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Ayinla, K, Cheung, F and Tawil, R-A (2019) Towards an Ontology-Based Approach to Measuring Productivity for Offsite Manufacturing Method . In: Gorse, C and Neilson, C J (Eds.), Proceedings 35th Annual ARCOM Conference, 2-4 September 2019, Leeds Beckett University, Leeds, UK Association of Researchers in Construction Management, 587-596.

  • Type: Conference Proceedings
  • Keywords: DFMA, estimating, offsite-manufacturing, ontology, productivity.
  • ISBN/ISSN:
  • URL: http://www.arcom.ac.uk/-docs/proceedings/6319b483bc16f3ca561b2dd5069c24af.pdf
  • Abstract:

    Offsite manufacturing, an aspect of DFMA methods is getting recognised as a way to boost productivity and performance of the construction industry however, there is yet to be a holistic approach to ensure that optimum productivity is attained. Construction industry practitioners are more interested in being able to achieve low production and assembly cost, at the best possible time and with the highest quality. However most of the widely adopted measurement methods are focused on either macro or micro (industry or company) level measurement and there is arguable no recognition for the product development (PD) stage. For DFMA products, there are needs to focus on product related factors such as the size, weight, and other features with respect to the manufacturing and assembly process so as to meet certain productivity and performance requirements. The ability to measure these criteria at the product development (PD) stage is crucial to increasing the performance and productivity of a DFMA project. Using the scenario of a panel system of offsite manufacturing as a proof-of-concept, we argue that systemising the product development process (PDP) knowledge of offsite manufactured products allows practitioners to make informed choices on product design to best suit performance and productivity requirements and presents the potential to bridge the gap between academic research and the practical needs of the industry. An ontology knowledge modelling approach is used to capture the semantics of the production and assembly processes of a panelised offsite system in order to develop an understanding of how performance and productivity can be measured and optimised in the product development stage of a DFMA project.  The proposed method helps to reduce the level of uncertainty by encouraging measurable evidence and allows for better decision making on product design choices.