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Purpose: Construction in Malta is generally characterised by small projects operated through fragmented contractual ties and limited technological advances. Through this study, the authors aim to examine the impact of changing client requirements on local construction, analyse the impact of these shifts on project expectations and explore how client requirements can be integrated into the ongoing design phases during the life cycle of the structure. Using a multi-million-euro, multi-phase residential, commercial, and redevelopment construction project as a case study, this paper presents an in-depth analysis of the short-term disruptions and long-term impacts while considering the implications for trade-offs.

Methodology: A mixed-methods approach was used to conduct the analysis. Qualitative data collected from semi-structured interviews showed that projects have different impacts on relationships even when the same organisations work on different trades within the same project. The quantitative data collected was used to analyse the variations caused by trade-offs from the original contracted work packages. The case study setting represents an example of a phenomenological methodology. It adapts existing theories to interpret what happens by examining an example of a phenomenon of interest. Although the conclusions cannot be generalised to the whole construction industry, its merit is that it addresses relationships and processes and is therefore ‘holistic’ rather than limited to isolated factors.

Findings: The findings, illustrate the effects or factors supported by the empirical data towards the main framework that supports the research study model for mapping trade-offs. The model is presented as a three-dimensional framework illustrating the dynamics of objectives, considerations, and time across project life cycles, and goes beyond the control parameters of the project management, cost, quality, and time triangle.

Conclusion: A set of recommendations are presented in relation to the drawing up of project briefs, procurement strategies, and the limitations and implications of embedding client changes.

In this paper, we examined managers’leadership behavior when working on a simulated team project regarding task-oriented versus relationship-oriented leadership behavior to effectively achieve successful project completion.Managers attending an advanced project management development program responded to the Fielder Leadership Behavior Style Self-Assessment, which is a useful framework to determine task-orientedversus relationship-oriented leadership behavioral styles.The degree oftask-oriented versus relationship- oriented leadership behavior styles was assessedto determine the approach taken by the managers forachievingsuccessfulprojectcompletion.APearson’schi-squaretestwasconductedtodeterminewhether the observed values were significantly different from an expected value of five.The findings can contribute to better understanding the leadership styles, which characterize project management accomplishment.

Recent research on construction project management (CPM) envisions addressing wider social good while delivering value to the funding organizations. It is complemented by a growing body of knowledge on social sustainability in construction projects. These two literature streams are currently scattered and there is a lack of holistic guidance on integrating social sustainability with CPM. The current study addresses this knowledge gap through a critical review of these two bodies of literature and thereby proposing a conceptual framework for socially sustainable CPM.

A conceptual modelling approach, involving sequential steps of knowledge acquisition, and knowledge abstraction and representation, has been used. Knowledge acquisition was based on a systematic search and short-listing of research articles and knowledge abstraction was performed through thematic analysis of the 81 shortlisted articles. The categories abstracted through thematic analysis were integrated and presented as the framework.

A framework for socially sustainable CPM, consisting of four social sustainability characteristics and six areas of social sustainability integration in CPM (SSI-CPM), has been proposed. It presents possibilities of integrating social concerns in CPM processes at various levels – ranging from permanent firms that provide resources to the temporary (project) organization that delivers value.

This study seeks to bridge the gap between theory and practice of realizing social good through construction projects. To this end, a conceptual framework has been proposed along with an agenda for future research encompassing social sustainability and CPM.

The megaproject is a vital innovation ecosystem for participants engaging in technological adoption and integration to achieve project goals. The purpose of this paper is to examine how ecosystem captains build and operate a megaproject innovation ecosystem (MIE). To be more specific, we conducted an in-depth case study to identify the roles played by ecosystem captains in establishing and managing a megaproject innovation ecosystem.

Based on the Hong Kong-Zhuhai-Macau Bridge project, the data we collected range from 2010 to 2019 and include semi-structured interviews, informal conversations, and archival documents. We employed an inductive theory building approach to address our research question and analyzed our data using the coding process and Atlas.ti software.

We find that the ecosystem captains themselves are client organizations that have evolved with the ecosystem during four distinct yet inter-related phases. In addition, we find that the captains’ roles of the client organizations include two typical activities: ecosystem establishment and ecosystem collaboration. The ecosystem captains first frame problems, plan innovative activities, set rules, and select participants for the establishment of the ecosystem, and then orchestrate resources, buffer conflicts, incorporate innovative networks, and cultivate an innovation culture to create a collaborative ecosystem.

This study proposes a theoretical framework showing how ecosystem captains engage in MIE to manage innovative activities during different stages. It highlights the importance of captainship roles in client organizations in a megaproject.

The purpose of this paper is to identify the factors that affect TQM implementation in construction companies and it suggests solutions for TQM implementation in a difficult environment.

Studies were carried out at six large construction companies who ply their trade in Southern Africa and in-depth investigations were conducted to assess TQM implementation practices and associated TQM barriers. Interviews were conducted on directors and key personnel that play important roles in TQM implementation in their respective organisations. The empirical study also utilised a number of organisational documents which added rigour to the findings.

This study identified three core categories and ten main barriers affecting TQM implementation in Southern Africa construction companies. The core categories are motivation, infrastructure and penchants and tendencies while the factors are lack of quality support, poor TQM knowledge and TQM awareness, poor information sharing, temporary workers, overdependence on contract document, poor data collection measurement, undefined TQM roles and responsibilities, award to lowest bidder tendency, poor business environment and corruption.

The study was conducted based on companies plying their trade in Southern Africa and mostly around Malawi, Zambia and Mozambique. It does not study companies in Namibia, Zimbabwe, Angola, South Africa and Botswana.

TQM cannot be exported wholly from another region to a new setting without taking into consideration the local factors associated with that setting. For successful TQM implementation in construction in Southern Africa, characteristics of this region have to be known. This study illuminates a number of TQM implementation barriers associated with construction especially applied to this difficult environment. Application of this knowledge would enhance TQM and heighten competitive advantage initiatives. The proportions highlighted in this study therefore help build up the TQM implementation awareness.

At society level, the findings of this study indicate societal problems such as corruption and business environment which require wide level approaches to deal with these barriers. In addition, if TQM applied in road construction projects, the quality of the roads will be improved, this in turn will have direct impact on quality of life in the society, better roads means easier access to hospitals, schools and public places, better transport and movements of goods and services, etc. It can also save money for the country in long run and economic benefits to the society.

The factors identified in this study are based on current TQM implementation practices at established construction companies in Southern Africa. They provide a practical basis for guiding TQM in construction companies operating in difficult environments.

The paper aims to discuss extensions of SPARQL that use regular expressions to navigate RDF graphs and may be used to answer queries considering RDFS semantics (in particular, nSPARQL and our proposal CPSPARQL).

The paper is based upon a theoretical comparison of the expressiveness and complexity of both nSPARQL and the corresponding fragment of CPSPARQL, that we call cpSPARQL.

The paper shows that nSPARQL and cpSPARQL (the fragment of CPSPARQL) have the same complexity through cpSPARQL, being a proper extension of SPARQL graph patterns, is more expressive than nSPARQL.

It has not been possible to the authors to compare the performance of our CPSPARQL implementation with other proposals. However, the experimentation has allowed to make interesting observations.

The paper includes implications for implementing the SPARQL RDFS entailment regime.

The paper demonstrates the usefulness of cpSPARQL language. In particular, cpSPARQL, which is sufficient for capturing RDFS semantics, admits an efficient evaluation algorithm, while the whole CPSPARQL language is in theory as efficient as SPARQL is. Moreover, using such a path language within the SPARQL structure allows for properly extending SPARQL.

The purpose of this paper is to improve the performance of querying and reasoning and querying over large‐scale Resource Description Framework (RDF) data. When processing RDF(S) data, RDFS entailment is performed which often generates a large number of additional triples, which causes a poor performance. To deal with large‐scale RDF data, it is important to develop a scheme which enables the processing of large RDF data in an efficient manner.

The authors propose RDF packages, which is a space efficient format for RDF data. In an RDF package, a set of triples of the same class or triples having the same predicate are grouped into a dedicated node named Package. Any RDF data can be represented using RDF packages, and vice versa.

It is found that using RDF packages can significantly reduce the size of RDF data, even after RDFS entailment. The authors experimentally evaluate the performance of the proposed scheme in terms of triple size, reasoning speed, and querying speed.

The proposed scheme is useful in processing RDF(S) data, but it needs further development to deal with an ontological language such as OWL.

An important feature of the RDF packages is that, when performing RDFS reasoning, there is no need to modify either reasoning rules or reasoning engine; while other related schemes require reasoning rules or reasoning engine to be modified.

This chapter presents two multicriteria optimization models with bi and triple objectives solved with weighted-sum approach. Solved problems are allocation of personnel in a health care institution. To deal with these problems, mixed integer programming formulation has been applied. Results have shown the impact of problem parameter change for importance of the different objectives. Presented problems have been solved using AMPL programming language with solver CPLEX v9.1, with the use of branch and bound method.

The Iron Triangle, also called the Triple Constraint, is a central concept to project management research and practice, representing the relationship between key performance criteria. However, there is disagreement about which criteria should be represented on the vertices of this triangle. The purpose of this paper is to explore which concepts are part of the Iron Triangle, and how these concepts have changed over time.

This paper explores 45 years of project management research, drawing on a database of 109,804 records from 1970 to 2015. Three corpora were constructed, representing the project management and Time, Cost, and Quality Management literature. Time and Cost are consistently identified as part of the Iron Triangle. However, the status of quality is contested. Key concepts in the project management literature were explored using scientometric research techniques, to understand the relationship between these concepts.

Significant links were found between Time, Cost, and Quality, verifying these concepts as the vertices on the Iron Triangle. These links were significantly stronger than links to alternatives, such as Scope, Performance, or Requirements. Other concepts that are core to the Iron Triangle were also identified, and how these have changed over time.

This research develops the understanding of a key project management concept by clarifying which concepts are part of the Iron Triangle, based on evidence of how the concept is used in research. This paper also reveals the context in which this concept is used, and how this has changed over the last 45 years.

This paper aims to explore how new product development (NPD)-based project management offices (PMOs) work, their drivers to deliver performance and their project success impact.

The study used a survey of 35 Brazilian and multi-national companies that identified the effort to perform a list of PMO functions, some PMO drivers in the company and five project performance perception indicators. The authors apply a specific set of statistics to uncover the relations between these dimensions of interest.

The factorial analysis allows us to find the main functions influencing each other. The project teams’ perception of project management (PM) performance is suggested as a success factor that drives PMOs when working on portfolio management issues, managing project files and promoting PM over the company.

This paper contributes to a contingency approach for designing a project machine involving PMOs to support NPD projects. Managers can set the most suitable PMO functions avoiding mimicry when structuring their NPD efforts.

PMOs have impacted team satisfaction and control of project data but not indicators related to triple constraints.