Pub Date : 2019-08-01DOI: 10.1504/IJSSCA.2019.10022899
Nasibeh Azadeh-Fard, F. Megahed, F. Pakdil
In-patient length of stay (LOS) at hospitals is considered a critical 'catch-all' metric because it is widely used to measure the overall efficiency of healthcare services. The goal of this paper is to effectively analyse and monitor hospital LOS to help improve healthcare quality. Given the fact that abnormal LOS results in increasing cost for all stakeholders, this study proposes a new framework based on cross-industry standard process for data mining framework (CRISP-DM) and Six Sigma methodology, including control charts for monitoring and improving LOS. The utility of the proposed method is demonstrated through a case study involving 11,722 internal medicine patients at a large hospital in Southwest Virginia. Outcomes of this study have potential to support decision makers at hospitals to detect abnormal LOS by identifying effective and efficient ways to minimise it, thereby reducing costs.
{"title":"Variations of length of stay: a case study using control charts in the CRISP-DM framework","authors":"Nasibeh Azadeh-Fard, F. Megahed, F. Pakdil","doi":"10.1504/IJSSCA.2019.10022899","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10022899","url":null,"abstract":"In-patient length of stay (LOS) at hospitals is considered a critical 'catch-all' metric because it is widely used to measure the overall efficiency of healthcare services. The goal of this paper is to effectively analyse and monitor hospital LOS to help improve healthcare quality. Given the fact that abnormal LOS results in increasing cost for all stakeholders, this study proposes a new framework based on cross-industry standard process for data mining framework (CRISP-DM) and Six Sigma methodology, including control charts for monitoring and improving LOS. The utility of the proposed method is demonstrated through a case study involving 11,722 internal medicine patients at a large hospital in Southwest Virginia. Outcomes of this study have potential to support decision makers at hospitals to detect abnormal LOS by identifying effective and efficient ways to minimise it, thereby reducing costs.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74484641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-08-01DOI: 10.1504/IJSSCA.2019.10022873
Jakrapong Karnjanasomwong, N. Thawesaengskulthai
The aim of this research is to examine how improvement and innovation methodology can be practically implemented in manufacturing area in Thailand. Six Sigma is considered an essential methodology approaching for product and process improvement. The methodology applies five Six Sigma phases, define, measure, analyse, improve and control (DMAIC) for resolving the respected problems which demonstrated a lot of successful stories for decades. This paper is an attempt to introduce new model of manufacturing improvement and innovation which mainly based on DMAIC phases. Dynamic sigma-TRIZ solution model is proposed to enhance the opportunity of deploying improvement and creating innovative solutions in manufacturing process whereas that dynamic sigma-TRIZ principle matrix database was created from 107 examined projects and also keep updating regularly once additional problems or opportunities got resolved. The paper discussed the real-life cases when dynamic sigma-TRIZ solution model was implemented successfully in resolving manufacturing problems in different aspects.
{"title":"Dynamic sigma-TRIZ solution model for manufacturing improvement and innovation, case study in Thailand","authors":"Jakrapong Karnjanasomwong, N. Thawesaengskulthai","doi":"10.1504/IJSSCA.2019.10022873","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10022873","url":null,"abstract":"The aim of this research is to examine how improvement and innovation methodology can be practically implemented in manufacturing area in Thailand. Six Sigma is considered an essential methodology approaching for product and process improvement. The methodology applies five Six Sigma phases, define, measure, analyse, improve and control (DMAIC) for resolving the respected problems which demonstrated a lot of successful stories for decades. This paper is an attempt to introduce new model of manufacturing improvement and innovation which mainly based on DMAIC phases. Dynamic sigma-TRIZ solution model is proposed to enhance the opportunity of deploying improvement and creating innovative solutions in manufacturing process whereas that dynamic sigma-TRIZ principle matrix database was created from 107 examined projects and also keep updating regularly once additional problems or opportunities got resolved. The paper discussed the real-life cases when dynamic sigma-TRIZ solution model was implemented successfully in resolving manufacturing problems in different aspects.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89700571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-19DOI: 10.1504/IJSSCA.2019.10020040
J. Ravichandran
While specification limits represent voice of the customer, control limits address voice of the process. Specification limits and control limits are treated as independent entities until modified control limits are proposed which stress the need for control limits to keep satisfying specification requirements as well. High quality processes always attempt to provide products right the first time where specification requirements are checked for controlled processes. This calls for a strong link between control limits and specification limits. A house of quality-like representation can be used to describe such a link. It is preferred to intertwine the features of specification limits with the construction of control limits to achieve right the first time. In this paper, a critical review on specification limits and control limits is made from the perspective of Six Sigma quality and the need for a strong bond between the two is stressed.
{"title":"A review of specification limits and control limits from the perspective of Six Sigma quality processes","authors":"J. Ravichandran","doi":"10.1504/IJSSCA.2019.10020040","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10020040","url":null,"abstract":"While specification limits represent voice of the customer, control limits address voice of the process. Specification limits and control limits are treated as independent entities until modified control limits are proposed which stress the need for control limits to keep satisfying specification requirements as well. High quality processes always attempt to provide products right the first time where specification requirements are checked for controlled processes. This calls for a strong link between control limits and specification limits. A house of quality-like representation can be used to describe such a link. It is preferred to intertwine the features of specification limits with the construction of control limits to achieve right the first time. In this paper, a critical review on specification limits and control limits is made from the perspective of Six Sigma quality and the need for a strong bond between the two is stressed.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76154911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-19DOI: 10.1504/IJSSCA.2019.10020012
R. Trehan, Ajay Gupta, Mohit Handa
In the present competitive scenario most of the companies are using improvement strategies like lean and Six Sigma for obtaining good quality products, reduction in overall cost and for enhancing availability of equipment. Lean and Six Sigma are two different tools which are used in combination for operational excellence. It provides a framework for waste reduction and elimination of non-value added activities along with variability reduction tools. Lean tools reduce the waste and non-value adding activity and enhance the effectiveness of equipment, tools and machines. Six Sigma tools helps in decision making based on data which finally reduce the variability in the process. In this case study, Lean Six Sigma framework is implemented to reduce the defects which occurred during the manufacturing process in a bulb manufacturing company in India. The framework used combines the lean as well as Six Sigma tools to mitigate the defects and increase the customer satisfaction.
{"title":"Implementation of Lean Six Sigma framework in a large scale industry: a case study","authors":"R. Trehan, Ajay Gupta, Mohit Handa","doi":"10.1504/IJSSCA.2019.10020012","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10020012","url":null,"abstract":"In the present competitive scenario most of the companies are using improvement strategies like lean and Six Sigma for obtaining good quality products, reduction in overall cost and for enhancing availability of equipment. Lean and Six Sigma are two different tools which are used in combination for operational excellence. It provides a framework for waste reduction and elimination of non-value added activities along with variability reduction tools. Lean tools reduce the waste and non-value adding activity and enhance the effectiveness of equipment, tools and machines. Six Sigma tools helps in decision making based on data which finally reduce the variability in the process. In this case study, Lean Six Sigma framework is implemented to reduce the defects which occurred during the manufacturing process in a bulb manufacturing company in India. The framework used combines the lean as well as Six Sigma tools to mitigate the defects and increase the customer satisfaction.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85246692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-19DOI: 10.1504/IJSSCA.2019.10020041
M. Chand, Suraj, O. P. Mishra
The role of lean manufacturing (LM) has increased with an increase competition in global market. A customer wants to buy a product at the lowest possible price without compromising quality. To overcome this problem, the role of lean manufacturing has been introduced. Lean manufacturing is capable for waste reduction without compromising both quality and productivity. To fulfil this purpose, 13 practices of LM have been identified through literature review and expert opinions from academics and industry experts. To identify the cross impact of LM practices, an interpretive structural modelling (ISM) approach have been utilised to find interrelation between these LM practices using MICMAC analysis. Results of this analysis are highly beneficial towards the implementation in industries getting lean.
{"title":"Analysis of lean practices in manufacturing industries: an ISM approach","authors":"M. Chand, Suraj, O. P. Mishra","doi":"10.1504/IJSSCA.2019.10020041","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10020041","url":null,"abstract":"The role of lean manufacturing (LM) has increased with an increase competition in global market. A customer wants to buy a product at the lowest possible price without compromising quality. To overcome this problem, the role of lean manufacturing has been introduced. Lean manufacturing is capable for waste reduction without compromising both quality and productivity. To fulfil this purpose, 13 practices of LM have been identified through literature review and expert opinions from academics and industry experts. To identify the cross impact of LM practices, an interpretive structural modelling (ISM) approach have been utilised to find interrelation between these LM practices using MICMAC analysis. Results of this analysis are highly beneficial towards the implementation in industries getting lean.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77337817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-19DOI: 10.1504/IJSSCA.2019.10020036
R. Mandloi, R. C. Gupta, N. Tiwari
Growing expectation from global market poses challenges to the manufacturing industries to provide the best quality products at a competitive price. Cost of poor quality has gone up significantly with the traditional approach of controlling the quality. Traditional approaches are not very effective in solving chronic quality issues. In order to meet up the global expectation, organisation needs to explore effective and fast approaches which utilise various advanced techniques to solve chronic quality issues. This paper demonstrates the systematic use of Shainin techniques to solve chronic quality problem of noise from automotive transmission. Transmission is a complex system having many subassemblies, components and each component in turn has multiple parameters contributing to noise makes transmission noise an extremely complex multi-factorial problem. Shainin techniques known as component search and paired comparison have been used sequentially to identify components and subsequently the parameters of components contributing to the noise in the transmission.
{"title":"Identification of components and parameters contributing to noise in transmission through the use of Shainin techniques","authors":"R. Mandloi, R. C. Gupta, N. Tiwari","doi":"10.1504/IJSSCA.2019.10020036","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10020036","url":null,"abstract":"Growing expectation from global market poses challenges to the manufacturing industries to provide the best quality products at a competitive price. Cost of poor quality has gone up significantly with the traditional approach of controlling the quality. Traditional approaches are not very effective in solving chronic quality issues. In order to meet up the global expectation, organisation needs to explore effective and fast approaches which utilise various advanced techniques to solve chronic quality issues. This paper demonstrates the systematic use of Shainin techniques to solve chronic quality problem of noise from automotive transmission. Transmission is a complex system having many subassemblies, components and each component in turn has multiple parameters contributing to noise makes transmission noise an extremely complex multi-factorial problem. Shainin techniques known as component search and paired comparison have been used sequentially to identify components and subsequently the parameters of components contributing to the noise in the transmission.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87745700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-19DOI: 10.1504/IJSSCA.2019.10020011
Nasim Nabiyouni, M. Franchetti
This work encompasses optimising red bag waste management program by using Lean Six-Sigma methodology in a Toledo area hospital, essentially increasing value by decreasing defects and managing disposal frequency. The author conducted full process analysis of red bag waste management including the human factor, economic, environmental, assessments of entire process by implementing Lean Six Sigma approach. However numbers of papers have applied Lean Six Sigma method to improve quality factors in healthcare, no single publication has considered all areas that are covered in this study. The data illustrates proper disposal can minimise waste by 55% which would lead to a reduction of environmental impact and a cost savings for the healthcare facility.
{"title":"Applying Lean Six Sigma methods to improve infectious waste management in hospitals","authors":"Nasim Nabiyouni, M. Franchetti","doi":"10.1504/IJSSCA.2019.10020011","DOIUrl":"https://doi.org/10.1504/IJSSCA.2019.10020011","url":null,"abstract":"This work encompasses optimising red bag waste management program by using Lean Six-Sigma methodology in a Toledo area hospital, essentially increasing value by decreasing defects and managing disposal frequency. The author conducted full process analysis of red bag waste management including the human factor, economic, environmental, assessments of entire process by implementing Lean Six Sigma approach. However numbers of papers have applied Lean Six Sigma method to improve quality factors in healthcare, no single publication has considered all areas that are covered in this study. The data illustrates proper disposal can minimise waste by 55% which would lead to a reduction of environmental impact and a cost savings for the healthcare facility.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78707168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.1504/ijssca.2019.103563
N. Theeb, H. Smadi, M. Obaidat
{"title":"Evaluation of the performance and the efficiency of water supply organisations using data envelopment approach","authors":"N. Theeb, H. Smadi, M. Obaidat","doi":"10.1504/ijssca.2019.103563","DOIUrl":"https://doi.org/10.1504/ijssca.2019.103563","url":null,"abstract":"","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77526146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-13DOI: 10.1504/IJSSCA.2017.086599
J. Dinis-Carvalho, S. Fernandes, J. C. R. Filho
EduScrum and Lean Teaching and Learning (LTL) are two student-centred learning approaches where the greatest responsibility for learning is transferred from the teacher to the student. This paper aims to analyse these two approaches, eduScrum and Lean Teaching and Learning (LTL), and propose a set of LTL features that could be adopted by eduScrum and vice-versa to enhance better teaching and learning in higher education. A deep review of the background, description and step-by-step implementation of each of the approaches is explored in the paper. Based on a critical analysis of best practices from each approach, the authors present a set of guidelines for improvements in each approach based on the best practices of the other approach, discussing specific features, activities or artefacts which can be introduced to significantly improve the other model and lead to greater quality in the teaching and learning process.
{"title":"Combining lean teaching and learning with eduScrum","authors":"J. Dinis-Carvalho, S. Fernandes, J. C. R. Filho","doi":"10.1504/IJSSCA.2017.086599","DOIUrl":"https://doi.org/10.1504/IJSSCA.2017.086599","url":null,"abstract":"EduScrum and Lean Teaching and Learning (LTL) are two student-centred learning approaches where the greatest responsibility for learning is transferred from the teacher to the student. This paper aims to analyse these two approaches, eduScrum and Lean Teaching and Learning (LTL), and propose a set of LTL features that could be adopted by eduScrum and vice-versa to enhance better teaching and learning in higher education. A deep review of the background, description and step-by-step implementation of each of the approaches is explored in the paper. Based on a critical analysis of best practices from each approach, the authors present a set of guidelines for improvements in each approach based on the best practices of the other approach, discussing specific features, activities or artefacts which can be introduced to significantly improve the other model and lead to greater quality in the teaching and learning process.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87421354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-13DOI: 10.1504/IJSSCA.2017.086597
Rajesh Attri
Interpretive structural modelling (ISM) approach is mainly utilised for developing structural relationship among the elements associated with an issue or problem. In recent years, application of ISM approach has tremendously increased in different application areas. In the current work, a comprehensive literature review on the applications of ISM approach has been carried out. This literature review is based on 406 research papers published in 183 journals since its inception. The classification scheme adopted for this paper consists of ten application areas: (1) supply chain and logistics management; (2) quality management; (3) manufacturing system; (4) safety, health and environment management; (5) information management; (6) service management; (7) governance; (8) financial management; (9) energy management; (10) marketing management. Furthermore, literature has been classified on the basis of: (1) integration with other approaches; (2) publication year; (3) publication journal; (4) authors' nationality; (5) ISM version. The literature analysis will act as an information bank for the researchers keen to apply ISM approach in their research area.
{"title":"Interpretive structural modelling: a comprehensive literature review on applications","authors":"Rajesh Attri","doi":"10.1504/IJSSCA.2017.086597","DOIUrl":"https://doi.org/10.1504/IJSSCA.2017.086597","url":null,"abstract":"Interpretive structural modelling (ISM) approach is mainly utilised for developing structural relationship among the elements associated with an issue or problem. In recent years, application of ISM approach has tremendously increased in different application areas. In the current work, a comprehensive literature review on the applications of ISM approach has been carried out. This literature review is based on 406 research papers published in 183 journals since its inception. The classification scheme adopted for this paper consists of ten application areas: (1) supply chain and logistics management; (2) quality management; (3) manufacturing system; (4) safety, health and environment management; (5) information management; (6) service management; (7) governance; (8) financial management; (9) energy management; (10) marketing management. Furthermore, literature has been classified on the basis of: (1) integration with other approaches; (2) publication year; (3) publication journal; (4) authors' nationality; (5) ISM version. The literature analysis will act as an information bank for the researchers keen to apply ISM approach in their research area.","PeriodicalId":35430,"journal":{"name":"International Journal of Six Sigma and Competitive Advantage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81277321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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