Journal Articles

Permanent URI for this collectionhttps://mro.massey.ac.nz/handle/10179/7915

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Author: search.filters.author.Yiu TWSubject: search.filters.subject.09 Engineering

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Now showing 1 - 4 of 4
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    Behavioral transition: A framework for the construction conflict - Tension relationship
    (1/08/2007) Yiu TW; Cheung SO
    Conflicts are inevitable in construction projects. One of the reasons is that all construction projects involve complex human interactions. Previous studies have shown that behavioral states can respond dynamically as the magnitude of a conflict increases. This has been empirically demonstrated using a catastrophe-theory-based, three-variable system involving the level of construction conflict, the level of tension, and the amount of behavioral flexibility (Yiu and Cheung, 2006). This paper reports on a study that builds on the above-mentioned study by Yiu and Cheung, and examines the application of moderated multiple regression (MMR) to the three-variable system. It was found that not all MMR models display a significant moderating effect. Two out of six MMR models were found to be significant in their effect. These models affirm that the nature of the relationship between the degree of uncertainty and adversarial attitudes (or mistrust level) varies, depending on the behavioral flexibility of the parties. Disordinal interactions were also found, suggesting that the interaction between behavioral flexibility and the conflict-tension relationship can change radically. Critical points for the degree of uncertainty were also able to be calculated. Beyond these points, even a flexible individual may find difficulty in minimizing or resolving construction conflicts. As such, it is suggested that such radical changes could be prevented by minimizing the degree of uncertainty in construction projects. © 2007 IEEE.
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    Building Information Modeling Education for Quantity Surveyors in Hong Kong: Current States, Education Gaps, and Challenges
    (1/01/2023) Keung CCW; Yiu TW; Feng Z
    Rapid developments in building information modeling (BIM) are escalating the architecture, engineering, and construction (AEC) industry toward digital transformation. However, the lack of skilled BIM professionals is a critical issue slowing this transformation. Currently, few educational institutions include BIM topics in their curricula, especially those developed for quantity surveying (QS) programs. Moreover, the learning outcomes of BIM curricula may not meet the current industrial requirements. Thus, this study investigated the current states, gaps, and challenges of BIM education for QS practices in Hong Kong. This study conducted surveys to determine industrial requirements and a case study to examine the BIM curricula currently offered at Hong Kong educational institutions. The results suggest that the current BIM education for QS practices is in line with the pace of BIM development in the AEC industry. However, some advanced topics are not covered in BIM education. Additionally, the non-standardized BIM competencies to be attained by students lead to uncertainty and challenges in BIM education for quantity surveyors.
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    Blockchain-aided information exchange records for design liability control and improved security
    (1/06/2021) Erri Pradeep AS; Yiu TW; Zou Y; Amor R
    With the recent advances in Information and Communication Technologies in the construction industry, information is exchanged digitally with little regard to the contracts that govern them. Although parties collaborating in project design are contracted to the client, they transact with each other when using BIM and other collaborative practices without any direct contractual relationship among themselves. This results in a lack of design liability control and an increase in claims and disputes. Further, the use of multiple software packages results in the exposure of data to third parties, data corruption and compromise in data privacy (using data for unintended purposes), data integrity (unauthorised access to sensitive data), and data longevity (loss of data post-handover). This study investigates blockchain technology (BCT) to address these issues using a design science research method. The current information exchange processes were mapped to identify the critical transactions that may benefit from record-keeping on the blockchain. Next, a prototype was designed to demonstrate and evaluate the proposed BCT integrated process models. Three key project processes, design review, design coordination and request for information; and two potential conflict scenarios during and post-construction were simulated as part of the evaluation. The prototype's implementation exhibits BCT's ability to record snapshots of individual design inputs to the overall project design and to enable a clear and long-term record of key exchange transactions. This improves the design liability control for contributing stakeholders and the auditability of the exchange records. Further, the proofs derived from such a system are independent of any third-party storage or subscription. Given the nature of records stored in a blockchain, the existence, integrity, and authenticity of information along with its associated metadata can be verified in the long-term as well. Therefore, BCT could be a supplementary technology that supports the existing information exchange systems.
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    Logistic regression modeling of construction negotiation outcomes
    (15/08/2008) Yiu TW; Cheung SO; Chow PT
    Construction disputes are always negotiated before other resolution methods are considered. When it comes to negotiation, the tactics used by a negotiator is central in deriving desired outcomes. This paper reports a research that employs logistic regression (LR) to predict the probabilistic relationship between negotiator tactics and negotiation outcomes. To achieve this, three main stages of work were involved. Negotiator tactics and negotiation outcomes were first identified from literature. Then, four LR prediction models with negotiation outcomes as the dependent variable and negotiator tactics as the independent variables were constructed. Finally, these models were validated with an independent set of testing data. These models collectively suggested that: 1) increasing time pressure, taking threats, or subjecting the opponent to reality testing are inductive to "deterioration" negotiation outcomes; 2) providing various options and increasing flexibility would achieve "substantial improvement" in negotiation; 3) relationships between parties could be maintained by fair play; and 4) focusing on information exchange, giving middiscussion summaries, and offering counterproposal could clarify a party's position. Despite the skepticism over frank and open discussion of the issues and the existence of game plan, the findings of this research do support some well-established negotiation principles-focus on the issue and play down behavioral factors. © 2008 IEEE.