Search results

1 – 10 of over 31000
Article
Publication date: 6 September 2022

Utku Kale, Omar Alharasees, Jozsef Rohacs and Daniel Rohacs

The purpose of this paper is to investigate and evaluate the subjective decision-making of pilots during final approach with varying degrees of experience for landing and…

Abstract

Purpose

The purpose of this paper is to investigate and evaluate the subjective decision-making of pilots during final approach with varying degrees of experience for landing and go-around.

Design/methodology/approach

In this research, the “Lorenz Attractor” was modified and used to model the subjective decision-making of pilots during the final approach. For landing and go-around situations, “hesitation frequency” and “decision-making time” were calculated for the subjective decision-making of pilots.

Findings

In this research, the modified Chaotic Lorenz Model was used on MATLAB with varying degrees of experience, namely, student pilots, less-skilled pilots, experienced pilots and well-experienced pilots. Based on the outcomes, the less-skilled pilot needs nearly four times more decision-making time on landing or go-around compared to the well-experienced pilot during the final approach.

Practical implications

Operators (pilots, air traffic controllers) need to make critical and timely decisions in a highly complex work environment, which is influenced by several external elements such as experience level and human factors. According to NASA, 80% of aviation accidents occur due to human errors specifically over the course of the aviation decision-making process in dynamic circumstances. Due to the consequences of this research the operators' training should be redesigned by assisting flight instructors on the weaknesses of pilots.

Originality/value

This research explores the endogenous dynamics of the pilot decision-making process by applying a novel “Chaotic Lorenz Model” on MATLAB. In addition, the operator's total decision time formula was improved by including the decision reviewing time and external factors. Moreover, subjective decision-making model created by the current authors and Wicken's information model were modified to the highly automated systems.

Details

Aircraft Engineering and Aerospace Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 16 March 2021

Abdul Wahab and Jun Wang

Quantity Takeoff (QTO) is an integral part of the decision-making process. Currently, QTO is mostly done using manual or 2D method, and practitioners are considering the…

Abstract

Purpose

Quantity Takeoff (QTO) is an integral part of the decision-making process. Currently, QTO is mostly done using manual or 2D method, and practitioners are considering the use of BIM quantity takeoff as an effective alternative to the traditional 2D software takeoff. However, the existing literature does not have adequate studies to confirm that the use of BIM-based QTO is better than the 2D method. Therefore, this paper aims to expand and improve the existing literature into a more detailed analysis of each element to investigate that BIM is indeed a better option of the two QTO methods.

Design/methodology/approach

A total of 19 factors in four broad categories, i.e. timely decision making, accuracy, collaboration, and level of details were identified to draw a significant comparison between the two procedures, i.e. BIM-based quantity takeoff and traditional 2D takeoff. Surveys and case study are used to collect data for analysis to achieve the research goals.

Findings

The questionnaire survey showed that using BIM for the QTO process has significant benefits in achieving higher productivity on takeoff, accuracy, clarity and collaboration among the team members. The case study results also showed improvement in BIM-based QTO by achieving higher accuracy and productivity.

Originality/value

Understanding the difference between the two QTO processes is a challenging task; therefore, this paper contributes to drawing a comparison line between the two processes by introducing the factors that affect the QTO process.

Details

Engineering, Construction and Architectural Management, vol. 29 no. 2
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 5 June 2017

Damian Eisenghower Greaves

The purpose of this paper is to explore and assess barriers and opportunities for evidence-based management (EBMgt) and decision-making in healthcare systems of the small…

Abstract

Purpose

The purpose of this paper is to explore and assess barriers and opportunities for evidence-based management (EBMgt) and decision-making in healthcare systems of the small island developing states (SIDSs) of English-speaking Caribbean.

Design/methodology/approach

The study utilized grounded theory to collect and analyze data on experiences and perceptions of 20 senior managers/leaders from seven Ministries of health in the region. It used semi-structured, in-depth interviews comprising open-ended questions. Data analysis comprised open, focused and theoretical coding.

Findings

EBMgt and decision-making is not a prominent approach taken by top officials of health systems because of internal and external barriers to its use. Indeed the absence of a culture of decision-making based on evidence pervades the public services of Caribbean island states. Notwithstanding, there are opportunities for meaningful application of this management/leadership strategy.

Originality/value

To the author’s knowledge, this is the first assessment of the application of EBMgt to health systems of SIDSs of the Caribbean. This paper is concerned with the approach to decision-making in health systems across island states and lends support to the use of evidence in decision-making and policy development. It provides useful direction for policy makers, and senior managers/leaders of these systems.

Details

International Journal of Health Governance, vol. 22 no. 2
Type: Research Article
ISSN: 2059-4631

Keywords

Article
Publication date: 4 April 2016

Cécile L'Hermitte, Peter Tatham, Marcus Bowles and Ben Brooks

The purpose of this paper is to explore the underlying strategic mechanisms of agility in a humanitarian logistics context. Based on the research conducted in business…

1634

Abstract

Purpose

The purpose of this paper is to explore the underlying strategic mechanisms of agility in a humanitarian logistics context. Based on the research conducted in business disciplines, the paper empirically examines a set of four strategic dimensions (being purposeful, being action-focused, being collaborative, and being learning-oriented) and identifies an emergent relationship between these capabilities and agile humanitarian logistics operations.

Design/methodology/approach

Leadership and management actions perceived to support the four capabilities were identified and used as a basis to complete the exploratory research. Specifically, a case study with the United Nations World Food Programme (WFP) was undertaken and, in this context, a qualitative analysis of 29 face-to-face interviews with humanitarian logistics experts working for WFP was conducted.

Findings

The research corroborates the relevance of the four strategic-level capabilities to the humanitarian logistics context and confirms that these capabilities play a role in the development of agility in humanitarian operations. The work also identifies a set of key strategic decision-making areas that relate to the building of agility.

Research limitations/implications

Additional research is needed to further investigate and measure the strategic-level capabilities and to quantify their impact on operational agility. Further research should also be undertaken to extend this study to a wider range of humanitarian organisations.

Originality/value

This paper is the first empirical research that takes a strategic approach to the concept of agility in humanitarian logistics. It highlights that the leaders and managers of humanitarian organisations have a significant role to play in the building of an agile system.

Details

Journal of Humanitarian Logistics and Supply Chain Management, vol. 6 no. 1
Type: Research Article
ISSN: 2042-6747

Keywords

Article
Publication date: 3 October 2016

Sean D. Darling and J. Barton Cunningham

The purpose of this paper is to identify unique values and competencies linked to private and public sector environments.

Abstract

Purpose

The purpose of this paper is to identify unique values and competencies linked to private and public sector environments.

Design/methodology/approach

This study is based on critical incident interviews with a sample of senior leaders who had experience in both the public and private sectors.

Findings

The findings illustrate distinct public and private sector relevant competencies that reflect the unique values of their organizations and the character of the organization’s environments. This paper suggests a range of distinct public sector competencies including: managing competing interests, managing the political environment, communicating in a political environment, interpersonal motivational skills, adding value for clients, and impact assessment in decision-making. These were very different than those identified as critical for the private sector environment: business acumen, visionary leadership, marketing communication, market acumen, interpersonal communication, client service, and timely and opportunistic decision-making. Private sector competencies reflect private sector environments where goals need to be specifically defined and implemented in a timely manner related to making a profit and surviving in a competitive environment. Public sector competencies are driven by environments exhibiting more complex and unresolvable problems and the need to respond to conflicting publics and serving the public good while surviving in a political environment.

Originality/value

A key message of this study is that competency frameworks need to be connected to the organization’s unique environments and the values that managers are seeking to achieve. This is particularly important for public organizations that have more complex and changing environments.

Details

Asian Education and Development Studies, vol. 5 no. 4
Type: Research Article
ISSN: 2046-3162

Keywords

Article
Publication date: 2 February 2010

Richard G. Maynard

The purpose of this paper is to motivate individuals to use social networking and information tools to address complex personal issues.

363

Abstract

Purpose

The purpose of this paper is to motivate individuals to use social networking and information tools to address complex personal issues.

Design/methodology/approach

This is a discussion paper based on the author's research.

Findings

Social networking combined with information tools can greatly enhance an individual's research success and facilitate personal decision making.

Originality/value

The social, economic, and technological challenges of our time occur when the maturity of computing, the internet, and social networking provide new options for research and problem solving. This is a time of opportunity for individuals and the organizations that provide social networking services.

Details

On the Horizon, vol. 18 no. 1
Type: Research Article
ISSN: 1074-8121

Keywords

Article
Publication date: 3 June 2021

Olivera Marjanovic

This paper focuses on the “how” of business analytics (BA) value creation, which remains an open research problem and a practical challenge. The main purpose of this paper…

Abstract

Purpose

This paper focuses on the “how” of business analytics (BA) value creation, which remains an open research problem and a practical challenge. The main purpose of this paper is to propose a novel BA value creation mechanism that is BA-enabled improvement of Knowledge-intensive Business Processes (KIBPs), with experiential knowledge of decision makers as the key to a more sustainable BA-enabled competitive differentiation.

Design/methodology/approach

This research uses a qualitative research case study, conducted in a large retail distribution company. The research insights were observed through a combined lens of work systems theory and the knowledge-based view (KBV) of the firm, using an interpretive approach.

Findings

The proposed theoretical model identifies three stages of KIBP improvement through BA and explains how they lead to a sustainable BA-enabled competitive differentiation. Stage 1 focusses on BA support for individual knowledge-intensive tasks, Stage 2 focusses on individual decision makers and their ability to gain KIBP-related analytical insights and turn them into action; and Stage 3 on sharing of the acquired experiential knowledge amongst decision makers using BA.

Originality/value

In addition to proposing a novel mechanism for BA value creation, this research demonstrates the importance of leveraging experiential knowledge of decision makers as a pathway to a more sustainable competitive differentiation through BA. This, in turn, creates new opportunities for knowledge management researchers to engage in BA-related research. It also opens a new approach for BA researchers to investigate BA value creation mechanisms through the lens of KBV, rather than more common resource-based or capability-based views.

Article
Publication date: 1 August 1997

Rick L. Edgeman and Dennis K.J. Lin

Acceptance sampling can be both time‐consuming and destructive so that it is desirable to arrive at a sound lot disposition decision in a timely manner. Sequential…

399

Abstract

Acceptance sampling can be both time‐consuming and destructive so that it is desirable to arrive at a sound lot disposition decision in a timely manner. Sequential sampling plans are attractive since they offer a lower average sample number than do matched single, double, or multiple sampling plans. Analogously, cumulative sum control charts offer the ability to detect moderate process shifts more rapidly than do Shewhart control charts applied to the same process. The inverse Gaussian distribution is flexible and is often the model of choice in accelerated life testing applications where early failure times predominate. Based on sequential probability ratio tests (SPRT), sequential sampling/ cumulative sum (CUSUM) plans provide timely, statistically based decisions. Presents SPRT and CUSUM results for the inverse Gaussian process mean. Also presents a simple goodness‐of‐fit test for the inverse Gaussian distribution which allows for model adequacy checking.

Details

International Journal of Quality & Reliability Management, vol. 14 no. 6
Type: Research Article
ISSN: 0265-671X

Keywords

Article
Publication date: 7 October 2019

Emmanuel Sawyerr and Christian Harrison

The purpose of this study is to identify the prescribed formative elements of supply chain resilience (SCR) in literature, to compare them with the unique characteristics…

2382

Abstract

Purpose

The purpose of this study is to identify the prescribed formative elements of supply chain resilience (SCR) in literature, to compare them with the unique characteristics of high reliability organisations (HROs) and derive lessons useful for improving SCR.

Design/methodology/approach

Two systematic literature reviews are carried out as follows: one on SCR and the other on HRO, which identified 107 studies and 18 papers, respectively. The results from the review are presented, analysed and synthesised.

Findings

Findings suggest that despite significant similarities in some of the proposed formative elements for SCR and the characteristics of HROs, the strong managerial commitment exhibited in HROs is absent in SCR literature. More importantly, the most cited characteristic of HROs, which is their flexible decision making structure is pointed out as a prima lesson towards developing resilience in supply chains.

Practical implications

A decision making framework to facilitate flexible decision making for supply chains during crisis is presented. Further, practical lessons are pointed out from principles common to both streams of literature such as redundancy, human resource management, collaboration, agility, flexibility, culture and risk avoidance that can be implemented in supply chains.

Originality/value

This paper is the first study to systematically review HROs, adapt a HRO decision making framework and also apply the Cynefin framework to SCR. This, therefore, provides the basis to launch further research into the use of these theories and the role of decision-making in SCR creation.

Details

Supply Chain Management: An International Journal, vol. 25 no. 1
Type: Research Article
ISSN: 1359-8546

Keywords

Article
Publication date: 26 July 2021

Alina Stundziene, Vaida Pilinkienė and Andrius Grybauskas

This paper aims to identify the external factors that have the greatest impact on housing prices in Lithuania.

Abstract

Purpose

This paper aims to identify the external factors that have the greatest impact on housing prices in Lithuania.

Design/methodology/approach

The econometric analysis includes stationarity test, Granger causality test, correlation analysis, linear and non-linear regression modes, threshold regression and autoregressive distributed lag models. The analysis is performed based on 137 external factors that can be grouped into macroeconomic, business, financial, real estate market, labour market indicators and expectations.

Findings

The research reveals that housing price largely depends on macroeconomic indicators such as gross domestic product growth and consumer spending. Cash and deposits of households are the most important indicators from the group of financial indicators. The impact of financial, business and labour market indicators on housing price varies depending on the stage of the economic cycle.

Practical implications

Real estate market experts and policymakers can monitor the changes in external factors that have been identified as key indicators of housing prices. Based on that, they can prepare for the changes in the real estate market better and take the necessary decisions in a timely manner, if necessary.

Originality/value

This study considerably adds to the existing literature by providing a better understanding of external factors that affect the housing price in Lithuania and let predict the changes in the real estate market. It is beneficial for policymakers as it lets them choose reasonable decisions aiming to stabilize the real estate market.

Details

International Journal of Housing Markets and Analysis, vol. 15 no. 4
Type: Research Article
ISSN: 1753-8270

Keywords

1 – 10 of over 31000