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Tendering & Bidding generally involve many construction units participating in a project bidding. The purchaser selects the best bidder with a short construction period, low cost, high quality, and good reputation. There are huge economic benefits and points of concern behind it. Tendering suffers an increased risk of data tampering due to the cent...
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Citations
... Gong et al. [2] present a comprehensive framework for evaluating e-tendering systems using blockchain technology. Their work underscores the critical need for robust evaluation mechanisms that can adequately assess the effectiveness of blockchain implementations in the e-tendering domain. ...
The tendering process is a critical component in the procurement practices of governments and companies worldwide. However, this process often encounters challenges that undermine its efficiency, transparency, and security. Traditional tendering methods are plagued by issues such as complex documentation, lack of transparency, susceptibility to corruption, and significant security vulnerabilities. To address these challenges, our project introduces a novel approach that integrates blockchain technology into the tendering process. This integration aims to revolutionize the way tenders are issued, managed, and awarded by leveraging the strengths of blockchain, such as decentralization, immutability, and advanced cryptographic security. Our system comprises three main modules—Admin, Tender Officer, and Bidder—each designed to streamline the respective functionalities within the tendering cycle. By utilizing smart contracts for process automation and cryptographic hash functions (SHA-256) for data integrity, the proposed system not only enhances the security and transparency of the tendering process but also significantly reduces the risks of corruption and breaches. The adoption of blockchain technology in tendering processes marks a significant leap forward in procurement practices, offering a more secure, efficient, and transparent method for conducting transactions.
... Findings from the study indicated that employing decentralised ledgers can reinforce the quality and consistency of data for effective planning and enhance the security, accountability, and transparency of data. To overcome the problems of data tampering during preconstruction activities, Gong et al. [36] explored solutions to the e-tendering process by creating a secure blockchain-based evaluation framework to secure data during e- bidding. The proposed framework contributed to realising a fasttendering evaluation process by keeping data immutable and traceable. ...
... An indicative state-of-art landscape on DT and BC applications in the AEC-FM emerged from the reviewed literature included in this study. Findings in this study also provide evidence that efforts and interests within DT and BC have gained increased attention within 2019-2022 [8], [10], [18], [23], [25], [27], [28], [26], [36], [41], [52], [55], [74], [90], [91], [124], [125], [148]) BC for Construction 44 ([3], [8], [9], [11], [15], [17], [18], [20], [21], [30], [31], [32], [35], [43], [42], [52], [53], [59], [60], [66], [69], [70], [78], [80], [72], [81], [88], [89], [93], [100], [105], [108], [112], [117], [118], [119], [120], [131], [136], [140], [144], [149], [150], [151]) BC for Post-Construction 5 ( [40], [47], [104], [108], [128]) (108 papers). Within that same period, the observed years of publications were 2020-2022 (98 papers), and they collectively represent about 90% of DT and BC studies within the AEC-FM context. ...
This paper reviews the potential applications of Digital Twins (DT) and Blockchain (BC) technologies throughout the building lifecycle phases by conducting a double-stranded systematic review of papers on the possible use of DT and BC. The results revealed the increasing interest in DT and BC and their potential use in all building lifecycle phases; however, studies focused mainly on the construction phase. The findings also revealed unique features of DT and BC, potentially supporting the proposal for their collaborative implementation to enhance building lifecycle management. This review's findings positioned the argument for more research on integrating DT and BC to augment building lifecycle management and the need to explore their relevance or role when transitioning from construction to post-construction. This paper elucidates readers on the potential role of DT and BC while developing a built asset and suggests directions for future research.
The construction sector, one of the most ancient industries globally, holds a crucial role in the progress and development of societies. However, it faces persistent productivity and efficiency challenges, rendering it a relative setback when compared to other sectors. In the ever-evolving landscape of the construction industry, characterized by complex projects, numerous stakeholders, and intricate contractual agreements, the integration of emerging technologies presents an unprecedented opportunity for transformation. Smart contracts (SCs), underpinned by blockchain (BC) technology, hold the potential to streamline and revolutionize traditional construction processes. Current literature shows a lack of comprehensive quantitative understanding of how Blockchain-enabled Smart Contracts (BSC) can affect the construction sector. To address this gap, the authors have (1) conducted a systematic keyword analysis of literature on SC in construction from Scopus and Web of Science (WoS) databases; (2) conducted a strengths–weaknesses–opportunities–threats (SWOT) analysis of BSC’s adoption in the construction industry from 174 peer-reviewed papers; (3) identified a holistic list of 72 factors steering BSC adoption in construction, categorized into the 4 aspects of the SWOT framework; (4) performed social network analysis (SNA) to quantitively assess the literature in terms of the identified factors; and (5) conducted clustering analysis to categorize combination of factors frequently highlighted in research publications into common groups. This research offers a comprehensive and methodical evaluation of the potential advantages, applications, and challenges associated with integrating BSC in the construction industry. The findings of SNA and clustering reveal a notable lack of investigation into certain combinations of factors in existing academic research. This disparity and the ensuing knowledge gaps may affect SC’s adoption in the construction sector. To this end, this study equips stakeholders with the insights necessary to make informed decisions in this rapidly evolving sector and contributes to a roadmap for future BSC construction-related research. Doi: 10.28991/CEJ-2024-010-05-020 Full Text: PDF
