Sex Sigma-metodologi | Sex Sigma-process | Sex Sigma-modell

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Vad är Sex Sigma?

Sex Sigma är en kvalitetsledningsmetodologi som förser företag med verktyg för att förbättra kapaciteten i deras affärsprocesser. Denna ökning i prestation och minskning i processvariationer leder till defekt minskning och förbättring av vinster, anställdas moral och kvaliteten på produkten. Detta är ett kvalitetsmått och förbättringsprogram som uppfanns av Mikel Harry och Motorola. Den fokuserar på kontrollen av en process tills den punkt då sex sigma (standardavviker) från en mittlinje eller 3.4 defekter per miljon objekt. Detta inkluderar identifierbara faktorer som är kritiska för kvaliteten som beslutats av kunden. Den minskar på processvariationer- och förbättrar kapaciteter, förhöjer stabilitet och designsystem för att stötta målet med sex sigma.

Sex Sigma modellen är ett mycket disciplinerat tillvägagångssätt som kan hjälpa företag att fokusera på att utveckla och att leverera nästan perfekta produkter och tjänster. Den baseras på det statistiska arbetet av Joseph Juran, en rumänskt-född och amerikansk-banbrytare av kvalitetsledning. Uttrycket ”Sigma” är en grekisk symbol använt för en statistisk term som mäter hur långt en given process avviker från perfektion (standardavvikelse). Om sigma numret är större närmar du dig perfektion. En sigma av 1 är inte tillräckligt bra; sex sigma definieras som endast 3.4 defekter per miljon. Den centrala idén bakom Sex Sigma är att, om du kan mäta hur många ”defekter” du har i en process, kan du systematiskt räkna ut hur du kan avlägsna dem. Således kan du nästan komma fram till en ”nolltolerans av fel”.

Det japanska ursprunget till Sex Sigma kan fortfarande ses som systemet med olika ”bälten” som det använder. Om du är ny inför Sex Sigma, och du går på en grundläggande träning, då får du ett grönt bälte. Någon, som har ansvaret för att leda ett Six Sigma lag, kallas svart bältare. Slutligen så finns det en speciell elit som kallas "Master Black"gruppen som leder och hanterar de med svarta bälten.

De Fem stegen i Sex Sigma. Process

En typisk Sex Sigma process har följande fem steg:

1. Definition. Det första steget i alla Six Sigma projekt är att klargöra problemet och att begränsa dess omfattning på ett sådant sätt att mätbara mål kan uppnås inom ett fåtal månader. Därefter samlas ett lag för att undersöka processen mer specifikt, föreslå förbättringar och genomföra dessa rekommendationer. I den tillverkande världen brukar projektchefer och deras sponsorer typiskt börja med att definiera vad som utgör en defekt och upprättar därefter en uppsättning av målsättningar som skapas för att minska risken för att defekter skulle uppstå igen.
2. Mätning. I det andra steget av ett Sex Sigma projekt samlar laget in data och förbereder den för en analys på hög nivå.
3. Analys. Så fort en process har kartlagts och dokumenterats och kvaliteten på de understödjande och tillförlitliga datat har verifierats, kan Sex Sigma laget påbörja analysen. Lagmedlemmarna startar vanligtvis genom att identifiera de sätt där personer har misslyckats agera på det sätt som egentligen behövdes, eller genom att identifiera på vilket sätt  som personer misslyckas för att tillse att man uppnår en effektfull kontroll i varje steg.
4. Förbättring. Rekommendera, avgör och genomföra förbättringar.
5. Kontrollera. I slutskedet av ett Six Sigma projekt  skapar laget kontroller. Dessa möjliggör för företaget att bibehålla och fördjupa förbättringarna.

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Best Practices De bästa, högst rankade ämnena om Sex Sigma-metodologi. Här hittar du de mest värdefulla idéerna och praktiska förslagen. 🥇 3 Additional Six Sigma Levels Besides the Sigma levels 1 to 6, we can actually also distinguish between 3 other levels of using Six SIgma: A. Use Six Sigma as a statistical measurement unit (comparable to degrees or dollars) B. ... 81   🥈 The Basis of Six Sigma? Statistics and Discipline Many of the tools of Six Sigma (and the concept of lean manufacturing with which Six Sigma is most closely identified) can be found in statistical process control, total quality management, statistics... 62   2 kommentarer 🥉 Implementing Six Sigma: Roles The following names (some are from martial arts) are used for Six Sigma professional roles: Sponsor - Senior executive who sponsors the overall Six Sigma Initiative. Leader - Senior-level executive ... 37   5 kommentarer Sustaining Momentum of Process Improvement over Time Improving business processes using methods like Lean, Six Sigma and Agile often works well initially, however quite often the gains fade very quickly, according to recent research by Holweg and all. ... 15   2 kommentarer The Cost of Poor Quality: Tools for Effective Control & Reduction Which Six Sigma tools are effective to determine and reduce the cost of poor quality (in the manufacturing sector)? Since there are lot of quality tools used in industries, selecting correct, effect... 14   7 kommentarer Tools for Finding Root Cause in 6 Sigma Which tool is preferable in Six Sigma methodology to detect or find the root cause from special cause variation and then solve accordingly? And how to differentiate if the tool is suitable to use for ... 13   7 kommentarer Preparing Six Sigma: Requirements In order for Six Sigma to be successful in an organisation, the concept should be embraced from the grass roots to top management. Involvement of all stakeholders should be emphasised, as data is gen... 12   4 kommentarer Evaluating Six Sigma Projects How can I evaluate the quality of 6 Sigma projects (logical think, creative, right tools, effectiveness and so on). What grading and evaluation of the factors you recommend?... 12   4 kommentarer Six Sigma Effectiveness Please, can someone evaluate the effectiveness of Six Sigma process improvement methodology.... 11   7 kommentarer Hypothesis Testing in DMAIC Projects Is hypothesis testing a must in DMAIC projects? Why (not)?... 11   10 kommentarer

Experttips Avancerad insikt om Six Sigma (Engelsk). Här hittar du professionella råd från experter. Rådgivningstips Undervisningstips Praktiska Implementeringstips Six Sigma Implementation Principles Implementing Six Sigma Succesfully In the article 'Six Sigma - the route to business excellence' (Management Services, Winter 2005), John Morgan argues tha... Six Sigma Approaches / Steps Compared DMAIC, DMADOV, DMAEV, DABTL Commonly Six Sigma projects focus on re-designing processes and systems and improving performance of existing systems. W... Good Six Sigma Project Management Six Sigma Project Characteristics In their article 'Six Sigma in Service Organizations' (International Journal of Quality & Reliability Management, Vol. 2... Hypothesis Testing in Lean Six Sigma Explained SS Hypothesis Testing How to do simple hypothesis testing in lean six sigma? How to simplify the basic roadmap in a hypothesis test? Using th... 6 Management Responsibilities in 6 Sigma Six Sigma Implementation, Best Practices The six imperative responsibilities top managers must take on in the early stages of a Six Sigma process: 1. Develop a ... Human Sigma Improving Employee-Customer Encounters Although Six Sigma is an extremely powerful tool in manufacturing contexts, it falls short when it comes to the employee... Six Sigma in Service Organizations Benefits According to Jiju Antony ('Six Sigma for Service Processes', Business Process Management Journal, Vol. 12, No. 2, 2005),... How Six Sigma Supports TQM TQM, Six Sigma Forrest B.Green suggests in a paper called: Six-Sigma and the Revival of TQM that Total Quality Management (TQM) is unde... Six Sigma Lessons Learned Process Improvement of Six Sigma Projects Although six sigma programs typically start of well, they all too often fail to have a lasting impact as participants gr... Six Sigma in Service Organizations Challenges and Difficulties Although the adoption of a Six Sigma business strategy in service organizations can lead to considerable benefits, follo... 3 Critical Success Factors for Six Sigma Projects Getting results out of a 6 Sigma project 3 Critical Success Factors of a Six Sigma project are: 1 Executive Engagement: - Support consistently the organization ... 3 Six Sigma Variants Differences in Six Sigma Approaches Behind the success of 3 major companies who innovatively applied Six Sigma in Supply Chain Management there are differen... Measurement Systems Analysis (MSA) Testing Measurement Systems, Improving Measurement Systems, Assessing Measurement Systems WHAT IS MEASUREMENT SYSTEMS ANALYSIS (MSA)? MSA is a type of experiment whereby you measure the same item or object rep... Generic Six Sigma Project Ideas Identifying LSS Projects Here are some general 6 Sigma project ideas: • Reduce expenses at… • Reduce scrap… • Reduce downtimes… or increase up... Design for Six Sigma Supply Chain & Quality In addition to the two common key methodologies: DMAIC and DMADV of Six Sigma, there is another separate approach which ... How to Make Value Stream Map? Tips Making a Value Stream Map, Creating a Value Stream Map Hi, here's a great explaining youtube clip on tricks for making a VSM. Enjoy!... DMAIC Approach is Sequential, But... Six Sigma Implementation The DMAIC approach is designed to allow for flexibility and iterative work, if necessary. As more is learned through thi... The DMAIC Process Step by Step Example Six Sigma Implementation, DMAIC Process In order to better illustrate the DMAIC process, consider the case of a janitorial company that wants to boost the calib... Lean Six Sigma Programs Driving Innovation Based on an analysis of Caterpillar and other companies that used lean Six Sigma programs to drive broad-based innovatio... CCR and CTQ Six Sigma Method What Key Overall Requirements are there? Requirements come from the customer (VoC) and the business (VoB), depending on... Six Sigma Improvement Team Composition and Procedure Six Sigma Six Sigma teams should be multidisciplinary. The diversity of perspectives in the team — which includes someone with exp... Appropriate Sample Sizes in Six Sigma Six Sigma The first question faced by a statistical consultant, and frequently the last, is, “How many subjects (animals, units) d... Radical Innovations Assessing Your Level of Preparedness According to the article “Using a Lean Six Sigma Approach to Drive Innovation” by George Byrne, Dave Lubowe and Amy Blit... Control Charts and Control Limits Controlling the Process Elements of a Control Chart There are three main elements of a control chart 1. A control chart begins with a time ser...

Informationskällor Olika informationskällor om Sex Sigma-metodologi. Här hittar du powerpoints, videor, nyheter etc. som du kan använda i dina egna föreläsningar och workshops. Six Sigma Dictionary (250 terms) 6 Sigma Terms Short explanation of 250 six sigma terms. By Luis Garcia Guzman.... Great Truths about Six Sigma Introducing SIx Sigma Humorous introduction to Six Sigma with cartoons from various cartoonists.... Six Sigma Explanation Business Process Improvement Definition of “Six Sigma” Six Sigma Best Practice Implementation framework Key Ingredients for a Successful Six Sigma ... Lean Assessment Tool Lean / Six Sigma Assessment Spreadsheet calculates current and future Lean and Six Sigma scores based on scoring in 28 criteria. Generates Lean Over... Six Sigma Intro Introduction to SS Introduction presentation by lakhanpalv.... Y=f(x) + E DMAIC Project Control This document guides and helps you through the DMAIC process using the well known Six Sigma formula Y=f(x) + e.... Six Sigma Calculator Calculating DPM and PPM Determine the process performance in terms of Defects Per Million (DPM) or Parts Per Million (PPM).... Business Process Management and Improvement: Six Sigma, BPR and (R)Evolutionary Change Process Management, process Improvement, Business Process Reengineering, BPR, Six Sigma Presentation about process management, particularly process modeling simulation and design. The presentation focuses on ... SS Origins and Destinations Six Sigma and Sustainability Presentation by Prof. Rick Edgeman explains DMAIC, DFSS, the role of 6 Sigma in biophysical sustainability, environmenta... Introduction to Project Quality Management Quality Management, Project Quality Planning, Project Quality Assurance, Project Quality Control Presentation about Project Quality Management. A large part of the presentation is about Six Sigma as a quality manageme... Overview Six Sigma Six Sigma Method Presentation defines Six Sigma as a disciplined, data-driven approach and methodology for eliminating defects in any pro... 8 Wastes Assessment and 5S Analysis in Office Environments Lean, 5S , WASTE In the office environment, our work does not take place on our desks, but on our computers and in our digital networks. ... Six Sigma Demystified Powerpoint MEASURE – SIX SIGMA IMPROVEMENT METHODOLOGY A. Ask each Customer: What do you need from the service / product we provi... Using the Whys Method Six Sigma, Toyoda, Toyota, Lean Production, Root Cause Analysis To solve a problem effectively, you need to drill down through the symptoms to the underlying cause. Sakichi Toyoda, one... Plan for Every Part Lean Production, Parts Management, Value Stream Mapping, Continuous-flow Manufacturing Business Managers are making progress in realising flow as more they learn about VSM (Value Stream Mapping) and continuo... Jidoka Lean, HoT Japanese manufacturing techniques have had a major affect on the approaches taken in manufacturing and management in man... Continuous Sampling Planning Sampling The concept of continuous sampling planning originated in 1943 by Dodge. Known as CSP-1, continuous sampling is used whe... Battle of Champions in Performance Improvement: Six Sigma versus Lean Performance Improvement Lean Six Sigma While both Six Sigma and Lean focus on waste reduction as a key aim (recognizing waste comes in many forms), this is the... Six Sigma Diagram Quality Assurance Download and edit this 12manage PowerPoint graphic for limited personal, educational and business use. Republishing in ... Certifications from Various Accreditation Agencies Six Sigma Certifications The attachment gives an overview of existing Lean Six Sigma Certifications. When you want to find or become yourself a ... Errors in Hypothesis Testing Errors in Hypothesis Testing An article with example how we can circumvent errors in Hypothesis testing. Setting the value of α is not automati... A Guide to Control Charts Applying Control Charts, Types of Control Charts Control charts have two general uses in an improvement project. The most common application is as a tool to monitor proc... Rolled Throughput Yield Calculating Yield of a Process Rolled Throughput Yield allows us to expose the "hidden factory" by providing visibility into the yield of each process ... Sample Size Calculation Calculating Sample Size, Determining Sample Size The first question faced by a statistical consultant, and frequently the last, is: “How many subjects (animals, units) d... Design of Experiments (DOE) Designing Experiments, Designing Statistical Experiments Quality managers who understand how to apply statistical tools for Design of Experiments (DOE) are better able to suppor... Six Sigma Capability Studies Determining the Six Sigma Level For many years industries have used Cp, Cpk, Pp and Ppk as statistical measures of process quality capability. Some segm...

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