Abstract Blockchain as an emergent decentralized digital technology has been widely explored in many sectors to remedy the deficiencies of centralized solutions It has been recognized that blockchain technology has great potential to facilitate business activities spanning the whole life cycle of a building project in the construction industry, such as better communication or understanding, documents sharing, stage transition and quality endorsement. A comprehensive review of the literature regarding the application of blockchain in the construction domain found that there are few studies and applications of blockchain in construction practices, and most of the current research involves qualitative studies only. In this paper, we aim to explore the feasibility of applying both public blockchain and private blockchain technologies in the construction industry using two industry cases. Two business process cases (i.e., Case 1 and Case 2) were selected and used to drive the blockchain-based software system architecture design. The proposed architectures were demonstrated using Hyperledger Fabric (a private, permissioned and open source blockchain platform) and Ethereum (a public blockchain platform) respectively, to reflect the different requirements of the two use cases. This pilot study also illustrates the process, benefits, and challenges of adopting private and public blockchain technologies in construction domain. This research provides insights to researchers and practitioners regarding the adoption of blockchain technology, especially in construction industry.

中文翻译：

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公共和私有区块链在建筑业务流程和信息集成中

摘要 区块链作为一种新兴的去中心化数字技术，在许多领域得到了广泛的探索，以弥补中心化解决方案的不足。人们已经认识到，区块链技术具有促进跨越建筑行业建筑项目整个生命周期的商业活动的巨大潜力，例如更好的沟通或理解、文件共享、阶段过渡和质量背书。对区块链在建筑领域应用的文献进行综合回顾发现，区块链在建筑实践中的研究和应用很少，目前的研究大多只涉及定性研究。在本文中，我们旨在通过两个行业案例探索将公共区块链和私有区块链技术应用于建筑行业的可行性。选择了两个业务流程案例（即案例 1 和案例 2）来驱动基于区块链的软件系统架构设计。分别使用 Hyperledger Fabric（私有、许可和开源区块链平台）和以太坊（公共区块链平台）演示了提议的架构，以反映两个用例的不同要求。该试点研究还说明了在建筑领域采用私有和公共区块链技术的过程、好处和挑战。这项研究为研究人员和从业者提供了关于采用区块链技术的见解，尤其是在建筑行业。