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The purpose of this paper is to explore opportunities and barriers to using lean construction to address issues related to the value, quality and scalability of affordable housing production in Latin America.

This paper presents a case study of a housing developer in Ecuador that used lean construction in the design and construction stages of an affordable housing project. The study describes how the developer addressed operational challenges derived from implementing a customization strategy and analyzes qualitative and quantitative data to assess the outcomes of lean initiatives.

The developer reduced cost and delivery time without sacrificing consumer choice. However, the economic and policy conditions worked against the benefits of lean construction, demonstrating the importance of the regulatory context in facilitating or inhibiting lean initiatives and construction innovation.

This paper focuses on conventional means for new housing construction. Self-help and upgrading are not covered.

The operational challenges described in this study, as well as the innovative ways to deal with them, are beneficial for practitioners seeking to improve the quality and efficiency of affordable housing construction.

This paper advances knowledge about how to increase value and quality delivery in the built environment which may benefit low-income families.

This study bridges construction innovation and housing policy, discussing the potential of lean construction within the policy and regulatory environment in which affordable housing takes place.

The purpose of this paper is to describe how resilience unfolded in a project-based organization with the support of organizational values through changing leadership styles. The rapidly announced restrictions on businesses during the coronavirus disease 2019 (COVID-19) provided an opportunity to observe and study resilience unfold.

The process-perspective case study approach of a structural and civil engineering design firm in San Francisco, California, USA, integrates interviews, observations, document analysis and information tracking via email and Microsoft Teams. The researchers adopted a leadership perspective, where the units of analysis are the internal management and the employees' behaviors.

In the case examined, the capability represented in the organizational values influenced the choice of situation-appropriate leadership styles to support employees. The values of relationship, passion and trust influenced the dominant choice of a transformational style, where stability and excellence facilitate a transactional style – all equally important for the balance and resilience of the project-based organization.

This study demonstrated that when organizational values support leaders in cultivating a learning environment, those values provide stability for leaders to promote resilience. To the best of the researchers' knowledge, no previous work described how situational-, transformational- and transactional-leadership styles evolve in response to a crisis and together facilitate organizational resilience.

This paper seeks to test the applicability of lean principles to simple construction processes using discrete‐event simulation.

Quantitative construction data and process mapping of plastering and block‐laying processes were first gathered and established from construction project through field observation and interviews with those involved in the selected projects. Then a simulation model was built to mimic the aforementioned processes to study the impact of certain lean principles. The simulation models became like an experimentation tool where lean principles (e.g. focus on actual objects and map the value stream) were introduced to evaluate their impact on such processes.

Lean principles are effective not only in complicated processes, as proved in previous studies, but also in simple processes. Enhancing the flow of construction materials means the less time they will spend in the value stream and as a result the leaner a process will be. In fact, simple processes are good candidate for lean improvements.

Simulating lean principles did not bring different construction processes to the leanest level of performance. There are other factors that govern each process. Rework, uncertainty, labor skills, site conditions and location are some examples of such factors that need further analyses for leaner construction processes.

Many studies focused on complicated processes to investigate the applicability of lean principles to construction. Results of these studies affirmed the great potentiality of such principles in improving construction processes. This study readdressed the issue of lean applicability to construction by focusing on simple processes, which are block‐laying and plastering.

The purpose of this paper is to show that project success is dependent on the project management approach selected, relative to the challenges posed by the project, and to develop an analytical model for analyzing the performance of the project organization.

The research is based on literature review, model development, interviews, and case studies.

The findings define two different approaches in project management: The prescriptive approach focusses on the formal qualities of the project organization, including governing documentation and procedures. The adaptive approach focusses on the process of developing and improving a project organization, project culture and team commitment. The two approaches have been identified through studies of three different case projects. An analytical model, referred to as the Pentagon model, has been applied for analyzing the performance of the project organization and explaining the project management approach. The model focusses on five different organizational aspects: structure, technologies, culture, social relations and networks, and interaction.

The research is limited to megaprojects and to project management success.

It is suggested that project teams consider and select their project management approach at project initiation, and accordingly decide on relevant success factors to focus on. The adapted Pentagon model can be applied to develop the project management organization and assess its performance in the course of project delivery.

The contribution of the research is the application of the analytical model, and the identification as well as illustration of the prescriptive, vs adaptive management approach.

The purpose of this paper is to study the effect of project management flexibility in early project phases on end-project performance including its mediating role on the effect of complexity over project performance.

Out of 13 hypotheses, 6 hypotheses regarding the relationships between areas of flexibility and project performance, 1 regarding the effect of complexity on performance and 6 other hypotheses regarding the mediating effect of six areas of flexibility were formulated. Statistical analysis was performed using partial least squares–structural equation modeling on data gathered from 111 surveys.

Research results revealed that flexibility of “how-attitude” and “how-organization” has positive significant effects on project performance. “How-attitude” contributes to the flexibility of project management processes by having an “open attitude,” “wide approach” and “proactive attitude” while “how-organization” put the emphasis of flexibility on “facilitate planning,” “outer organization” and “inner organization.” Moreover, this research confirmed that complexity has a negative effect on project performance. Among the six areas of flexibility, flexibility of “how-organization” mediates the effect of complexity on project performance.

The increased project complexity requires some degree of flexibility in project management to deal with project dynamics. However, whether such flexibility in early project phases has an effect on end-project performance has not been empirically investigated. This research contributes to filling the gap in literature about the relationship between project management flexibility and project performance. Such effect was investigated by studying the direct effect of flexibility on project performance and the mediating role of flexibility on the negative effect of project complexity on project performance.

Lean Six Sigma (LSS) implementation follows a structured approach called define-measure-analyze-improve-control (DMAIC). Earlier research about its application in emergency healthcare services shows that it requires organizational transformation, which many healthcare setups find difficult. The Kotter change management model facilitates organizational transformation but has not been attempted in LSS settings till now. This study aims to integrate the LSS framework with the Kotter change management model to come up with an integrated framework that will facilitate LSS deployment in emergency health services.

Two-stage Delphi method was conducted by using a literature review. First, the success factors and barriers of LSS are investigated, especially from an emergency healthcare point of view. The features and benefits of Kotter's change management models are then reviewed. Subsequently, they are integrated to form a framework specific to LSS deployment in an emergency healthcare set-up. The elements of this framework are analyzed using expert opinion ratings. A new framework for LSS deployment in emergency healthcare has been developed, which can prevent failures due to challenges faced by organizations in overcoming resistance to changes.

The eight steps of the Kotter model such as establishing a sense of urgency, forming a powerful guiding coalition, creating a vision, communicating the vision, empowering others to act on the vision, planning for and creating short-term wins, consolidating improvements and producing still more change, institutionalizing new approaches are derived from the eight common errors that managers make while implementing change in the institution. The study integrated LSS principles and Kotter’s change management model to apply in emergency care units in order to reduce waste and raise the level of service quality provided by healthcare companies.

The present study could contribute knowledge to the literature by providing a framework to integrate lean management and Kotter's change management model for the emergency care unit of the healthcare organization. This framework guides decision-makers and organizations as proper strategies are required for applying lean management practices in any system.

The proposed framework is unique and no other study has prescribed any integrated framework for LSS implementation in emergency healthcare that overcomes resistance to change.

Enterprise resource planning (ERP) systems that are equipped with numerous features and functionalities help to improve the profitability of construction corporations around the world through enhancing the efficiency of the functions related to cost management. Thus, the purpose of this study was to investigate the applicability of ERP systems for cost management of building construction projects in Sri Lanka.

A qualitative technique was used in this study, which comprised two-round Delphi-based semistructured interviews. Purposive sampling was used to determine the interviewees. Content analysis was used to evaluate the collected data.

The findings of this study identified the ERP system as a strategic tool for gaining a competitive advantage for an organization while confirming 14 uses of ERP systems and 16 stages of the cost management process. Eighteen issues were finalized at the end of the interview rounds while categorizing the suitable ERP applications at each stage of the cost management process.

Even though there are numerous distinct studies conducted on cost management and ERP systems, there has been a lack of studies conducted on the synergy between these two areas that can be adapted for the building projects in the Sri Lankan context. Therefore, the findings of this study can bring a new paradigm to the Sri Lankan construction sector by influencing the adaption of correct ERP systems at numerous project stages by providing a competitive edge.