Maintainability analysis in shaving blades industry: a case study

2017 ◽  
Vol 34 (4) ◽  
pp. 581-594 ◽  
Author(s):  
Panagiotis Tsarouhas ◽  
George Besseris
Keyword(s):  
Production System ◽  
High Tech ◽  
Data Sets ◽  
Total Quality ◽  
Total Productive Maintenance ◽  
Content Type ◽  
Fitness Index ◽  
Maintainability Analysis ◽  
Mean Time

Purpose The purpose of this paper is to provide results for a complete maintainability analysis utilizing data sets from a production system in a shaving blades division of a large high-tech razor manufacturer. Through the illustrated case study, the authors demonstrate how to spot improvement points for enhancing availability by carrying out an equipment effectiveness analysis. Design/methodology/approach Descriptive statistics of the repair data and the best fitness index parameters were computed. Repair data were collected from departmental logs, and a preliminary screening analysis was conducted to validate their usefulness for the indicated period of 11 months. Next, the maintainability and repair rate modes for all the machines of the production system were calculated. Maintainability and availability estimations for different time periods that took in account the overall system were obtained by trying out and selecting an optimum statistical model after considering of several popular distributions. Findings Out of the five considered machines in the system, two particular units received about half of the repairs (M2 and M3). The time to repair follows a loglogistic distribution and subsequently the mean time to repair is estimated at 25 minutes at the machine level. Repair time performance is approximated at 55 minutes if the availability of the system is to attain a 90 percent maintainability. Originality/value This study is anticipated to serve as an illuminating effort in conducting a complete maintainability analysis in the much advertised field of shavers, for which on the contrary so little has been published on operational availability and equipment effectiveness. The case study augments the available pool of sources where executing maintainability studies is highlighted usually under the direction of combined total quality management and total productive maintenance programs.

A Changeover Time Reduction through an integration of lean practices: a case study from pharmaceutical sector

2015 ◽  
Vol 35 (1) ◽  
pp. 22-34 ◽  
Author(s):  
M. Bevilacqua ◽  
F.E. Ciarapica ◽  
I. De Sanctis ◽  
G. Mazzuto ◽  
C. Paciarotti
Keyword(s):  
Standard Deviation ◽  
Pharmaceutical Company ◽  
Good Manufacturing Practice ◽  
Process Time ◽  
Pharmaceutical Sector ◽  
Total Productive Maintenance ◽  
Content Type ◽  
Lean Practices ◽  
Mean Time

Purpose – The purpose of this paper is to uncover the significance of quick changeovers in the packaging line of a pharmaceutical company. Using an integration of different lean practices, the study aims to reduce the batch change and changeover time up to 50 per cent, increasing overall equipment effectiveness by 25 per cent. Design/methodology/approach – The paper gives setup instructions and guidelines for preparing the standardized setup procedure without ignoring the actual constraints in a pharmaceutical company. It uses a case study to generate an integrated setup reduction approach, utilizing single-minute exchange of die tools (SMED) in combination with suppliers, inputs, process, outputs and customers (SIPOC), Kanban, 5S techniques and Total Productive Maintenance (TPM) indexes to achieve faster setups. Findings – The SMED approach helps the pharmaceutical company to eliminate unwanted activities and to externalize and reduce the internal activities by simplification or standardization. The application of other tools, such as 5S and Kanban tool-kits, allowed the company to optimize the process and reduce the standard deviation of the changeover times. Good manufacturing practice (GMP) procedures of the pharmaceutical sector limit the conversion of internal setup elements to external setup elements. Originality/value – The paper demonstrates the practical application of SMED, showing how it can bring real breakthroughs in productivity to a pharmaceutical company. Moreover, in this work, we highlight the importance of an integration of different lean practices to reduce variation in the changeover time. In particular, the standardization of setup tasks and the increased reliability in the material supply chain, in addition to reducing the changeover mean time can also reduce the standard deviation of the setup process time.

Towards a taxonomy of intergenerational knowledge transfer practices

2018 ◽  
Vol 25 (2) ◽  
pp. 81-91
Author(s):  
Kerstin Kuyken ◽  
Mehran Ebrahimi ◽  
Anne-Laure Saives
Keyword(s):  
Knowledge Transfer ◽  
Comparative Study ◽  
Design Methodology ◽  
Qualitative Case Study ◽  
High Tech ◽  
Content Type ◽  
Case Study Design ◽  
Younger Workers ◽  
Intergenerational Knowledge

Purpose This paper aims to develop a better understanding of intergenerational knowledge transfer (IKT) practices by adopting a context-related and comparative perspective. Design/methodology/approach A qualitative case study design involving 83 interviews and non-participative observation in German and Quebec organizations has been chosen. Findings Two distinctive archetypes of IKT emerge from both national contexts: “we-individualizing” (Germany) and “I-connecting” (Quebec), leading to an eightfold taxonomy of IKT practices. Research limitations/implications This research is limited to young and senior workers and to high-tech sectors. Originality/value Comparative and inductive study of IKT, adaptation of IKT practices to national contexts, retaining younger workers. This inductive and comparative study allows a better adaptation of IKT practices to national contexts and therefore a better retention of younger workers.

Lenovo’s successful acquisition of the IBM PC Division

2016 ◽  
Vol 32 (9) ◽  
pp. 32-35
Author(s):  
Mark Thomas
Keyword(s):  
Design Methodology ◽  
Chinese Economy ◽  
High Tech ◽  
Tablet Computers ◽  
Content Type ◽  
Us Economy ◽  
The Us ◽  
Pertinent Information ◽  
Traditional Manufacturing

Purpose The purpose of this paper is to analyze Lenovo’s successful acquisition of IBM’s PC division using Ghemawat’s (2001) CAGE framework. It was an acquisition that was so full of symbols that it is difficult to know where to begin. Lenovo’s purchase of IBM in 2005 was first seen as a sign of the rapid growth and expansion of the Chinese economy and its transformation away from the traditional manufacturing base to more high-tech areas. For doomsday merchants in the land of Uncle Sam, it foretold the end of the world domination of the US economy. Despite a considerable number of skeptics at the time, Lenovo was clearly up to the task. Such was the success of the acquisition that by 2015, Lenovo could claim to have grown into the world’s number 1 PC maker, number 3 smartphone manufacturer and number 3 in the production of tablet computers. Design/methodology/approach This paper is a case study. Findings Despite a considerable number of skeptics at the time, Lenovo was clearly up to the task. Such was the success of the acquisition that by 2015, Lenovo could claim to have grown into the world’s number 1 PC maker, number 3 smartphone manufacturer and number 3 in the production of tablet computers. Indeed, by 2014, the firm had enough confidence to add the IBM server business to its portfolio. Originality/value The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

AI and privacy concerns: a smart meter case study

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jillian Carmody ◽  
Samir Shringarpure ◽  
Gerhard Van de Venter
Keyword(s):  
Private Information ◽  
Personal Information ◽  
Consumer Information ◽  
Data Sets ◽  
Smart Meter ◽  
Smart Meters ◽  
Content Type ◽  
Privacy Concerns ◽  
Privacy Legislation

Purpose The purpose of this paper is to demonstrate privacy concerns arising from the rapidly increasing advancements and use of artificial intelligence (AI) technology and the challenges of existing privacy regimes to ensure the on-going protection of an individual’s sensitive private information. The authors illustrate this through a case study of energy smart meters and suggest a novel combination of four solutions to strengthen privacy protection. Design/methodology/approach The authors illustrate how, through smart meter obtained energy data, home energy providers can use AI to reveal private consumer information such as households’ electrical appliances, their time and frequency of usage, including number and model of appliance. The authors show how this data can further be combined with other data to infer sensitive personal information such as lifestyle and household income due to advances in AI technologies. Findings The authors highlight data protection and privacy concerns which are not immediately obvious to consumers due to the capabilities of advanced AI technology and its ability to extract sensitive personal information when applied to large overlapping granular data sets. Social implications The authors question the adequacy of existing privacy legislation to protect sensitive inferred consumer data from AI-driven technology. To address this, the authors suggest alternative solutions. Originality/value The original value of this paper is that it illustrates new privacy issues brought about by advances in AI, failings in current privacy legislation and implementation and opens the dialog between stakeholders to protect vulnerable consumers.

Integrated reliability and maintainability analysis of Computerized Numerical Control Turning Center considering the effects of human and organizational factors

2019 ◽  
Vol 26 (1) ◽  
pp. 87-103
Author(s):  
Rajkumar Bhimgonda Patil
Keyword(s):  
Organizational Factors ◽  
Numerical Control ◽  
Content Type ◽  
Failure Data ◽  
Turning Center ◽  
Maintainability Analysis ◽  
Human And Organizational Factors ◽  
Mean Time ◽  
Best Fit ◽  
Field Failure

Purpose Reliability, maintainability and availability of modern complex engineered systems are significantly affected by four basic systems or elements: hardware, software, organizational and human. Computerized Numerical Control Turning Center (CNCTC) is one of the complex machine tools used in manufacturing industries. Several research studies have shown that the reliability and maintainability is greatly influenced by human and organizational factors (HOFs). The purpose of this paper is to identify critical HOFs and their effects on the reliability and maintainability of the CNCTC. Design/methodology/approach In this paper, 12 human performance influencing factors (PIFs) and 10 organizational factors (OFs) which affect the reliability and maintainability of the CNCTC are identified and prioritized according to their criticality. The opinions of experts in the fields are used for prioritizing, whereas the field failure and repair data are used for reliability and maintainability modeling. Findings Experience, training, and behavior are the three most critical human PIFs, and safety culture, problem solving resources, corrective action program and training program are the four most critical OFs which significantly affect the reliability and maintainability of the CNCTC. The reliability and maintainability analysis reveals that the Weibull is the best-fit distribution for time-between-failure data, whereas log-normal is the best-fit distribution for Time-To-Repair data. The failure rate of the CNCTC is nearly constant. Nearly 66 percent of the total failures and repairs are typically due to the hardware system. The percentage of failures and repairs influenced by HOFs is nearly only 16 percent; however, the failure and repair impact of HOFs is significant. The HOFs can increase the mean-time-to-repair and mean-time-between-failure of the CNCTC by nearly 65 and 33 percent, respectively. Originality/value The paper uses the field failure data and expert opinions for the analysis. The critical sub-systems of the CNCTC are identified using the judgment of the experts, and the trend of the results is verified with published results.

Successful approaches for implementing additive manufacturing

2020 ◽  
Vol 16 (2) ◽  
pp. 131-148
Author(s):  
Robert Martens ◽  
Susan K. Fan ◽  
Rocky J. Dwyer
Keyword(s):  
Additive Manufacturing ◽  
The Netherlands ◽  
Business Models ◽  
Multiple Case Study ◽  
High Tech ◽  
Manufacturing Companies ◽  
Content Type ◽  
Multiple Case ◽  
Qualitative Multiple Case Study

PurposeThe purpose of this qualitative, multiple-case study was to explore the successful strategies that managers of light and high-tech small and medium-sized manufacturing companies in the Netherlands, use to adopt additive manufacturing (AM) technology into their business models.Design/methodology/approachA qualitative, multiple-case study approach was used. The participants for this study consisted of executive-level managers of light and high-tech manufacturing companies in the Netherlands. Company documents were studied, and individual interviews were undertaken with participants to gain an understanding of the strategies they used to adopt AM technology into their business models.FindingsThree significant themes emerged from the data analysis: identify business opportunities for AM technology, experiment with AM technology and embed AM technology.Research limitations/implicationsThe findings of this study could be of advantage to industry leaders and manufacturing managers who are contemplating to adopt AM in their business models.Originality/valueThis study may contribute to the further proliferation of AM technology. Industry leaders may also gain a clearer understanding of the effects of 3DP on local employment. The results of the study may also work as a catalyst for increased awareness for manufacturing firm leaders who have not yet considered the opportunities and threats AM technology presents to their organizations.

Project risk planning in high-tech new product development

2016 ◽  
Vol 29 (2) ◽  
pp. 110-124 ◽  
Author(s):  
Jorge Ayala-Cruz
Keyword(s):  
Risk Management ◽  
New Product Development ◽  
New Product ◽  
High Tech ◽  
Project Risk ◽  
Content Type ◽  
Management Framework ◽  
Risk Management Framework ◽  
Project Risks

Purpose The purpose of this paper is to present the implementation and testing of a modified project risk management framework that integrates PMI’s framework with Monte Carlo simulation to improve the effectiveness in high-tech new product development (NPD) projects. Design/methodology/approach The modified framework considers three bodies of knowledge: project management, risk management, and Monte Carlo simulation to produce an enhance project risk management framework. Its application is shown through a case study. Findings Using the integrated framework in a recent case study project and prior NPD projects measures (as benchmarks), it was shown that it could help to enhance risk responses caused by task durations and costs’ uncertainties. The framework proved to be better than segregated generic best practices and was key in providing insight to the issue of early project risk assessment. Research limitations/implications More experimental replications are required for enhancement effectiveness assertions of the framework, through the application of the framework to similar case studies. Furthermore, this could improve its reliability and soundness. Practical implications Future directions for research could include case and empirical studies that include hypothesis’s testing, and the integration of optimization procedure for improved NPD project’s planning and execution. Originality/value This paper outlines a way to close the gap of project risks management planning in NPD’s initiatives. It was motivated by a relatively new tendency in exploring integrated frameworks to deal with complex project risks issues.

The rise and decline of TQM in the NHS

2014 ◽  
Vol 26 (5) ◽  
pp. 499-509 ◽  
Author(s):  
Uche Nwabueze
Keyword(s):  
Quality Management ◽  
Sample Size ◽  
Practical Implication ◽  
Real Life ◽  
Leadership Role ◽  
Future Research ◽  
Rapid Decline ◽  
Total Quality ◽  
Content Type

Purpose – The purpose of this paper is to delineate the factors responsible for the decline of total quality management (TQM) in the National Health Service (NHS). It is suggested that if these factors were initially identified and eliminated prior to implementation, the decline of TQM as a strategy for improving the provision and delivery of quality patient care could have been prevented. Design/methodology/approach – The case study approach was chosen because it is the preferred method when “how” or “what” questions are being posed. It is applicable as is evident in this paper where the researcher has little control over events and when the focus is on a contemporary phenomenon within some real-life context. The case study enables the researcher to give an accurate rendition of actual events; it contributes uniquely to the knowledge of individual, organisational, social, and political phenomena. The semi-structured face-to-face interview constituted the main data collection technique of the research. Interviews were held with 23 quality management managers in the British NHS. The central focus of the interview was on “what” factors contributed to the rapid decline of TQM in the NHS. The respondents were chosen because they were directly involved with the implementation of TQM. They were in the vintage position to offer a full insight into the TQM initiative. The analysis of the case is based on Yin's analytic technique of explanation building. Findings – The decline of TQM in the NHS could have been prevented if top executives in hospitals had adopted the sequential steps to quality improvement: In the authors opinion, to land a man on the moon needed a belief in the possibility and breakthrough in the attitudes that viewed space travel as pure science fiction as opposed to a practical reality, and so it should have been with TQM in the NHS. However, the attitude of many NHS managers was that TQM was all right for “other institutions” because “they need it” whereas in the NHS, “we don’t”. This negative attitude should have been overcome if TQM was to be accepted as a corporate, all encompassing philosophy. Research limitations/implications – The limitation of the research may be the sample size of the respondents, which was limited to 23 quality managers that had hands-on experience and the leadership role to lead and implement TQM in the NHS. Future research may consider a broader sample size. It may also be considered for new research to use surveys to identify a broader set of reasons why TQM declined in the NHS. Practical implications – This paper is the first constructive insight to determine reasons for the decline of TQM in the NHS from the individuals who had the sole responsibility for implementation. Any other, group would have amounted to hearsay. Therefore, to constructively delineate the reasons for failure, it was pertinent to learn from the quality managers directly and to ensure that the reasons was representative of their experiences with TQM. The practical implication is to prepare future managers about how to avoid failure. Originality/value – The paper clearly suggests the systematic process required for effective implementation of TQM in a healthcare setting by identifying factors that must be avoided to ensure the successful and sustainable implementation of TQM.

scholarly journals Multiple stakeholders and B2B branding in emerging markets

2016 ◽  
Vol 19 (3) ◽  
pp. 287-309 ◽  
Author(s):  
Veronika Tarnovskaya ◽  
Galina Biedenbach
Keyword(s):  
Emerging Markets ◽  
Brand Value ◽  
High Tech ◽  
Multiple Stakeholders ◽  
Content Type ◽  
Corporate Managers ◽  
Local Stakeholders ◽  
Brand Strategies ◽  
B2b Branding

Purpose The main purpose of this study is to investigate perceptions about and contributing activities to business-to-business (B2B) brand value by corporate managers and local stakeholders in the context of emerging markets. Design/methodology/approach The case study examines brand strategies of a multinational company in the high-tech industry. By using NVIVO, this research analyses the brand narratives by corporate managers of Axis Communications in Sweden and local stakeholders in Russia, Brazil and India. The study evaluates perceptions about brand value and contributing activities emphasized by corporate managers, local managers, local partners and local end-customers. Findings The findings demonstrate that corporate managers underutilize contributing activities by local managers and other local stakeholders, despite these activities being central to enhancing brand value. This research provides insights into how corporate and local managers can develop successful brand strategies in emerging markets. Consequently, a general typology of contributing activities to B2B brand value by local stakeholders is proposed. Originality/value The company-centred approach to B2B branding stresses the importance of unique components of brand value and their consistent communication to multiple stakeholders. Prior studies provide limited evidence on how various stakeholders perceive brand value and enhance it through their contributing activities. Following the stakeholder-encompassing approach, this study advances branding research by examining perceptions about and contributing activities to B2B brand value by corporate managers and local stakeholders in a cross-cultural setting. Future studies are recommended to apply a stakeholder-encompassing approach in developed and transition economies and considering other relevant groups of stakeholders.

scholarly journals Forensic triage of email network narratives through visualisation

2014 ◽  
Vol 22 (4) ◽  
pp. 358-370 ◽  
Author(s):  
John Haggerty ◽  
Sheryllynne Haggerty ◽  
Mark Taylor
Keyword(s):  
Qualitative Data ◽  
Data Sets ◽  
Content Type ◽  
Electronic Evidence ◽  
Relevant Evidence ◽  
Novel Approach ◽  
Potential Sources ◽  
Digital Investigation ◽  
Tools And Techniques

Purpose – The purpose of this paper is to propose a novel approach that automates the visualisation of both quantitative data (the network) and qualitative data (the content) within emails to aid the triage of evidence during a forensics investigation. Email remains a key source of evidence during a digital investigation, and a forensics examiner may be required to triage and analyse large email data sets for evidence. Current practice utilises tools and techniques that require a manual trawl through such data, which is a time-consuming process. Design/methodology/approach – This paper applies the methodology to the Enron email corpus, and in particular one key suspect, to demonstrate the applicability of the approach. Resulting visualisations of network narratives are discussed to show how network narratives may be used to triage large evidence data sets. Findings – Using the network narrative approach enables a forensics examiner to quickly identify relevant evidence within large email data sets. Within the case study presented in this paper, the results identify key witnesses, other actors of interest to the investigation and potential sources of further evidence. Practical implications – The implications are for digital forensics examiners or for security investigations that involve email data. The approach posited in this paper demonstrates the triage and visualisation of email network narratives to aid an investigation and identify potential sources of electronic evidence. Originality/value – There are a number of network visualisation applications in use. However, none of these enable the combined visualisation of quantitative and qualitative data to provide a view of what the actors are discussing and how this shapes the network in email data sets.

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