Toward Lean Management for Digital Fabrication: a Review of the Shared Practices of Lean, DfMA and dfab

Ng, Ming Shan; Hall, Daniel

doi:10.24928/2019/0204

Cited by 13 publications

(24 citation statements)

References 31 publications

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“…DFAB technologies include subtractive manufacturing such as Computer Numeric Control (CNC) and additive manufacturing such as 3D printing. The industry is still urging for management for DFAB to improve the adoption and implementation in construction projects (Ng & Hall, 2019).…”

Section: Dfab Bim and Eci In Designmentioning

confidence: 99%

Digital fabrication, BIM and early contractor involvement in design in construction projects: a comparative case study

Graser

Hall

2021

Architectural Engineering and Design Management

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Digital Fabrication (DFAB) is a systemic innovation with low adoption rates in architecture, engineering and construction (AEC) projects. Managing requirements of a new design process is one major challenge for the increased DFAB adoption. For other types of innovations, practices such as Building Information Modelling (BIM) and Early Contractor Involvement (ECI) improve design management by integrating process, information and organisation in construction projects. In theory, BIM and ECI could improve design management and increase the adoption of DFAB. However, the relationship between DFAB, BIM and ECI has not yet been studied thoroughly. There is a need to understand new paradigms of DFAB design management in regard to process integration, information integration and organisational integration. This study undertakes a comparative study of four DFAB adoptions in AEC projects with varying levels of BIM and ECI implementation. The design processes of DFAB are traced using swimlane process diagrams. From this, relationships between DFAB, BIM, and ECI are derived using a quadripartite interrelationship diagram. This work illustrates the proposed relationships in DFAB adoption in design using a fishbone diagram. This work concludes with potential future research in design management for digital fabrication, including five takeaways for practitioners to adopt and manage DFAB in the design process of construction projects.

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Section: Dfab Bim and Eci In Designmentioning

confidence: 99%

Digital fabrication, BIM and early contractor involvement in design in construction projects: a comparative case study

Graser

Hall

2021

Architectural Engineering and Design Management

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“…Discrete design and construction processes in traditional delivery models such as DBB hinders DFAB implementation (Ng et al 2020). TVD, which facilitates concurrent engineering and design-to-target-values, has been proposed as a potential design management approach to manage DFAB in the design process and maximise values to project stakeholders (Ng and Hall 2019). However, the use of DFAB in TVD in construction is still new in the industry.…”

Section: Discussionmentioning

confidence: 99%

“…To address this, researchers have investigated novel design approaches for DFAB such as Design for Automation (DfA) (Bridgewater 1993) and Robot-Oriented Design (Bock and Linner 2015). Ng and Hall (2019) investigate the intersection of lean management with DfMA and DFAB to identify shared practices of concurrent engineering and design-to-target-values. These two keys practices seem critical to foster organisation, information and process integration and maximise values for project stakeholders on DFAB projects (Rybkowski 2009;Ng et al 2020).…”

Section: Point Of Departure Design For Digital Fabrication (Dfab) In Constructionmentioning

confidence: 99%

“…TVD is lean-based approach that involves design based on detailed cost estimates (Macomber et al 2007). TVD enables concurrent engineering, design-to-target-values and maximise values to project stakeholders (Ballard and Morris 2010;Miron et al 2015;Tommelein and Ballard 2016;Ng and Hall 2019). However, TVD requires a radically different design management approach than found in traditional DBB projects.…”

Section: Introductionmentioning

confidence: 99%

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Teaching Target Value Design for Digital Fabrication in an Online Game: Overview and Case Study

Ng¹,

Hall²

2021

Proc. 29th Annual Conference of the International Group for Lean Construction (IGLC)

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Digital fabrication (DFAB) for construction automation is emerging in the industry. However, DFAB requires better integration of fabrication-related information and organisation into the design process. Discrete processes in traditional delivery models such as Design-Bid-Build can hinder DFAB implementation when stakeholders find it hard to manage project costs. Target Value Design (TVD) has been proposed as possible approach to manage the DFAB design process, but management of DFAB using TVD is still new in the industry. Meanwhile, existing educational games have been successful at teaching players the basic principles of TVD principles. However, these games do not explicitly consider how players should select from advanced fabrication processes. They also have not yet been adopted for online play. This work presents an overview of an online TVD for DFAB game that can 1) help players understand basic TVD principles and 2) explicitly considers fabrication processes and resulting production times as an additional project value. The paper presents the results of a validation case played by 36 construction professionals, researchers and students in December 2020. Overall, this work contributes to the body of knowledge in learning and teaching TVD, online lean games, and technology adoption.

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“…The potential benefits of DfMA as part of a lean construction mindset have been recognized [26,31]. The practices of lean thinking, including pull-planning, design-to-cost, and standardization, are shared with DfMA [32].…”

Section: Dfma and Lean Constructionmentioning

confidence: 99%

DfMA: Towards an Integrated Strategy for a More Productive and Sustainable Construction Industry in Australia

Langston

Zhang

2021

Sustainability

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Design for manufacture and assembly (DfMA) is an important part of the future of the construction industry due to the promise of speed of project delivery, quality control, worker safety, and waste minimization onsite via the purposeful design for manufacture and assembly offsite. However, the adoption of DfMA in Australia has been slow. This paper investigates the barriers prohibiting widespread uptake and how digital construction will be a catalyst for improving use on commercial-scale projects. A total of six leading experts were interviewed to elicit their opinions, and seven recent case studies of high-rise modular apartment and hotel buildings constructed by Hickory were cross-referenced as evidence of DfMA capability. The experts suggested that the reasons for slow adoption in Australia were community mindset, government regulations and incentives, planning and building codes, unionization and business politics, finance, and supply chain management. The case studies suggest that compatible building type and transportation distance are also factors. These barriers can be addressed by the clever integration of building information modelling tools with lean construction processes as part of a proposed strategy leading to smarter (more productive) and better (more sustainable) outcomes predicated on growth in digital construction practices. The paper concludes with a proposed framework for change that conceptualizes the ‘ecosystem’ needed to support widespread DfMA in the Australian context, including the paradigm shift from building to manufacturing/assembly, the displacement of workers from onsite to offsite activity, and the expansion of interdisciplinary design and construct collaboration.

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Toward Lean Management for Digital Fabrication: a Review of the Shared Practices of Lean, DfMA and dfab

Cited by 13 publications

References 31 publications

Digital fabrication, BIM and early contractor involvement in design in construction projects: a comparative case study

Digital fabrication, BIM and early contractor involvement in design in construction projects: a comparative case study

Teaching Target Value Design for Digital Fabrication in an Online Game: Overview and Case Study

DfMA: Towards an Integrated Strategy for a More Productive and Sustainable Construction Industry in Australia

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