This study takes a critical look at Takt planning and takt control (TPTC) by analysing a successful case project. In the study, the digital system architecture and collected data are used for providing a process breakdown and analysis in terms of waste and potential root causes. The paper shows how vulnerable the TPTC is for disruptions caused by a lead waste, making-do/task diminishment, and ad-hoc tolerance management. Based on the digital footprint of the project, an explanation is given why good results in terms of money, customer satisfaction, time and quality were achieved even though the takt was practically lost towards the end of the project. The results indicate that the excellent outcome of the project was not based on TPTC and steep learning curve. Instead, the results were achieved by exploiting the real-time situation awareness provided by the digitalised smart site and disciplined use of applications, as well as by a pragmatic approach to planning and leading work on-site. The validity of the results is limited as the conclusions are drawn based on only one TPTC project.
Platform ecosystems facilitated by the internet are changing the way market mechanisms work. The platform ecosystem business model, using data and network effects, creates new rules for how value is created and delivered. The viral growth characteristic to platform ecosystems has already caused disruption in several industries. The purpose of the research is to explore business opportunities facilitated by the platform ecosystem business model in the construction sector through an example case of a residential building construction. The key concepts and underpinning logics of the platform ecosystem business model are defined. Interactions between the five lean principles and the platform ecosystem concept are reviewed. Finally, an example case of implementation is represented with the help of the platform business model canvas.
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