Framework Design of Smart Contracts-Based Building Information Modeling Contracts Management in Material Supply Chain

Abstract

Disputes in the construction industry occur from time to time. The development of the building information model enables the information in the process of project execution in the construction industry to be stored in the same model, which can find appropriate communication channels for disputes between different parties involved in engineering projects. As an emerging technology, Blockchain has received wide attention and is widely used in various fields because of its distributed storage, decentralization, and de-trust characteristics. Furthermore, smart contracts technology provides a new solution to the existing difficulties of disputes in the construction engineering industry from the perspective of replacing traditional contracts. Based on the research of Blockchain and smart contracts technology, this paper analyzes the feasibility of applying Blockchain and smart contracts to contracts management of the construction information model and discusses the implementation plan of combining Blockchain and contracts management of the construction information model with the actual scenario of material supply in the construction industry, choosing Ethereum blockchain platform as the underlying architecture and adopting " The development of smart contracts for construction material supply is carried out by adopting the "on-chain off-chain" data storage and business interaction method, and the specific design and implementation are carried out from the perspectives of system architecture, system deployment, contracts invocation mechanism, and contracts function.