A Blockchain-based and Privacy-Protected Method for Sharing of BIM Big Data

Integrating blockchain with building information modelling (BIM): a systematic review based on a sociotechnical system perspective

“…From a general perspective, the paradigm of integrating blockchain and BIM is applied to improve the information model and document management and assign access to information retrieval by the project participants and external observers through smart contracts (Guo et al , 2022; Wang et al , 2022b). In this manner, governance processes become streamlined (Dounas et al , 2021); moreover, numerous intermediaries can be removed as greater control and transparency are provided to the client (Darabseh and Martins, 2020).…”

“…Specifically, several frameworks and models have been proposed to improve the design process. Although these approaches to integration vary, they are all committed to improving the tracking of the design changes and identifying responsibility (Dounas et al , 2021; Tao et al , 2022; Zheng et al , 2019a), thus ensuring the consistency of models and the notification of drawing updates (Pradeep et al , 2021; Wang et al , 2022b). The creation of Non-Fungible Tokens (NFTs – unique cryptographic tokens that exist on a blockchain and cannot be replicated) using blockchain technology was suggested by Casillo et al (2022) to address the issues of authentication and copyright management of object libraries.…”

“…Zheng et al (2019b) then designed an access control model to handle roles and permissions securely. Besides, interplanetary file system (IPFS) technology, as a peer-to-peer distributed file system arrangement, is considered to be a subsidised technology for blockchain for storing and distributing large files; thus, as a more secure off-chain storage solution, it has been used widely in various integration frameworks (Dounas et al , 2019; Jiang et al , 2022; Hamledari and Fischer, 2021; Pradeep et al , 2020; Wang et al , 2022b). These frameworks store key data in IPFS, with their changes and hashes being stored on the chain.…”

“…For example, during the design phase, blockchain enables the recording of modification history as a means of determining how ownership and Building information modelling responsibility for the model are divided and assigning the access rights of participants (Guo et al, 2022). When models are updated, the models of participants can also be automatically updated in real-time, which creates an environment of trust and facilitates effective collaborative design (Wang et al, 2022b). In the construction and operation phases, the integrated solutions of blockchain, smart contracts, BIM and other assistive technologies are widely proposed for quality accountability and tracking, improving the traceability of asset maintenance records and automated maintenance operations (Lee et al, 2021;Ye et al, 2022).…”

Fusion of Building Information Modeling and Blockchain for Metaverse: A Survey

“…The network of the blockchain could be private network, which means the data of BIM could save to the block to keep privacy [56]. Blockchain is a decentralized technology that can accelerate the shift of workflow dynamics from the current hierarchical structure to a decentralized, collaborative chain of command, and influence cultural and social change by encouraging trust and transparency [57].…”