Measuring the Impact of Blockchain and Smart Contract on Construction Supply Chain Visibility

TL;DR

This paper empirically evaluates how blockchain and smart contracts enhance construction supply chain visibility, showing significant improvements in information accuracy and completeness over traditional methods, especially at higher granularity levels.

Contribution

It provides a comparative empirical analysis demonstrating the substantial benefits of blockchain in improving supply chain visibility in construction projects.

Findings

Blockchain increased information accuracy by 261%.

Blockchain improved information completeness by 216%.

Traditional solutions declined in performance with increased granularity.

Abstract

This work assesses the impact of blockchain and smart contract on the visibility of construction supply chain and in the context of payments (intersection of cash and product flows). It uses comparative empirical experiments (Charrette Test Method) to draw comparisons between the visibility of state-of-practice and blockchain-enabled payment systems in a commercial construction project. Comparisons were drawn across four levels of granularity. The findings are twofold: 1) blockchain improved information completeness and information accuracy respectively by an average 216% and 261% compared with the digital state-of-practice solution. The improvements were significantly more pronounced for inquiries that had higher product, trade, and temporal granularity; 2) blockchain-enabled solution was robust in the face of increased granularity, while the conventional solution experienced 50% and 66.7% decline respectively in completeness and accuracy of information. The paper concludes with a discussion of mechanisms contributing to visibility and technology adoption based on business objectives.