Blockchain Technologies: Hyperledger Fabric in BIM Work Processes

Blockchain Technology (BCT) is defined as a decentralized data ledger that registers each transaction processed in an encrypted data format. The implementation of such a concept brings about several benefits to the built environment, specifically, Building Information Modeling (BIM) workflow. These include, for instance, security, reliability, accountability, and could potentially accelerate a shift in the work environment dynamics from the current centralized data processing to a decentralized, cooperative chain of transactions by encouraging trust and transparency. Hyperledger Fabric (HLF) is a BCT implementation that generates distributed ledger systems, supported by a modular design, offering a flexible and extensible digital framework, that delivers high levels of confidentiality, and scalability. It has a modular subsystem designed so that different employments can be plugged in and implemented over time. This paper reviews the BCT platforms and describes the details of the various components/modules and their interactions and functions. Furthermore, the study proposes a new work process based on HLF that aims to address some of the current BIM workflow shortcomings. The paper discusses how the HLF system enhances the BIM work process and presents a use case of automated code compliance checking mechanisms and future research directions.