Six Sigma-methodologie | Six Sigma-model | Six Sigma-aanpak

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Het Six Sigma model is een zeer gedisciplineerde aanpak die bedrijven kan helpen om zich te concentreren op het ontwikkelen en het leveren van vrijwel volmaakte producten en diensten. Het is gebaseerd op het statistische werk van Joseph Juran, een Amerikaanse pionier van Roemeense origine op het gebied van kwaliteitsmanagement. Het woord "Sigma" is een Grieks letterteken dat voor een statistiekterm wordt gebruikt die meet hoe ver een bepaald proces van perfectie afwijkt (de standaarddeviatie). Als het sigma-getal hoger is, bent u dichter bij perfectie. Één sigma is niet erg goed; zes sigma wordt gedefinieerd als slechts 3.4 tekorten per miljoen. Het centrale idee achter Six Sigma is dat als u kunt meten hoeveel "defecten" u in een proces hebt, u systematisch kunt uitzoeken hoe u hen kunt elimineren. Aldus kunt u bijna tot "zero defects" komen.

De Japanse oorsprong van Six Sigma kan nog steeds worden herkend aan het systeem van "banden" welke het gebruikt. Als u net begint met Six Sigma en u op een basisopleiding gaat, krijgt u een groene band. Iedereen die de verantwoordelijkheid heeft om een team van Six Sigma te leiden wordt een zwarte band genoemd. Tot slot is er een speciale elitegroep die Meester Zwarte Banden worden genoemd die de Zwarte banden controleren.

Vijf Stappen in Six Sigma. Proces

Typisch, kent een Six Sigma proces de volgende vijf stadia:

1. Definitie. De eerste stap in ieder Six Sigma project is het verduidelijken van het probleem, en zijn werkingsgebied zodanig te versmallen dat meetbare doelstellingen kunnen worden bereikt binnen een paar maanden . Dan wordt een team samengesteld om het proces in detail te onderzoeken, verbeteringen te suggereren, en die aanbevelingen ten uitvoer te leggen. In de productiewereld, beginnen projectmanagers en hun sponsors typisch met het bepalen van wat een defect is, en stellen vervolgens een reeks doelstellingen op die ontworpen zijn om het voorkomen van dergelijke defecten te verminderen.
2. Meting. In de tweede stap van een Six Sigma project, verzamelt het team gegevens en bereidt het een analyse voor op hoog niveau.
3. Analyse. Zodra een proces in kaart is gebracht en gedocumenteerd, en de kwaliteit van de harde ondersteunende gegevens is geverifiëerd, kan het Six Sigma team met de analyse beginnen. De teamleden beginnen gewoonlijk met het identificeren van de manieren waarop mensen er niet in slagen om te handelen zoals nodig is, of door de manieren te identificeren waarop de mensen er niet in slagen om effectieve controle te waarborgen in elk stadium.
4. Verbetering. Adviseer, beslis en voer de verbeteringen uit.
5. Controle. In het laatste stadium van een Six Sigma project, creëert het team controles. Deze stellen het bedrijf in staat om de verbeteringen vol te houden en uit te breiden.

Forum Forumdiscussies over de Six Sigma-methodologie. Hieronder kunt u een vraag stellen over dit onderwerp, uw ervaringen delen, een nieuwe ontwikkeling melden, of iets toelichten. Begin een nieuw onderwerp over Six Sigma-methodologie Deel hier uw kennis (of stel een vraag)   Six Sigma in an R&D context Is it possible to use Six Sigma to improve the quality of R&D processes? Or do R&D activities naturally defy systematic improvement efforts?... 27   8 reacties The 5 x Why Method (The 5 Whys) DESCRIPTION OF THE 5 WHY METHOD The "5 x why" method has been developed by Toyota to perform an iterative Root Cause Analysis of production-related problems. 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Best Practices De best beoordeelde onderwerpen over de Six Sigma-methodologie. Hier vindt u de meest waardevolle ideeën en praktische suggesties. 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 reacties 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 reacties 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 reacties 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 reacties 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... 13   7 reacties 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 reacties 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 reacties Six Sigma Effectiveness Please, can someone evaluate the effectiveness of Six Sigma process improvement methodology.... 11   7 reacties Hypothesis Testing in DMAIC Projects Is hypothesis testing a must in DMAIC projects? Why (not)?... 11   10 reacties

Expert Tips Geavanceerde inzichten over de Six Sigma (Engels). Hier vindt u professionele adviezen van deskundigen. 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...

Informatiebronnen Diverse informatiebronnen betreffende de Six Sigma-methodologie. Hier vindt u powerpoints, video's, nieuws etc. om te gebruiken in uw eigen lezingen en 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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