Development of simulation-based production execution system in a shipyard: a case study for a panel block assembly shop

The management of a panel block shop in a shipyard is a complex process that entails the largest amount of work and in which many decisions are involved. Shipbuilders have considered the process as a bottleneck since every panel for every ship must be processed through the shop. The objective of this research is to carry out a materials flow analysis to maximise process productivity and to place simulation optimisation technology in the hands of decision makers, such as production planners and supervisors. In this article, a production execution planning system is proposed for panel block operations utilising discrete-event simulation and simulated annealing. The simulation model was validated using a real production scenario and the comparison showed a very favourable agreement between the actual panel shop and the simulation model. The proposed system supports production planners by general dispatching rules and optimisation to make better scheduling decisions on the shop floor. The system will provide a complete schedule that is at least as clear and accurate as any schedule currently obtained.     

Reverse logistics drivers: empirical evidence from a case study in an emerging economy

Academic and corporate interest in reverse logistics (RL) has risen considerably in recent years. In this context, the objective of this study was to identify the drivers that enable RL practice in an emerging economy. Firstly, international peer-reviewed publications on RL were used to develop a RL environment framework representing the main RL internal and external influences. Secondly, a case-based research was conducted in a large manufacturing company located in Southern Brazil. The results indicated that the most cited driver in the RL literature, the government and legislation, was not a main influence on the studied company. Environmental legislation is still limited in the country and struggles to provide incentives to increase materials recycling. An economic factor related to materials value recovery was also found to drive the backward flow. Finally, knowledge of the RL driving forces may support industries to better implement and manage reverse flows and to bridge the gap between existing and future solutions for reverse supply chains.     

Removing the impact of environment with units-invariant efficient frontier analysis: An illustrative case study with intertemporal panel data

The four-stage methodology consists of a units-invariant efficient frontier analysis followed by Tobit regression, adjustment of data, and a repeat of the efficient frontier analysis. The outlined methodology is an improvement over existing similar approaches because the playing field can be levelled by adjusting data based on input as well as output slacks for managers who may have been advantaged or disadvantaged by their environments. The accompanying case study investigates the influence of the general level of interest rates on bank efficiency using intertemporal panel data spanning 8 years and two countries. Key findings support the assertion that changes in interest rates can distort measurement of bank efficiency.     

Not in My Town: Conflicting Views on the Siting of a Hazardous Waste Incinerator

In recent years a large number of conflicts associated with environmental risks have arisen in Hungary. The case study described here is related to the siting of a hazardous waste incinerator in Dorog. First, the history of the siting procedure is outlined in terms of the multiparty, multiattribute decision framework. Subsequently, the case reveals how stakeholder groups can be identified in the structure of decision-making, how they think about the object causing the conflict, about the conflict itself, and the possibilities of resolving it. In investigating the conflict, a combination of analytical tools were applied. The multiple-perspective model of Linstone and the argumentation analysis of Toulmin provided the frame for analyzing the information collected by interviews in the affected town, Dorog, and two other towns affected to different degrees in environmental problems.     

A necessary dialogue: a South African case study exploring the role of national HRD in HIV/AIDS non-government organizations

This article makes the case for a coordinated and multi-faceted national level response to the HIV/AIDS crisis in South Africa from the field of human resource development (HRD), arguing that national policy debate on this issue must include the development of human resources in HIV/AIDS non-governmental organizations (NGOs). An exploration of potential connections between HIV/AIDS and HRD was conducted with a qualitative case study in Port Elizabeth, South Africa. Through this study, four major thematic categories emerged in connection to the work of NGOs involved in the management of HIV/AIDS, government policy, and the emerging theory and practice of national human resource development (NHRD). In addition, findings pointed to the need for HRD research to be conducted in HIV/AIDS related NGOs given their front-line roles in both policy and practice. Initial suggestions for dialogue between NGOs involved with managing HIV/AIDS and the HRD research and practice community are made along with recommendations for stronger linkages between NHRD and HIV/AIDs.     

Hassles, hardiness and absenteeism: Results of a 3-year longitudinal study

In this 3-year longitudinal study of 229 full-time employees, the authors investigated the association between hassles, two measures of personality hardiness, and absenteeism verified from medical personnel records and self-reported hospitalization owing to injury and illness. Using stepwise multiple regression analysis, hassles, but neither of the hardiness measures, significantly predicted absenteeism when controlling for psychological well-being and relevent demographic variables over the 3-year period. The alternative measure of hardiness, but not any of the original Kobasa personality hardiness scales, predicted self-reported hospitalization for injury and illness. Little evidence for the predicitve validity of the Kobasa personality hardiness components, or composite hardiness score, existed for either absenteeism or self-reported hospitalization in this study. These findings support the concept that the current conceptualization, measurement and use of the original Kobasa hardiness scales should be re-evaluated.     

Hassles,hardiness and absenteeism: Results of a 3-year longitudinal study

Abstract

In this 3-year longitudinal study of 229 full-time employees, the authors investigated the association between hassles, two measures of personality hardiness, and absenteeism verified from medical personnel records and self-reported hospitalization owing to injury and illness. Using stepwise multiple regression analysis, hassles, but neither of the hardiness measures, significantly predicted absenteeism when controlling for psychological well-being and relevent demographic variables over the 3-year period. The alternative measure of hardiness, but not any of the original Kobasa personality hardiness scales, predicted self-reported hospitalization for injury and illness. Little evidence for the predicitve validity of the Kobasa personality hardiness components, or composite hardiness score, existed for either absenteeism or self-reported hospitalization in this study. These findings support the concept that the current conceptualization, measurement and use of the original Kobasa hardiness scales should be re-evaluated.     

Development of sustainable platform for modular product family: a case study

Abstract

Defining product platform architecture is a critical issue to design and develop product variants. Different factors are highly dependent on the architecture type, such as number of variants, to measure modularity level, component commonality, market demand, etc. It is directly related to manage product portfolios and setting up business plan of a company. Before defining a product platform, whether it is modular or integral product designers need to follow specific design guidelines and checklists. This research mainly focuses on to define the platform architecture as well as provides necessary design guidelines and checklists for the product designers. It also highlights an example product of a case company with the objective to clarify/validate the proposed product design approach. In conclusion, this paper outlines the findings from this research and proposed some critical questions need to be answered within the scope of future research potentials.     

Importance of issues related to RFID-enabled healthcare transformation projects: results from a Delphi study

Despite the high operational and strategic potential of Radio frequency identification (RFID) technology in terms of increased healthcare efficiency and effectiveness, and better decision-making, its adoption and use within health care remain fairly low, mainly because of the challenging nature of RFID projects. Further, scholarly research has yet to identify key issues related to RFID projects. The present study intends to fill this knowledge gap in the literature by identifying and rating key issues related to RFID-enabled healthcare transformation projects through a panel of experts using four rounds of the Delphi study. Finally, implications for practice and research are discussed.     

Knowledge management in a community setting using action research: a case study of Lumpaya community,Nakorn Pathom Province,Thailand

This study promoted self-learning and participatory learning processes in the Lumpaya Community of Thailand to facilitate the development of local public policy to reduce the problem of poverty. The process used action research utilizing practice and learning from that practice. This research serves as an example of how a human resource development (HRD) intervention, knowledge management, can be applied in a context that extends beyond individual organizational boundaries to strengthen the community.     

From a spontaneous community of practice to a piloted community of practice: A longitudinal study of resilience construction

The article focuses on piloted communities of practice (PCoPs), which have evolved significantly in recent years in the knowledge-based economy. These social structures represent real difficulties in terms of management, particularly with regard to the possibility of reconciling two apparently contradictory logics, self-organization and control. Although recent empirical work in the literature provides a general picture of these PCoPs, they do not provide details of how this piloting is implemented over the long term. This paper uses a flexible pattern matching approach on a longitudinal case study to analyze the shift from a spontaneous community to a piloted community. The community studied here is the sound engineers of Radio France. The results highlight that piloting can only be relevant if it is presented as a reification process that makes sense to those involved. The study also emphasizes that self-organization and control can be harmonized through the creation of an ad hoc structure and that some PCoPs can be ambidextrous. In this study, we underline in which conditions the piloted community allows to maintain the resilience of an organization.     

The relationship between organisational change and being a perpetrator of workplace bullying: A three-wave longitudinal study

ABSTRACT

While research has unravelled the association between organisational change and being a target of workplace bullying, scholars have still to shed light on the perpetrator perspective of this association. In the current study, we further the literature by investigating the relationship between exposure to organisational change and being a perpetrator of workplace bullying. We introduced perceptions of psychological contract breach as a mechanism that accounts for the process in which exposure to organisational change leads employees to direct bullying behaviours to other members of the organisation. Using three-wave longitudinal data from 1994 employees we estimated a between-subjects mediation model controlling for autoregressive effects. Results confirmed our hypothesis that exposure to organisational change at Time 1 was positively related to being a perpetrator of workplace bullying at Time 3 through perceptions of psychological contract breach at Time 2. These findings suggest that organisations should invest in factors that lower employees’ likelihood to perceive psychological contract breach in the aftermath of organisational change because these perceptions may indeed result in the enactment of workplace bullying towards other members of the organisation.     

Leading Asian countries' HRD practices in the IT industry: a comparative study of South Korea and India

In order to examine the relationship between organizational change and organizational learning the authors conducted interviews with managers in 137 Estonian companies concerning changes implemented and learning outcomes. According to this survey, the relationship between organizational change and learning is seen differently in a country in transition.     

Measuring agri-food supply chain performance and risk through a new analytical framework: a case study of New Zealand dairy

Abstract

Many researchers and practitioners have long recognized the significance of measuring performance. Although general guidelines for measuring business performance are widely available, no appropriate measurement frameworks have been developed for measuring agri-food supply chain performance. Particularly, food quality and risk-related indicators have not been well integrated into existing performance measurement systems. Our research, therefore, addresses this knowledge gap by first providing an in-depth review of extant performance measurement systems and frameworks. It then develops an analytical framework by extending the Supply Chain Operations Reference (SCOR) model which has been extensively implemented across non-food industries. The analytical framework is further validated by utilizing a case study of 50 farmers and 10 dairy companies, operating in the New Zealand dairy industry.

Our pilot testing and subsequent findings show that the individual metrics interlocked with the analytical framework are in-line with the key industrial practices adapted by the New Zealand dairy industry. In addition, the framework is flexible and scalable to evaluate and benchmark other agri-food supply chains – ranging from fresh products such as fruits and vegetables to processed foods such as canned fruits. The findings further show that the detailed information required for measuring the level-3 SCOR metrics is not easily available in the industry, as researchers need to access specific company records that may be confidential. Consequently, this study provides how agri-food supply chain managers can employ our new analytical framework in-conjunction with the SCOR model for a deeper understanding of the complicated performance measurement indicators applied in their agri-food production systems and relevant supply chains.     

Enhancement of sigma level in the manufacturing of furnace nozzle through DMAIC approach of Six Sigma: a case study

In this paper, a case study on implementing Define, Measure, Analyze, Improve and Control (DMAIC) phases of Six Sigma programme in a furnace manufacturing company is reported. When Six Sigma was developed at Motorola, it was encapsulated with DMAIC and belt-based training infrastructure. Since belt-based training is expensive, companies with less revenue have been implementing only DMAIC phases. In this background, the impact of implementing DMAIC phases was examined in the research narrated in this paper through the reporting of the case study mentioned above. As the result of implementing DMAIC phases, the sigma level increased from 3.31 to 3.67 in the case of drilling a hole in a component called ‘furnace nozzle’. This increase in sigma level proved that DMAIC phases are powerful enough to enable the companies with less revenue to perform at six sigma level quality and acquire competitive strength.     

The contribution of the psychosocial work environment to sickness absence in human service workers: Results of a 3-year follow-up study

We investigated to what extent psychosocial work characteristics predict sickness absence in a cohort of 890 human service professionals (84% women), followed-up for 3 years. We measured 16 different psychosocial work characteristics at baseline and analysed their associations with number of sickness absence days at follow-up using multivariate Poisson regression. In addition, we computed a psychosocial work environment index, summarizing eight psychosocial scales. Participants with exposure to violence and threats, high emotional demands, high demands for hiding emotions, low influence at work, low meaning of work, low quality of management, and role conflicts had an increased number of sickness absence days at follow-up, after adjustment for numerous confounders. Adjusting for sickness absence history caused little change in most effect estimates. Scoring in the most adverse quartile of the psychosocial work environment index was associated with a 71% increase in sickness absence days. Improving the psychosocial work environment index and eliminating exposure to violence and threats would have prevented 32% of all sickness absence days in the study population. In particular we found that exposure to violence was a strong predictor of absence. This study shows that a wide range of psychosocial work characteristics contribute to sickness absence in human service workers. Improving the psychosocial work environment might help to reduce sickness absence in this population.     

The contribution of the psychosocial work environment to sickness absence in human service workers: Results of a 3-year follow-up study

Abstract

We investigated to what extent psychosocial work characteristics predict sickness absence in a cohort of 890 human service professionals (84% women), followed-up for 3 years. We measured 16 different psychosocial work characteristics at baseline and analysed their associations with number of sickness absence days at follow-up using multivariate Poisson regression. In addition, we computed a psychosocial work environment index, summarizing eight psychosocial scales. Participants with exposure to violence and threats, high emotional demands, high demands for hiding emotions, low influence at work, low meaning of work, low quality of management, and role conflicts had an increased number of sickness absence days at follow-up, after adjustment for numerous confounders. Adjusting for sickness absence history caused little change in most effect estimates. Scoring in the most adverse quartile of the psychosocial work environment index was associated with a 71% increase in sickness absence days. Improving the psychosocial work environment index and eliminating exposure to violence and threats would have prevented 32% of all sickness absence days in the study population. In particular we found that exposure to violence was a strong predictor of absence. This study shows that a wide range of psychosocial work characteristics contribute to sickness absence in human service workers. Improving the psychosocial work environment might help to reduce sickness absence in this population.