A theoretical and statistical approach of Six Sigma differentiation from other quality systems

Ismyrlis, Vasileios; Moschidis, Odysseas

doi:10.1108/ijlss-07-2016-0037

Cited by 7 publications

(5 citation statements)

References 77 publications

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“…Some researchers analyzed also the environmental (green) impact of using quality and operations improvement methods such as lean, SS and lean SS (Chugani et al , 2017); particularly, Garza-Reyes (2015) explored the real necessity of integrating SS to enhance the effectiveness of green lean initiatives. Other mangers and statisticians assumed the possibility to integrate SS with ISO 9001 (Ismyrlis and Moschidis, 2018; Marques et al , 2013). A gap, instead, is still present in the application of fuzzy logic-based SS (Vinodh and Swarnakar, 2015; Yadav et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

The application of six sigma to reduce the pre-operative length of hospital stay at the hospital Antonio Cardarelli

Improta¹,

Ricciardi

Borrelli³

et al. 2019

IJLSS

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Purpose The best treatment for femur fractures is the surgical one within 48 h from the admission to the hospital. These fractures have serious consequences, both in terms of morbidity and socio-economic impact. In the hospital A.O.R.N. Cardarelli of Naples in Italy, the mean pre-operative length of hospital stay (LOS) was nine days and just 4 per cent of patients was operated within the suggested time. Therefore, a diagnostic-therapeutic-assistance path (DTAP) was implemented to improve the process. Design/methodology/approach This paper analyzes two groups of patients (534 and 562, respectively) before and after the introduction of DTAP, through six sigma (SS) based on define, measure, analyze, improve and control cycle. Age, gender, American Society of Anaesthesiologists (ASA) score, cardiovascular diseases, diabetes and allergies were used as independent subgrouping variables. The t-tests and chi-square were performed to compare the groups, tools of SS were used. Findings The analyses were conducted considering overall patients and some subgroups. The overall reduction in LOS was about 54 per cent, patients without cardiovascular diseases and with a low ASA score had the highest reduction, more than 60 per cent. All the p-values proved a high statistically significant difference between the two groups. Research limitations/implications The influence of the Italian health-care system is a minor limitation while, unfortunately, the lack of a follow-up did not allow quantifying the real gain in health of patients. A lean thinking analysis would suit this context. Practical implications There are practical advantages for both hospital and patients: the hospital will have an increase in admissions and more beds available, while patients will benefit of a faster intervention and a shorter wait. Originality/value This is the first analysis through SS of DTAP showing its positive influences in terms of both socio-economic impact and patients’ outcome. Policy leaders could use this study as an example to evaluate the introduction of the same clinical pathway in other health facilities.

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Section: Introductionmentioning

confidence: 99%

The application of six sigma to reduce the pre-operative length of hospital stay at the hospital Antonio Cardarelli

Improta¹,

Ricciardi

Borrelli³

et al. 2019

IJLSS

View full text Add to dashboard Cite

show abstract

“…Previous work for a similar purpose used scales of different lengths. Surveys using five-point Likert scale were done by Alhuraish et al (2016), Antony and Banuelas (2002), Ismyrlis and Moschidis (2018), Iyede et al (2018), Kalra and Pant (2013), Khalili et al (2017), Kharub (2019), Soti et al (2010) and Stankalla et al (2018).…”

Section: Methodsmentioning

confidence: 99%

“…Factors responsible for the successful implementation of both approaches are also common as evident from Table 1. Therefore, practitioners and organisations now use these concepts together as LSS (Ismyrlis and Moschidis, 2018; Manisha et al , 2016; Muraliraj et al , 2018; Singh and Rathi, 2019; Yadav et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

Critical success factors for lean six sigma in quality 4.0

Yadav

Shankar

Singh

2021

IJQSS

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Purpose Critical success factors (CSF) for lean six sigma (LSS) using quality 4.0 are not researched so far. This study aims to bridge this gap. It also validates CSF already identified for LSS under conventional technologies. Design methodology approach Empirical research using the questionnaire method is conducted. Construct of the questionnaire is checked using Cronbach’s alpha and responses received are analysed using t-test and exploratory factor analysis. Findings In total, 20 factors are evaluated for LSS success. It includes 7 factors related to quality 4.0 technologies and 13 related to the conventional set-up. All 7 quality 4.0 related factors were found critical; whereas, under traditional set-up, 11 factors out of 13 were found critical. Practical implications The study will help enterprises in the fast and effective adoption of quality 4.0 and seamless integration with LSS. The post-Covid-19 business scenario is expected to be information technology focussed. The findings of this study will be useful in these circumstances. Consultants and practitioners can prioritise their efforts based on newly identified CSF. The new revelation about CSF for LSS in quality 4.0 enriches theory as well. Social implications Developing skills based on newly identified CSF will help people in remaining employable in the era of automation, robotics and artificial intelligence which is otherwise ill-famed for destroying jobs. Originality value CSF for LSS using quality 4.0 is a new contribution. It differentiates CSF established earlier for conventional technologies. Moreover, many CSF are common for LSS and industry 4.0, therefore this study will also help in smoother adoption of industry 4.0/quality 4.0 in organisations.

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“…It has been implemented successfully by many large manufacturing companies, such as Motorola, GE, and Honeywell. The study of Ismyrlis and Moschidis ( 2018 ) demonstrated that companies implementing Six Sigma outperform companies that do not incorporate it.…”

Section: Literature Reviewmentioning

confidence: 99%

Application of six sigma and the system thinking approach in COVID-19 operation management: a case study of the victorian aged care response centre (VACRC) in Australia

2022

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COVID-19 has posed many unique and critical challenges in various contexts and circumstances. This often led the stakeholders and decision-makers to depart from traditional thinking and the business-as-usual processes and to come up with innovative approaches to tackle various mission-critical situations within a short time frame. In this paper, a real-life case study of COVID-19 operation management following a multi-disciplinary, multi-stakeholder novel integrated approach in aged care facilities in Victoria, Australia, is presented which yielded significant and positive outcomes. The purpose of the intervention was to develop an integrated system performance approach through the application of various quality management tools and techniques to achieve organizational excellence at the aged care centers. The case involved the use of mathematical models along with statistical tools and techniques to address the specific problem scenario. A system-wide management plan was proposed, involving various agencies across several residential aged care facilities during the pandemic. A three-step methodological framework was developed, where Six Sigma, a system thinking approach, and a holistic metric were proposed to manage the value chain of the pandemic management system. The experimental result analyses showed significant improvement in the management process, suggesting the validity and potential of this holistic approach to stabilize the situation and subsequently set the conditions for operations excellence within the sectors. The model offers new insight into the existing body of knowledge and offers an efficient approach to achieving operational excellence in any organization or business regardless of its type, shape and complexity, which can help practitioners in managing complex, mission-critical situations like a pandemic.

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A theoretical and statistical approach of Six Sigma differentiation from other quality systems

Cited by 7 publications

References 77 publications

The application of six sigma to reduce the pre-operative length of hospital stay at the hospital Antonio Cardarelli

The application of six sigma to reduce the pre-operative length of hospital stay at the hospital Antonio Cardarelli

Critical success factors for lean six sigma in quality 4.0

Application of six sigma and the system thinking approach in COVID-19 operation management: a case study of the victorian aged care response centre (VACRC) in Australia

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