Dissertations / Theses on the topic 'Sex sigma'
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Berg, Jenny, and Yvonne Widell. "Förbättring av sjukskrivningsprocess med Sex Sigma och mikrosystem perspektiv." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ. Kvalitetsförbättring och ledarskap inom hälsa och välfärd, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-18581.
Full textBackground: The sickness absence in Sweden 2004 was highest inWestern Europe and the country's main economic problem. The government gave incentives to make the sick-leave process included in healthcare management system, partly because of changing requirements and deficiencies in the quality of medical-certificates quality. A local study at an orthopedic clinic showed that 23% of patients were dissatisfied with sick-leave. Purpose: Through Six Sigma's DMAIC problem-solving model in combination with micro-systems perspective, improving the quality of medical certificates, create goals and routines in the sick-leave process and increase patient satisfaction Method: Interviews of project participants were carried out using a micro-systems perspective. Through Six Sigma problem-solving model areas of improvement were focused on information exchange to patients and physicians as well as formulating goals and written routines. Fifty-eight patients were interviewed about their sick-leave satisfaction. Measurements of "unnecessary" actions were performed and the quality of medical certificates was followed with control-charts. The improvement project was evaluated by reflection in the group continuously. Results: Improvements with Six Sigma and micro-systems perspective has contributed to improving the quality of medical certificates significantly p<0.001. Routines and goals for sick-leave process have been implemented in the management system. 100% of the patients at the orthopedic clinic are satisfied. Phone calls about deficiencies and incorrect cases have decreased. This methodology has contributed to a broadened understanding of patients´ experiences and between different staff-categories. The actions have had impact because the improving proposals came from and were carried out by its own staff. Discussion: The Six Sigma and the micro-systems perspective has patient focus which can affect the values and willingness to change. The result from this study supports other studies and the approach in this study resulted in significantly improved results. Improvement actions are not generalizable, but the approach can be usefully applied in improvement efforts. Further studies of the approach and its sustainability over time are needed to strengthen the evidence.
Anderberg, My. "Förbättrande av Punktlighet – ur ett Lean-perspektiv : Avgångspunktlighet för SJ AB Hagalund." Thesis, KTH, Industriell Management, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186522.
Full textThis report is a study of departure punctuality at the SJ train depot in Hagalund. The purpose of the report has been to find underlying patterns and reasons behind late departures. The theoretical framework that has been used is a combination of Lean and Six Sigma, where the management tool Lean has its basis in optimal resource utilization and minimizing of waste. The Lean concepts that have primarily been used are Visualization and Standardization, this since those are areas in which SJ have been lacking. The practical work behind the report has been done using the Six Sigma method DMAIC (Define, Measure, Analyze, Improve, Control), where a large focus has been put on Measuring and Analyzing. The quantitative data that’s been used has come directly from SJ’s own late departure reports, where trains departing 5 minutes or more past the scheduled time are considered to be late. This lateness is automatically registered, where the scheduled departure time is called Right Time (RT) and RT > 5 hence indicated a late departure. The reason behind the lateness is also noted for all departures, but this data is entered manually and the reason is chosen from a limited, predefined list of lateness codes (JDE codes). A data mining of the late departure statistics for the Timetable period 2012 (December 11th 2011 to December 8th 2012) revealed large flaws with the manual lateness reporting, where inconsistent usage of the JDE codes made it impossible to discern any underlying patterns in lateness factors. To circumvent the data flaws an experiment was mad during November 2012, where all late departure reporting during the month was monitored to ensure proper JDE code usage. The result revealed a large previously unknown source of delay, “Human error”, which had hitherto been hidden in the catch-all code “Miscellaneous”. A visualization of the automatically collected departure data, the RT data, in turn revealed clear issues during personal shift changes, and also concluded 1pm-6pm CET to be a late departure heavy time of the day. The visualization of departure data was also compared to the visualization of trains’ time spent at the depot, the so called turn time, where trains spending less than three hours at Depot Hagalund could be shown to affect the general departure punctuality to a higher degree than other trains. Through use of regression analysis it could also be shown that trains arriving late with a short turn time, to a higher degree also departed late, whilst trains with a longer turn time were seemingly statistically unaffected by delays in arrival.
Svensson, Andreas. "5S och DMAIC : Första steget mot Lean Sex sigma En studie för införande av Lean Sex sigma i en mindre organisation i samarbetet med Eco-Boråstapeter." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19026.
Full textSheremet, Tatiana. "Förbättring av rådgivningsprocess mot ökad kundnöjdhet med stöd av Sex Sigma." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-359572.
Full textSwedish Quality Index survey shows low customer satisfaction in one of the Swedish banks. The bank has several categories of customers that impose different quality service requirements. Customer satisfaction among the priority customers is measured with the bank's own customer barometer on a scale of 0 to 10 where two highest ratings indicate that these customers would recommend the bank to others. The purpose of the survey is to evaluate and analyze customer satisfaction and advisory process considering the services provided. The work points at developing improvements towards increased customer satisfaction. The thesis therefore consists of a literature study including qualitative and quantitative data analysis based on Six Sigma's problem-solving methodology, DMAIC (Define-Measure-Analyze-Improve-Control). Research questions are based on customer satisfaction and coaching theories. The results from the study show that quality factors such as professionalism, attitude, and reliability are the most important for increasing customer satisfaction and contributing to an improved counseling process with coaching. The conclusion is that the bank's adviser can apply a coaching advisory model by concentrating on active communication through follow-up. In this way, the priority customers can be motivated to recommend the bank to others.
Cedén, Zandra. "Vägen mot flexibilitet : En studie av Sex Sigma och lean production inom industrin." Thesis, Uppsala University, Department of Economic History, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8541.
Full textThis paper is about the new methods and metrics used in industry and business today striving for better revenues and larger market shares. It investigates the relations between the old fordistic and tayloristic way of manufacturing and compares it to the models used in industry today for being competitive, seeking to please customers and becoming more flexible. More specific the paper is about if Six Sigma and lean production are the key for succeeding these days. SKF:s factory in Gothenburg and other companies will make an example for how these methods are used in practice.
The aim is to try to answer if these systems with inherited tools and methods are the right way to get the flexibility that is needed for being able to deliver the right goods to customers and market. For a company to be flexible decisions must be made fast and needed changes must be able to be done easy and without too large costs and investments. Both in Six Sigma and lean production the total staff in a company is involved with quality matters and continuous improvements. This brings an atmosphere and a certain way to work that makes it possible to reach high defined goals and move towards a common vision. Flexibility can be reached in both production and in developing new products when a company has an atmosphere that makes it possible for all personnel to talk the same language and strive for the same thing. Six Sigma and lean production have the possibility to achieve a higher level of flexibility, that is, when being applied in right places in the right way.
Alwaeli, Laith. "Sjukvårdens behov av kurser inom verksamhetsutveckling." Thesis, Högskolan Väst, Avd för maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5789.
Full textKasljevic, Antonio, and Jakob Johansson. "Sex Sigma för kvalitetssäkring av cirkulära processer : En fallstudie vid Carlsbergs hanterings- och tappningsprocess av ölfat." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69854.
Full textManufacturing organizations have traditionally utilized linear business models where ownership of the product has shifted when the sale process is complete. However, consumers, organizations and society as a whole has gained awareness about Earths' limited resources and driven EU to introduce a new sustainable strategy to facilitate the transition to circular economies. Circular economies are business models that focus on product design and development of related processes within the organization to enable reuse of products and materials, hence extending the product lifecycle. Carlsberg is an organization that utilizes circular processes in their manufacturing processes of beer, soda and cider, where a part of the produced volume is sold in kegs. The business model of the kegs is a circular process where kegs circulate in a closed system. Carlsberg has during the last three years experienced an increase in reclamations of kegs, mainly because of quality shortcomings in the process. The study was conducted with the Six Sigma problem-solving method DMAIC to map related process, identify root-causes to reclamations and develop recommendations to improve current processes. DMAIC includes the steps Define, Measure, Analyse, Improve and Control. Every step has a specific purpose which contributes to structure when conducting an improvement project. Utilization of DMAIC as a problem-solving method has through the years proven to be successful, however no research has been conducted to investigate the outcome of applying DMAIC to improve the quality within circular processes. The purpose of the study has two main perspectives, from an academic perspective the applicability of DMAIC in circular processes is investigated contributing in the transition to circular economies and more research within the area. From a practical perspective, the study aims to identify areas of improvement and reduce future reclamations of beer kegs at Carlsberg. In the study a project where conducted, comparing reclamations of brand-new beer kegs with kegs circulating in the current process. Results show that reclamations decreased with 77 % when the beer was sold in brand-new kegs. This shows that the quality of the kegs has a significant effect on the reclamations and indicates areas of improvement in the current handling and bottling process. A map of the current process and evaluation of historical reclamation data where conducted to identify areas of improvements. Evaluation of historical reclamation data in combination with interviews identified fault in coupling as the third largest cause of reclamation during 2018. The extent of this problem was previously unknown within the organization. The study has identified areas of improvement within accountability, handling, operating procedures and preventive quality assurance. If Carlsberg implement suggested improvements, a realistic goal is to decrease the reclamations of kegs with 30 % which means a potential cost saving of 1 578 000 SEK annually.
Hassan, Sara. "IMPLEMENTERING AV STATISTISK PROCESSTYRNING VID SMÅ SERIER." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27810.
Full textStatistical process control, SPC, is a widely used technique for quality improvements by companies all over the world. The current trend in manufacturing organizations is directed towards shorter productions runs, which cause problems when applying traditional statistical methods developed for SPC on mass production runs. The critical factors for a successful implementation of SPC on short runs are still not fully explored and require further research. The main purpose of this study was to present a conceptual framework that illustrates the successful implementation of SPC in organizations with short runs and extensive product portfolio. In order to answer the research questions, a case study research methodology with both quantitative and qualitative methods was used. Participant observations and a workshop including 15 participators were performed in order to identify existing process variability’s and current state of the studied production processes. Three product families and key quality characteristics of each product were chosen to be monitored in control charts, based on scrap costs and staff experiences of the production process. A measurement system analysis was used to determine if the gauges, used to make measurement quality controls, were capable. Control charts were constructed and adjusted to short production runs. Statistical analysis was then made on the information gathered through the control charts to determine if statistical tools within SPC was useful for quality improvements on short production runs. Also a qualitative benchmark was performed with four manufacturing companies to take part of their experiences and knowledge related to the implementation and application of SPC. The findings indicate that the studied organization needs to improve working methods related to quality inspections and monitoring of the production processes. The organization also needs to improve the measurement system and make an extensive work of improvement to reduce the many identified special causes of variation that affects the processes and product quality, before implementing SPC in the organization. Findings showed that SPC tools and techniques successfully can be adopted to improve short run production processes when using standardized control charts for different product types. Short run production processes involve more complex statistical analysis which could inhibit the success of an implementation of SPC. The analysis of the qualitative and quantitative findings resulted in a framework including 15 critical success factors for the implementation of SPC in short production runs. All the following critical success factors should be taken into account by organizations with short runs that aspire a successful implementation of SPC: (1) Be ready to make a cultural change including the recognition of the importance of SPC within the whole organization, (2) Communicate a clear goal and long-term strategy, (3) Create motivation and commitment from top management to operators on the shop floor, (4) Select a SPC coordinator, (5) Introduce a training programme with feedback from start, (6) Create cross-functional teams, (7) Stimulate cooperation and participation within the work of improvements, (8) Ensure a capable measurement system, (9) Perform a pilot project with enthusiastic employees, (10) Identify critical processes, product families and key quality characteristics, (11) Focus on exploring process behaviors, (12) Construct standardized control charts, (13) Interpret and analyze control charts according to Montgomery’s method for statistical analysis, (14) Attempt to obtain processes in control, (15) Perform continuous follow ups.
Stefanussen, Sund Helene, and Malena Österlind. "Materialhantering och alternativa förpackningslösningar : En studie vid GETRAG All Wheel Drive AB." Thesis, Linköping University, Department of Production Economics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7224.
Full textKöpingsföretaget GETRAG All Wheel Drive AB utvecklar, tillverkar och levererar komponenter för drivteknik till personbilsindustrin. Genom projektet 580-9 planerar företaget att införa en monteringsbana för en nyutvecklad produkt. Till denna önskar företaget skapa en materialhantering som är kostnadseffektiv, lever upp till kundernas krav på hög kvalitet samt utesluter hantering av träemballage vid monteringsbanan. Syftet med examensarbetet är därför att ge förslag till en kostnadseffektiv materialhantering där emballage som avger restprodukter inte hanteras vid monteringsbanan.
För att undersöka examensarbetets frågeställningar har vi utrett hur materialförsörjningen till banan bör skötas. Studien bygger främst på teorier om lean produktion och förpackningslogistik. Utredningen innefattar en analys av nuläget och ger förslag till förbättringar utifrån denna. Vidare har vi studerat effekterna av och kostnaderna för alternativ till trä- och kartongemballage samt gjort en kartläggning av marknaden för alternativa emballage.
Resultatet av studien visar att för att skapa en effektiv materialhantering är det viktigt att eliminera de slöserier som finns i materialflödet, till exempel överproduktion, onödiga lager och onödiga transporter. För att skapa en jämn materialhantering bör mängden artiklar som fylls på vid banan motsvara förbrukningen under en bestämd tidsperiod, eller multiplar av denna period, för samtliga produkter. Vidare bör inte montörerna ansvara för påfyllnaden av artiklar vid monteringsbanan, detta bör istället skötas av en materialhanterare.
Studien visar även att olika förpackningar bör användas för olika artiklar beroende på produktens egenskaper samt varifrån den levereras. Att utesluta trä- och kartongemballage medför kostnader som måste vägas mot kundernas krav. Om det är alltför kostsamt att leverantören skickar i emballage som inte avger damm eller flisor finns det möjlighet till en ompackning. Denna bör för det specifika projektet ske internt i form av en manuell dukning.
Utifrån de slutsatser som dragits av arbetet är vår rekommendation att GETRAG All Wheel Drive AB bör arbeta för en mer kostnadseffektiv materialhantering genom lean produktion och sex sigma samt satsa mer på förpackningsutveckling.
GETRAG All Wheel Drive AB is situated in the city of Köping, Sweden. The company develops, manufactures and supplies transmission components for the auto¬motive industry. Through project 580-9 the company is planning an assembly line for a newly developed product. For this project GETRAG wants to create a materials handling that is cost efficient, lives up to the customer demands on high quality and excludes handling of wooden pallets near the assembly line. The purpose of this thesis is therefore to suggest a cost efficient materials handling where packaging materials that give off dust or splinters are not used near the assembly line.
To examine the questions in the thesis a study on how the support of materials to the assembly line should be handled has been made. It is based on theories of lean production and packaging logistics. The study includes an analysis of today’s flow and gives suggestions for improvements. We have also evaluated the costs and effects of replacing wooden packaging with alternative packaging materials. In addition, a survey of the market for alternative packaging materials has been made.
The results show that to create an efficient handling of materials it is important to eliminate waste like over production, unnecessary storage and unnecessary transportations. To assure a constant flow of articles brought to the assembly line the replenishment should be equivalent to the consumption during a certain period of time, or multiples of this time, for all articles. Furthermore, the assembler should not be the one bringing materials to the assembly line; this should be done by a material handler.
The study also shows that different packaging should be used for different articles, depending on product characteristics and where the supplier is situated. Excluding packaging material made out of wood or cardboard results in costs that must be weighed against customer demands. When it is too expensive to let the supplier deliver the articles in a packaging that does not give of dust or splinters, a repacking station is a possible solution; in the case of project 580-9 in the form of an in-house manual unpacking before the assembly.
Our recommendation is that GETRAG All Wheel Drive AB should try to achieve a more cost efficient materials handling through lean production and six sigma and at the same time put more resources in to packaging development.
Alcayaga, Christian Junior, and Ebba Adolfsson. "Implementering av strategi för kvalitetskontroll : Viktiga faktorer att beakta vid tillämpning av MSA & SPS." Thesis, Tekniska Högskolan, Jönköping University, JTH, Industriell organisation och produktion, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-49863.
Full textSalih, Sarbast, and Abdullah Al-Hamadany. "Effektivisering av robotcell med avseende på cykeltid och framtida produktvariation." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-76655.
Full textThis project has been carried out on the assembly line in Volvo Construction Equipment (VCE), Hallsberg. A robotic cell is located in the assembly line and works in conjunction with the glue stations 17 & 18. Out of 4 cab families, windows are glued and mounted to 3 of the cab families manually. The robotic cell glues the windows for 1 cab family that has 2 types of cabs, with a cycle time of 8.4-9.5 min. Since the takt time is 7.5 min/cab in the other sections of the assembly line, the glue stations are considered a narrow sector according to VCE. With increased future product variability and increased customer demand, VCE considers that the narrow sector has the prerequisites for becoming a future bottleneck, as the takt time will drop to 7.2 min/cab to 2020. With the help of Lean principles and Six Sigma tools, project executives have dealt with the question "How can the robotic cell be made more efficient with respect to cycle time and future product variability?”. Through a current state analysis by means of time measurements, interviews and theory collection, a value-flow chart could then be created. By root cause analysis on non-value-adding but necessary activities an improvement proposal could be presented with an estimated cycle time of less than 7-7.6 min. The thesis workers propose that VCE goes ahead by- finding out how long an automated gluing of windows take (for all cabs),- examining how fast the handling robot needs to work in relation to the glue robot (to satisfy the need for windows for the glue robot),- examining how discarded windows from the robotic cells affect the assembly flow, and- investigating the opportunities to streamline the only value-creating activity for the glue robot with regards to cycle time.
Mujanovic, Malik, and Sebastian Svedgren. "Effektivisering av processer inom lageroptimering Göteborgs Kex AB." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-18051.
Full textProgram: Industriell ekonomi med inriktning logistik
Stjernberg, Niclas. "Godshantering av flygunderhållsartiklar - En värdeflödesanalys ur ett förbättringsperspektiv." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-202098.
Full textSaarela, Markus, and Mats Bäckman. "Integrering av Lean-DMAIC för ett effektivare informationsflöde." Thesis, Mittuniversitetet, Avdelningen för informationssystem och -teknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30832.
Full textFöretag har under historiens gång kommit att förstå vikten av kvalitetsarbete för att vara konkurrenskraftiga på marknaden. Processutveckling är en naturlig del av kvalitetsarbete och det finns olika filosofier och verktyg tillgängliga för ändamålet, exempelvis Lean Production (Lean) och Sex Sigma. Forskningsläget av dessa program är välstuderade, men kunskapen om kombinationen av Lean och Sex Sigmas arbetsmetodologi Define-Measure-Analyze-Improve-Control (DMAIC) är lägre. Målet med undersökning är därför att integrera Lean med DMAIC och syftet är att utreda huruvida DMAIC är konsistent med teorier om Lean. Studiens frågeställning har varit hur Lean-DMAIC kan användas för att minimera avvikelser i informationsflöden i ett globalt produktionsföretag. Syftet uppnås med hjälp av en litteraturstudie, frågeställningen besvaras med hjälp av en fallstudie och målet med en kombination av studierna. Fallstudiens arbetssätt baseras på DMAIC som metodologi för arbetets struktur, medan Leans filosofi genomsyrar arbetet samtidigt som dess verktyg utnyttjas. Resultatet visade att Lean-DMAIC fungerar simultant, både teoretiskt och praktiskt, för att upptäcka avvikelser i informationsflöden. Därmed har undersökningens mål uppfyllts. Efter studien gick det att konstatera huruvida en bättre frågeställning hade varit hur Sex Sigma är konsistent med Lean, eftersom DMAIC är en metod framför filosofi. DMAIC gav steg-för-steg metoden för hur arbeten utformades och processen undersöktes, medan Lean gav verktyg och rätt tankesätt för att lyckas. Detta resulterade i förbättringsåtgärder åt företaget där fallstudien genomfördes.
Olsson, Terése. "Förbättring av ett flöde för prototypmaterial : En studie i en verkstadsindustri." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78834.
Full textThis project was implemented during the spring of 2020 as a bachelor thesis for the Bachelor Engineering Program in Innovation Technology and Design at Karlstad University. The bachelor thesis was made in collaboration with a high-tech company operating worldwide. The purpose of the project was to find suitable methods and tools, adapted to the company, in order to be able to purpose improvements to reduce the lead times in the prototype flow. To be able to fulfil the purpose, multiple interviews were conducted, data was collected, and a comprehensive literature study was made. The literature study included tools and methods within the improvement programs Lean and Six Sigma. The work resulted in eight identified problem areas. These can be summarized in three areas that requires continued word by the company. The first requires data with a higher quality and more detailed information, the second is that the company should include the coworkers in the improvement work and the subcontractors should be reviewed. Either the company should have special suppliers for prototype equipment or restarting their own prototype manufactory.
Winninge, Alexander, and Johan Rülcker. "Systematiskt förbättringsarbete för minskning av kvalitetsbristkostnader : En fallstudie inom industriellt byggande." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73777.
Full textSager, Josef. "Kvalitetssäkring av utgående gods : - En fallstudie i ett tillverkande företag." Thesis, Högskolan i Gävle, Industriell ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36745.
Full textDue to an ever-changing environment where customers' needs, requirements and expectations vary more and more, companies can be pressured to meet these. A result of this trend can be reflected in new technical solutions as well as efficiencies in both products and services. This entails increased competition and therefore quality development becomes an important part of the efficiency work. There is a strong focus on quality assurance in order to increase competitive advantages and strengthen companies' brands. However, there is a great deal of room for streamlining the quality work in manufacturing companies. Companies can use various improvement tools in the improvement work, for example Six Sigma, Lean, Cause-and-effect-diagrams and Failure mode and effect analysis. The purpose of the study is to investigate and map the quality assurance work regarding outgoing goods in a manufacturing company and then present improvement proposals. A case study has been carried out at the elevator company Cibes Lift Group AB. The chosen research method for the study is a qualitative case study based on primary and secondary data. The results of the study visualize that Cibes Lift Group AB works preventively with quality assurance when checklists are used which contain a number of requirements that should be met before the goods are sent out to the customers. However, there are many improvement tools that the company does not apply, such as Six Sigma, Cause-and-effect-diagrams, Failure mode and effect analysis and so on. Thus, there is a lot of potential for improvement in the company's quality assurance work but also in the other quality work.
Yousefi, Mojtahedi Ali, Larsson Martin Samuelsson, Sebastian Andersson, and Marcus Rosell. "När e-handelsföretag går från larv till fjäril : En studie av hur små e-handelsföretag kan förbättra orderplock- och returprocessen utifrån ett Leanperspektiv." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105120.
Full textAndersson, Peter, and Jacob Sundberg. "Ökad effektivitet inom lastningsprocesser : En fallstudie enligt DMAIC vid Viking Malts lastningsprocesser av malt." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79625.
Full textGalvani, Luis Ricardo. "Análise comparativa da aplicação do Programa Seis Sigma em processos de manufatura e serviços." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18156/tde-25112010-105508/.
Full textCompetitiveness is an important factor for any organization success. The Six Sigma program, which has been used by companies like Motorola and GE since the 1980\'s, has proved to be a successful way to make any company improve all areas of business and therefore, become more competitive. Although it was created and has been growing in manufacturing successfully, its implementation can reach a much wider field of application. In the last few years, some service corporations also been benefited by the use of this program. However, different from manufacturing, its application is less popular and still restricted to few companies that have already implemented it, which explains limited case studies and projects published in the literature. This paper has the goal to perform a comparative analysis of Six Sigma program implementation in manufacturing as well as in services process and consequently, comprehend the differences and advantages of its application in these different fields. The results of this study, which are based on literature review and also a survey with service companies, have led to some significant similarities and differences like the profile of the Black Belt, project time execution, CTQ use, the nature and availability of the data and application of techniques and tools. Further research, can certainly contribute to the expansion of the Six Sigma methodology improvement in service quality.
Straatmann, Jeferson. "Estudo de práticas adotadas por empresas que utilizam a Produção Enxuta em paralelo ao Seis Sigma no processo de melhoria." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18140/tde-11052016-153155/.
Full textEnterprises are using several improvement processes to adequate their business to the clients needs, to the higher competition, to a need of been more flexible and to reduce the costs of their manufacturing costs. The Six Sigma and the Lean Production are two processes using by enterprises in Brazil and the world wide. Nowadays the integration of those two processes is a challenge to enterprises that search a more efficient way to reduce their wastes and get adapted to the needs of their markets. With this objective the Lean Sigma appears, been applied in the enterprises differently. The dissertation objective is to understand, trough two case studies, how enterprises are connecting Six Sigma and Lean Production in their improvement processes. It was verified that are several ways to run the processes in parallel: in the first enterprise, the two processes was integrated and them shared into two process in parallel. The second enterprise showed the opposite approach, beginning disintegrated, in parallel, and them running together in one improvement processes, called Lean Sigma. The dissertation presents the systematization of the improvement processes of these two enterprises, organized as follow: Global vision and Objectives, Organizational Structure and Improvement Method. Was verified the general approach used in the improvement process and that the integrated approach, that consider the peculiarities of each process, showns as a best option to run Lean Production and Six Sigma in parallel. The research presents, as a result too, a systematization proposal for Lean Sigma, considering the case studies and the consulted literature.
Hortlund, Tina, and Mikaela Öhrvall. "En experimentell studie av styrkepotentialen vid SCA Munksunds kraftlinertillverkning." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64652.
Full textIndustriellt tillverkande företag arbetar i större utsträckning än tidigare med optimering av processer samt för minskad variation kring uppsatta toleransgränser i syfte att bygga in rätt kvalitet i sina produkter. SCA Munksund producerar kraftliner med hög variation för styrkemåtten sprängstyrka och SCT-CD. Variationen leder till att kraftlinerrullar antingen kan säljs med bättre kvalitet än efterfrågat eller så kasseras de på grund av bristande kvalitet. I båda avseendena anser SCA Munksund att variationen för styrkemåtten leder till onödiga kostnader vid produktionen. För att utreda variationen i styrkemåtten hos en specifik ytvikt av kraftliner, 170 g/m2, användes Sex Sigmas problemlösningsmetodik DMAIC som förkortat står för Define, Measure, Analyze, Improve och Control. DMAIC används för att översätta ett komplext produktionsproblem till ett mer hanterligt statistiskt problem. Inom problemlösningsmetodiken kan försöksplanering användas för att identifiera kausala samband och kan tillämpas för ökad processkunskap. Försöksplanering är ett kraftfullt verktyg för att kunna studera hur effekterna av flera processparametrar påverkar kvalitetsparametrar i en process. Vid examensarbetet användes DMAIC för att angripa ett komplext problem. Syftet med examensarbetet var att exemplifiera hur statistiska verktyg och metoder kan tillämpas inom en tillverkande industri för att nå ökad processkännedom. Syftet applicerades praktiskt vid SCA Munksunds kraftlinertillverkning för att skapa ökad förståelse inom de delprocesser där styrkepotentialen kan påverkas. DMAIC användes för att initialt kunna definiera problemet och försöksplanering användes för att skapa regressionsmodeller som kan förklara styrkepotentialen. För att uppnå syftet analyserades historisk data för att identifiera potentiella försöksfaktorer. Lämpliga försöksnivåer kontrollerades vid ett test innan experimenten. Därefter kunde försöksfaktorerna fastställas för sprängstyrkan till A: Läppläge vertikal topplåda, B: Alun bas och C: Koncentration inloppslåda bas och faktorerna för SCT-CD till A: Läppläge vertikal topplåda, B: Utloppsdifferens topp och C: Utloppsdifferens bas. Experimentet genomfördes enligt en 23 försöksplan med tre centrumpunkter. Alun bas och Utloppsdifferens toppkunde med 10 % signifikansnivå identifieras som signifikanta effekter. Anpassade regressionsmodeller skapades i syfte att beskriva vilka faktorer och samspel mellan faktorer som påverkar styrkepotentialen i kraftlinern. Fallstudien illustrerar därmed hur statistiska verktyg och metoder kan tillämpas inom en tillverkande industri för att nå ökad processkännedom. Jämfört mot normala nivåer visar resultaten från de experiment som genomfördes i fallstudien att sprängstyrkan ökade med 2,4 % och SCT-CD med 1,3 % samtidigt som lägre driftskostnader kan uppnås. Efterföljs den rekommenderade nivån för alun i kraftlinerns basskikt leder det till en besparing på 143 700 SEK per år. Besparingen av alun är endast beräknad på den studerade kraftlinern med ytvikt 170 g/m2, vilket innebär att ytterligare besparingar bör vara möjliga för resterande 18 ytvikter.
Schaffer, Augusto. "Aplicação da metodologia Lean Six Sigma para melhoria de um processo produtivo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/149801.
Full textLean Six Sigma is a methodology originated from the integration of Lean and Six Sigma. Lean Six Sigma seeks for eliminate waste and reduce defects, combining benefits from both methodologies. The objective of this dissertation is apply the Lean Six Sigma methodology to improve a production process. In this dissertation is presented a bibliography review about the Lean and Six Sigma methodology, looking for understanding of the Lean Six Sigma sources and a review about the Lean Six Sigma methodology. Based on the bibliography review is presented a methodology to apply Lean Six Sigma, that has the DMAIC as the structure (Define, Measure, Analyze, Improve and Control). This methodology is applied to improve a production process. The results of the Lean Six Sigma application were the increase of sigma level and reduction of process defects, showing that Lean and Six Sigma can be combined and how this combination happens. The success factors of the application of Lean Six Sigma methodology were evidenced.
Törnblom, Johansson Joel. "Lastning till leverans, vad kan gå fel? : En fallstudie av kvalitetsbristkostnader och leveranssäkerhet hos Martin & Servera Logistik i Umeå." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85048.
Full textFawzi, Hussein, and Rheinberg Wilhelm van. "Effektivisering av en tillverkningsprocess med stöd av Lean Six Sigma." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Industriell organisation och produktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-27758.
Full textDohnalová, Petra. "Aplikace přístupů Six Sigma a Lean v projektovém managementu firmy SAP." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-86027.
Full textFahlén, Erik. "FÖRBÄTTRINGSPROJEKT PÅ MICOR AB:S RIKTAVDELNING." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-19926.
Full textTaibo, Alvarado Frederic, and Adam Wulff. "Produktionsutveckling : Lean Six Sigma." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25861.
Full textNová, Marie. "Metoda Six Sigma v podnikové praxi." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-3852.
Full textBrady, James E. "Six sigma and the university." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1110222811.
Full textTitle from first page of PDF file. Document formatted into pages; contains 172 p. Includes bibliographical references. Available online via OhioLINK's ETD Center
Stephen, Philip. "Application of DMAIC to integrate Lean Manufacturing and Six Sigma." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/33585.
Full textThe output of this research is a software tool that could be used in facilities at any stage of lean implementation, including facilities with no existing lean implementation. The developed software tool has the capability to communicate among current and former project teams within any group, division, or facility in the organization. The developed software tool has also the capability to do data analysis (Example: Design of Experiments, Value Stream Mapping, Multi-Vari Analysis etc.). By way of the integration matrix, leanness assessment and the data analysis capability, the developed software tool will give managers a powerful tool that will help in their quest to achieve lean six sigma.
Master of Science
Greplová, Kristýna. "Design For Six Sigma." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230032.
Full textEspinoza-Cuadros, Anelit, Marcavillaca Miriam Criollo, Pablo Mendoza-Vargas, and Jose Alvarez. "Production model for the reduction of order delivery time in a peruvian metalworking company based on the six sigma dmaic methodology." Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/656015.
Full textThe present research work has as objective the application of Six Sigma DMAIC methodology in the production’s processes, the results will be manifested in increasing the efficiency of the production system and in reducing the delay in order delivery. In a metal mechanic company dedicated to the manufacture of electrical boards which focus is the terraced boards there was presented a fulfillment rate failure to deliver on time 46%. On the other hand, the delivery delay is generated because the current productivity does not supply what is required by the customer, therefore a minimum 394 units per month is needed to meet the requirements but currently only produce 226 units per month. For solve this problem it was proposed that Production model that merges the painting and baking areas and that generates an impact on the entire painting operation.
Prepletaná, Miroslava. "Využití nástrojů Six Sigma v praxi." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-71945.
Full textHutton, Thomas C. 1965. "ACE vs. Six Sigma." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17898.
Full textIncludes bibliographical references (leaf 68).
In the early 1980's and 1990's, companies began to build upon the principles of Total Quality Management and developed there own unique quality systems. The most popular and well known of these systems is Six Sigma that was developed by Motorola and successfully adopted by others such as Allied Signal (now Honeywell) and most notably, General Electric. Six Sigma can be characterized as a highly formalized, process oriented improvement tool that is data focused. The Six Sigma process is normally performed by a diverse team, who attack a quality/process problem by analyzing process variation or in statistical terms, sigma. The foundations of Six Sigma are commitment from upper management, detailed training and a regimented diagnostic approach. Another quality operating system is the less known, but very successful, Achieving Competitive Excellence (ACE) operating system. This system was developed and is practiced by United Technologies Corporation (UTC). The ACE system is broader based than the Six-Sigma approach, however, ACE is not as data oriented as the Six Sigma approach. ACE revolves around the three principle categories of process improvement and waste elimination tools, decision-making tools, and problem solving tools. These tools impact issues as diverse, but not limited to, factory floor cleanliness, market feedback analysis, machine tool preventative maintenance and set up reduction. ACE is a combination of lean manufacturing and quality improvement philosophies. This paper provides an analysis of both the Six Sigma and ACE Quality Operating Systems. In the paper the systems are compared and contrasted. Further, strengths and weaknesses of each system are discussed. In particular, the analysis focuses on how ACE can leverage elements
(cont.) and aspects of Six Sigma. The analysis concludes that there are elements of Six Sigma that would benefit ACE. The paper identifies that the strength of Six Sigma's statistical approach and its positive impact on process certification could be beneficially applied to the ACE system. Further, there are recommendations for UTC to place more of an emphasis on ACE training and to accelerate its current efforts to better link quality and lean improvement to product engineering and design.
by Thomas C. Hutton.
M.B.A.
Deml, Kamil. "Zlepšení zákaznického servisu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228039.
Full textJarolímek, Jiří. "Six Sigma ve strojírenské výrobě." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318377.
Full textDobeš, Petr. "Řízení Six Sigma projektů." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-11574.
Full textMagadi, Archana. "USING THE SIX SIGMA POLICY DEPLOYMENT CYCLE TO MITIGATE PROJECT FAILUR." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3977.
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Department of Industrial Engineering and Management Systems
Engineering and Computer Science
Industrial Engineering and Management Systems
Köpsén, Catrine. "Six Sigma at Saab Avitronics - Recommendations for implementation : MBA-thesis in marketing." Thesis, University of Gävle, Department of Business Administration and Economics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-338.
Full textAim: This study investigates the degree of Six Sigma implementation in the aviation industry where it has been successful and is widely spread. Six Sigma is a quality measurement and improvement program and provides businesses with the tools to improve the capability of their business processes. The paper scrutinizes the possible consequences of implementing Six Sigma in a strictly controlled environment and how the defined success factors for implementation could be interpreted in this context. The concept of Six Sigma is examined with the objective to define recommendations for implementation at Saab Avitronics, a company within the aviation industry.
Method: The theoretical background presents what theories for Six Sigma successful implementation that are present and seeks to give the topic depth and perspective to establish a basis on which the analysis later is built on. Phases for implementation of improvement programs and success factors for Six Sigma are investigated. To establish the environment in which the theory is adapted the empirical part of the study presents a marketing audit and a SWOT analysis of Saab Avitronics. An internal survey is also performed to examine Saab Avitronics’ view on its own knowledge in the area of Six Sigma, improvement methodology, statistics, and the attitudes towards implementing a methodology based on Six Sigma. The analysis is performed by applying the theoretical background in the light of the reality of Saab Avitronics. The possibility of a successful implementation is discussed.
Result & Conclusions:Continuous improvements are a general prerequisite for survival and success and the study shows that this has also become a requirement imposed on companies within the aviation industry. Although special conditions apply to the aviation industry and Saab Avitronics there is nothing preventing from implementing the improvement concept in general, but special criteria have to be considered when choosing suitable projects. The study concludes with recommendations for Saab Avitronics on five phases for implementation; Plan, Pilot, Implement, Expand and Integrate, and main activities within these phases are defined. Finally the most important success factors for implementation at Saab Avitronics are defined and also how these should be interpreted for continuous improvement and future success.
Suggestions for future research: The investigation is limited to the aviation industry and to Saab Avitronics. Future research projects could further study the consequences at Saab Avitronics after implementation of Six Sigma, case studies of implementing best practise theories like these recommendations, and studying selection criteria for success factors.
Contribution of the thesis: The study contributes with recommendations to Saab Avitronics when implementing Six Sigma and also to the know-how and knows-what, to others than Saab Avitronics, when studying the same topic or when planning their own implementation of Six Sigma.
Košíková, Jana. "Základní myšlenky metody Six sigma." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228208.
Full textGimenes, Douglas Almeida. "Lean Sigma Applications to Service Departments in the Healthcare Industry." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/591.
Full textEricsson, Evelina. "Förebyggande förbättringsarbete med Design for Six Sigma." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31811.
Full textDesign for Six Sigma (DFSS) är en vidareutveckling av Sex Sigma-konceptet för att genomföra förebyggande kvalitetsåtgärder vid ny- och vidareutveckling av produkter och processer. Med ökade krav på säkrare och snabbare utvecklingsprocesser hos organisationer uppkommer ett behov av detta produkt-, process- och tjänsteutvecklingskoncept. Design for Six Sigma konceptet behandlar strukturering och utveckling av en verksamhets utvecklingsprocess och handlar mycket om applicerandet av det som vanligen benämns innovativ problemlösning. Konceptet syftar således till att frångå Sex Sigmas traditionella strukturerade arbetssätt och istället, utifrån ett innovativt angreppssätt, söka fastställa helt nya lösningar på ett problem. Konceptet består av en verktygslåda med kvalitetsverktyg uppdelade i faser i en utvecklingsmodell. Kombinerat med en organisations projektledningsmodell kan Design for Six Sigma medföra goda resultat vid produkt och processutvecklingsarbete under förutsättning att förståelse och acceptans hos medarbetarna etablerats. Detta examensarbete sammanfattar innehållet i Design for Six Sigma-konceptet. Fokus har legat på DFSSs bakomvarande teorier vilka utgör grunderna till konceptet samt dess innehåll och verktygslåda.
Sörensen, Tony, and Niclas Freijd. "A MODEL FOR HOW TO DECREASE VARIATION IN A PRODUCTION PROCESS - A CASE STUDY." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-20335.
Full textTräger, Thomas. "Six Sigma als Verbesserungsinstrument der Mitarbeiterführung Mitarbeiterführung nachhaltig verbessern." Hamburg Kovač, 2007. http://d-nb.info/987084097/04.
Full textHeger, Jan. "Návrh QMS v malé organizaci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230994.
Full textŠrámková, Dana. "Využití koncepce Six Sigma v odděleních finanční instituce." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-2326.
Full textTrávníček, Vojtěch. "Aplikace nástrojů Lean Six Sigma." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2016. http://www.nusl.cz/ntk/nusl-254250.
Full textRabelo, Lonardo 1983. "Um grupo de Richard Thompson e seu invariante homotopico sigma." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306916.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação Cientifica
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Resumo: Neste projeto de mestrado, estudamos um dos grupos de Richard Thompson e apresentamos os cálculos de seu invariante homotópico Sigma, em qualquer dimensão m, onde m é um inteiro positivo. O grupo de Richard Thompson, denotado por F, foi por ele definido em 1965 e ficou conhecido, mais tarde, por suas propriedades homotópicas e homológicas interessantes. Por exemplo, F é tipo FP8 ([04]). Além disso, F pode ser descrito de maneiras distintas, o que o torna ainda mais interessante. A teoria de invariantes (homotópicos e homológicos) Sigma foi desenvolvida nas últimas décadas do século vinte por R. Bieri, J. Groves, R. Geoghegan, H. Meinert, R. Strebel e outros e está relacionada com propriedades FPm de grupos. O Invariante _1(F) foi obtido em [03]. Recentemente, o caso geral do invariante _m(F) e _m(F, Z) (homotópico e homológico, respectivamente), m = 2, foi descrito por R. Bieri, R. Geoghegan e D. Kochloukova. Nesta dissertação, apresentamos a versão homotópica deste resultado
Abstract: In this project we study one of the Richard Thompson's Group F e its Homotopical m-dimensional Sigma Invariant. The Richard Thompson Group F is very known by its interesting homological and homotopical properties, for example, it is of type FP8 ([04]). Also, F has the property of being defined in several distinct ways. The Sigma Invariant Theory was developed in last decades of twentieth century by R. Bieri, J. Groves, R. Geoghegan, H. Meinert, R. Strebel and others and is related to FPm properties of groups. The _1(F) was obtained in [03]. Recently the general case of _m(F) and _m(F, Z) (homotopical and homological versions, respectively), m = 2, were described by R. Bieri, R. Geoghegan and D. Kochloukova. Here, we present the homotopical version of this result
Mestrado
Algebra
Mestre em Matemática
Tišerová, Tereza. "Možnosti využití metody Six Sigma v podniku." Master's thesis, Česká zemědělská univerzita v Praze, 2016. http://www.nusl.cz/ntk/nusl-257428.
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