistical model to rigorously test multiple hypotheses showing that iterations are a combination of technical and social factors. The paper shows that iterations increase when the number of stakeholders/participants increases and when external suppliers are involved. Iterations are lower in presence of integrative activities. Furthermore, the paper shows the existence of synergistic interactions between nodes' in-going and out-going flow in both activity and team networks associated with an increase in iterations.

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