Margins Leading to Over-Capacity

Jones, D. A.; Eckert, C. M. and Gericke, K. (2018). Margins Leading to Over-Capacity. In: DS92: Proceedings of the DESIGN 2018 15th International Design Conference (Marjanović, D.; Štorga, M.; Škec, S.; Bojčetić, N. and Pavković, N. eds.), The Design Society, pp. 781–792.

DOI: https://doi.org/10.21278/idc.2018.0520

Abstract

This paper categorises and describes the design stages, stakeholders and decision processes of an overcapacity boiler upgrade that came about from the excessive use of design margins. Using a hospital case study, the reason behind the overcapacity and excessive margins is explored using semi-structured interviews, document analysis and process modelling. Design margins arise from a lack of systemic thinking during the design and installation phases. It is likely that margins are added as a matter of habit
with no real thought to their applicability, calling into question the design process.

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