La Metodologia Six Sigma | Il Processo di Six Sigma | Il Modello di Six Sigma

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Il modello di Six Sigma è un metodo altamente disciplinato che può aiutare le aziende a focalizzarsi sullo sviluppo e sulla fornitura di prodotti e servizi quasi perfetti. È basato sul lavoro statistico di Joseph Juran, un pioniere statunitense del quality management originario della Romania. La parola “Sigma„ è un lettera greca usata per un termine statistico che misura quanto un dato processo devia dalla perfezione (scarto quadratico medio). Se il numero dei sigma è più alto, si è più vicini alla perfezione. Un sigma non è molto buono; sei sigma definiscono soltanto 3.4 difetti su un milione. L'idea di fondo del Six Sigma è che, se potete misurare i vostri “difetti„ presenti nel processo, potete calcolare sistematicamente come eliminarli. Così potete quasi “azzerare i difetti„.

L'origine giapponese del Six Sigma può ancora essere vista dal sistema delle “Cinture„ che utilizza. Se siete novizi del Six Sigma ed andate ad un corso di formazione base, otterrete una cintura verde. Chiunque abbia la responsabilità di condurre un team di Six Sigma è denominato cintura nera. Infine c'è uno speciale gruppo d'elite denominato Master Black Belts [Maestri delle Cinture Nere] che ha la funzione di sorvegliare le Cinture Nere.

Cinque fasi del Six Sigma. Processo

Tipicamente, un processo di Six Sigma ha le seguenti cinque fasi:

1. Definizione. La prima fase di qualsiasi progetto di Six Sigma è quella di chiarire il problema e limitare lo scopo in modo tale da realizzare obiettivi misurabili nel giro di alcuni mesi. Dopodichè, si assembla un team per esaminare dettagliatamente il processo, per suggerire miglioramenti e per implementare questi suggerimenti. Nel mondo della produzione, i manager di progetto ed i loro garanti cominciano tipicamente definendo cosa costituisce un difetto per poi stabilire un insieme di obiettivi destinati a ridurre l'occorrenza di tali difetti.
2. Misurazione. Alla seconda fase di un progetto di Six Sigma, il team riunisce i dati e li prepara per un'analisi di alto livello.
3. Analisi. Una volta che si è tracciato e documentato un processo ed è stata verificata la qualità dei dati di supporto, il team di Six Sigma può cominciare l'analisi. I membri del team cominciano solitamente dall'identificazione dei modi in cui la gente non riesce ad agire come è necessario, o dei modi in cui la gente non riesce ad assicurare un controllo efficace in ogni fase.
4. Miglioramento. Suggerire, decidere e implementare i miglioramenti.
5. Controllo. Nella fase finale di un progetto di Six Sigma, il team crea i controlli. Questi permettono all'azienda di sostenere ed estendere i miglioramenti.

Discussioni Forum sul La Metodologia Six Sigma. Inizia un nuovo argomento Condividi le tue conoscenze o fai una domanda   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 ... 26   8 commenti 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 Caus... 18   35 commenti Focus of Six Sigma: The 6 Rights Six Sigma management can focus on following 6 Right (Rights): - Right Support - Right Project - Right Roa... 16   1 commenti Statistical Process Control (SPC) According to many, Six Sigma is based on Statistical Process Control (SPC), a method of visually monitoring production p... 14   4 commenti Is Six Sigma Enough? (To Improve the Quality Level of an Organization...) In order to improve a process, or to get a new standard or higher quality level in an organization, is 6 Sigma a good ap... 14   10 commenti Six Sigma for Marketing Six Sigma for Marketing (SSFM) is the newest Six Sigma variant. SSFM links interdependencies of strategic marketing... 13   1 commenti Add Standardization to DMAIC Phases in Six Sigma (DMAICS) In my experience I implemented the Six Sigma process following 6 instead of just 5 phases. The first five are the classi... 12   2 commenti Six Sigma DMAIC and DMADV Two Six Sigma sub-methodologies are called: DMAIC - Define, Measure, Analyze, Improve and Control, and DMADV -... 12   3 commenti Six Sigma in Medical Transcription How can Six Sigma be used in the field of medical transcription? What are all the gradients that need to be worked on in... 11   4 commenti Differences Between Six Sigma and TQM Although invented at Motorola, Six Sigma has been perfected at General Electric. GE is truly the home of Six Sigma. The ... 11   Evaluating Six Sigma Project Leaders How can I evaluate the talent of Six Sigma project leaders (presentation skill, answering, strategic thinking, and so on... 9   2 commenti Disadvantages of Lean Six Sigma. Drawbacks Hello! I am a student and I am trying to investigate why not every company is willing to implement Lean Six Sigma (LSS) ... 9   1 commenti Quality Lessons in Dealing with Contractors In the last 2 years I learned the following lessons working with Home Remodeling contractors. Lesson One: Be carefu... 8   1 commenti Six Sigma Manufacturing Example Businesses who are not very active in quality management most of the time have a process quality from 2 or 3 sigma. This... 8   Best Practices Lean Six Sigma in Social Care I have been using Lean Six Sigma (I'm a Black belt) in Adult Social Care in the UK and to my knowledge I am the only per... 8   2 commenti Six Sigma for Retail What is best way to measure defects in a retail business in order to improve efficiency?... 7   5 commenti Six Sigma In Inbound Call Center How can Six Sigma be used in an inbound call center? What are the basic parameters to be defined?... 6   5 commenti 6 Sigma Timeframe/Period Hi..., I have a concern regarding the execution of 6 sigma... When a business has to move from one sigma level to anothe... 5   1 commenti Six Sigma in Passengers Handling How can Six Sigma be applied to passengers handling services in air transportation at an airport?... 5   4 commenti Six Sigma Black Belt Certification I would like to know to what educational degree one can compare a Lean Six Sigma (L6S) Blackbelt certification? Thanks f... 5   5 commenti Next Step after Voice Of Processes have been Defined? We have defined all the Voice Of Processes for our 6Ϭ Lean Manufacturing project. What should be our next ste... 4   1 commenti 7 Key Principles of Six Sigma In brief, Six Sigma is a methodology that ensures quality processes are followed every time to reduce variations. <... 4   Organizational Development + Six Sigma or Lean Have any of you integrated tools from Organizational Development with the use of Lean and Six Sigma. I would be interest... 3   4 commenti Should Six Sigma start after Lean Implementation? My perception to Six Sigma is that it should start after Lean Implementation, at least basic (Stability Phase and Contin... 3   1 commenti Good Practitioner Books on Lean - Six Sigma, S&OP? Hi all, short question, currently I am working in a pure logistics field but would like to develop my supply chain knowl... 3   1 commenti Lean 6 Sigma in Laboratories Hello, I want to know about Lean 6 Sigma in as I am laboratory supervisor. How can I use this approach to reach to high... 2   1 commenti

Migliori Pratiche Gli argomenti più votati su La Metodologia Six Sigma. Qui troverai le idee più preziose e suggerimenti pratici. 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... 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) c... 57   2 commenti Implementing Six Sigma: Roles The following names (some are from martial arts) are used for Six Sigma professional roles: Sponsor - Senior execut... 38   5 commenti Sustaining Momentum of Process Improvement over Time Improving business processes using methods like Lean, Six Sigma and Agile often works well initially, however quite ofte... 15   2 commenti 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... 13   7 commenti 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)? ... 13   7 commenti 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 m... 12   4 commenti Evaluating Six Sigma Projects How can I evaluate the quality of 6 Sigma projects (logical think, creative, right tools, effectiveness and so on). ... 12   4 commenti Six Sigma Effectiveness Please, can someone evaluate the effectiveness of Six Sigma process improvement methodology.... 11   7 commenti Hypothesis Testing in DMAIC Projects Is hypothesis testing a must in DMAIC projects? Why (not)?... 11   10 commenti

Consigli degli Esperti Approfondimenti avanzati sul Six Sigma (Inglese). Qui troverai consigli professionali di esperti. 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...

Fonti di Informazione Varie fonti di informazioni su La Metodologia Six Sigma. Qui troverai powerpoint, video, notizie, ecc. da utilizzare nelle tue lezioni e seminari. 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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