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Lean Six Sigma Green Belt Study Guide

Name: ____________________________ Print this guide double sided and bind it for a booklet feel.

Letter from the President

First, let me congratulate you for pursing your Lean Six Sigma Green Belt certification and welcome to the American Association for Lean Six Sigma Certification (AALSSC). Obtaining a Lean Six Sigma certification is one of the most rewarding and valuable professional accomplishments. You will feel an increase in self-confidence, more capable when leading people and problem solving abilities well above your peers. The professional opportunities for a Lean Six Sigma Green Belt are vast and across all industries. This is an exciting time for Lean Six Sigma professionals and I welcome you to the community. The amount of knowledge required for an AALSSC certification is extensive, but not overwhelming. You can do it! The core tenants of AALSSC is the certifications must be relevant and attainable. By focusing on relevance some areas of study deemed not relevant enough are removed – making the exam more attainable. As a certified Lean Six Sigma Green Belt you will be expected to effectively facilitate teams, be a process improvement specialist, and a problem solving expert. The exam tests your knowledge, skills and abilities across these focus areas. This is your study guide, treat it as such. Write your name on it, complete it using your words and follow the concepts outlined. By writing you will retain the information and make this study guide a useful part of your reference library. Plus, this study guide can be used when taking an AALSSC Green Belt certification exam. Good luck and welcome to AALSSC – your road to success.

Erik Christensen Mr. Erik Christensen AALSSC President

Table of Contents Overview Continuous Improvement Lean Six Sigma Certifications Fundamentals every Green Belt must know Quality and Value Gemba and Kaizen Change management and metrics Primary impact areas of Green Belts Team Facilitation Stages of team development Facilitation and decision making tools Lean Six Sigma events and team members Lean Principles of Lean 8 Wastes of Lean Six Sigma DMAIC and Project charter Problem solving Problem solving tools Root Cause Analysis Process Improvement See the process Improve the process - Lean Six Sigma countermeasures Sustain improvements - audits

Continuous Improvement Lean Six Sigma is the combining of two methodologies – Lean and Six Sigma; which fall under a larger category of “Continuous Improvement”. What is continuous improvement and what other methodologies fall under it? From which methodology did Lean and Six Sigma stem from?

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Lean and Six Sigma Concept: Lean Six Sigma combines the process improvement benefits of Lean with the statistical process control benefits of Six Sigma. It takes advantage of the "value--added" focus of Lean while maintaining statistical tools of Six Sigma. What other definitions of Lean Six Sigma did you find? Which companies first started Lean and Six Sigma and when?

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Certifications Concept: Identify individual ability to implement Lean Six Sigma - the most relevant, useful, and valuable Lean Six Sigma certifications are Green, Black and Master Black. All other certifications have diminished return on investment and therefore not offered by AALSSC.

MBB

Experienced Black Belt with ability to lead organization through an entire transformation

Black Belt

Leading strategic level projects/kaizen events and facilitating strategic planning sessions

Green Belt

Leading tactical level projects/kaizen events at the front line

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Quality and Value Concepts: Value: What customers are willing to pay for. Quality: Meeting or exceeding customer expectations. How are quality and customer satisfaction related? Who defines quality? Research all you can on quality and value.

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Gemba and Kaizen Gemba: The place of actual work. Kaizen: Continuous Betterment (Improvement). What is the deeper meaning behind both of these concepts? What actions are managers expected to take based on these concepts? How do these concepts shape organizational culture?

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Change Management Concept: Improving processes requires people to change how or what they do, any change in work requires some level of change management. Q x A = I : The quality of the solution multiplied by the acceptance of the people who have to implement the solution equals the impact of that solution. How does this formula apply to process improvement? Have you ever experienced a time when a good solution was not fully implement due to resistance by people? What other terms are used to describe the challenge of having people be part of the solution, rather than part of the resistance?

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Metrics Concept: There is a need to measure improvements in order to claim an improvement. Metrics - Quantifiable measures that can assess the performance of a process. Purpose of a metric is to drive behavior. Core four metrics are: Cost, quality, delivery, and safety What are the types of metrics? How can a green belt use metrics to accomplish goals? What happened if we sacrifice one metric for another? What dysfunctional behaviors have you seen based on how the individual was being measured, graded or promoted? How can metrics be used in continuous improvement?

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Areas of Impact Concept: Green belts impact is felt the strongest across four main areas of the organization. 1) Cost of Poor Quality (COPQ) – all the cost related to not producing to customer requirements (across core four metrics). In your experiences what impacts (costs) have you seen from errors, mistakes or defects? What are the obvious costs and hidden costs?

My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 2) Opportunity losses – By spending resources to respond to and fix defects the company is not exploring new ways to ___________________________________________________________________________ satisfy the customer.

_______________________________________ Research and explain the Kano Model? What are the key words used in the Kano model? Notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

Areas of Impact (cont) 3) Employee Morale - Lean Six Sigma is founded on the core concept of respect for people. How is employee morale effected by work processes? What impact does morale have on operations? What experiences have you had with morale effecting quality?

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Team Facilitation Concept: Facilitators contribute structure and process to interactions so groups are able to function effectively and make high quality decisions. To be an effective facilitator one must begin by believing the comments below:    

People are intelligent, capable and want to do the right thing Groups can make better decisions than any one person can make alone Everyone’s opinion is of equal value; regardless of rank or position People are more committed to the ideas and plans that they have helped to create

How do facilitators help with change management? What is the primary focus of facilitators as opposed to other team members? Research facilitation and write all the key points below.

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Stages of team development Concept: Groups of people go through stages as they transform into a team. What are the stages of team development? Describe how team members act during each stage. Describe facilitator strategies during each stage.

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Facilitator tools Concept: Facilitators use various tools and strategies to help team’s achieve goals. Facilitators use different tools depending on the situation. Tools include open-ended questions, close-ended questions, probing questions, repeating back, summarizing, force field analysis, and active listening. Research and describe the common facilitator tools listed above.

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Group Decision making tools Concept: Facilitators and teams need decision making tools because of the complexity or difficulty of decision to be made. Phase I – Generate list of possible ideas or solutions. Tool: Brainstorming – fast paced idea generation. What are the various methods of brainstorming? What are the rules of brainstorming?

My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Tool: Nominal Group Technique – focused idea generation. ___________________________________________________________________________ What is the common method for NGT? Explain what it is and how to use it below. ___________________________________________________________________________

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Group Decision Making Tools (cont) Phase II – Organize and narrow the ideas or solutions. Tool: Affinity Diagram – categorize like ideas. Describe affinity diagram and when it is normally accomplished.

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Group Decision Making Tools (cont) Phase II (cont) – Organize and narrow the ideas or solutions. Tool: Advocate – allowing an individual to present a position . When it is normally accomplished.

My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Tool: Multi-voting – identify popular ideas and ideas to be removed from consideration. ___________________________________________________________________________ Describe multi-voting and when it is normally used. ___________________________________________________________________________

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Group Decision Making tools (cont) Phase III – Evaluate and decide on way forward. Tool: Criteria Rating – rank ideas based on criteria to help with selection. Describe when criteria ranking is normally used and how to use it.

My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Tool: Straw Poll – informal vote. ___________________________________________________________________________ Describe how to conduct a straw poll and when it is normally used. ___________________________________________________________________________

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Group Decision Making tools (cont) Tool: Consensus voting – determine if all team members either agree or can live with decision. Describe how to use consensus voting.

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Lean Six Sigma Events and Project Team Members Concept: Bring people together to form teams and accomplish a specific objective. Point Kaizen – 1-2 day events with team leaders span of control. Kaizen Blitz – 4-5 day event that goes across multiple function areas. Project – 3-6 month event focused on multiple business areas. What are some other names for lean six sigma events? What experiences have you had with events?

My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Champion: Person with organizational authority ___________________________________________________________________________ Process Owner: Person with authority and accountability for the process Facilitator: Manage meeting(s) and enables change ___________________________________________________________________________ Team Leader: Leads team thru process – normally a SME who is accountable for specific RIE results Team members: cross functional experts brought together to solve a specific problem

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What are the responsibilities of each team member? Who selects team members? Where is the list of team members __________________________________________________________________________ documented?

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Lean Lean is a systematic approach to identify waste, focus activities on eliminating it, and maximize (or make available) resources to satisfy other requirements. Uses the plan, do, check, act cycle for continuous improvement (PDCA). Research and describe the how the word “Lean” was developed, what Lean is truly describing and the PDCA cycle.

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Principles of Lean 1. Define value from the standpoint of the end customer. 2. Map the value stream. 3. Create flow by making the steps occur in tight sequence. 4. Let the customers pull value from the process by keeping pace with the rate of customer demand. 5. Continuously improve and strive for the “Ideal” process. Further research and understand the principles of Lean.

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8 Wastes of Lean Understand value adding vs. non-value adding steps in a process. Transportation: Movement of material, information, people or equipment that does not add value Inventory: More information, projects, material on hand than is needed right now Motion: Movements of people that does not add value Waiting: Idle time created when material, information, people, or equipment is not ready Over-Production: Generating more than is needed right now Over-Processing: Effort that creates no value from the customer viewpoint Defects: Work that contains errors, re-work, mistakes or lacks something necessary Under-Utilization: Any failure to use the time and talents of people Research and gain a complete understanding of the 8 wastes.

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Six Sigma Sigma σ is a statistical unit of measure which reflects process capability. Follows DMAIC cycle for project execution. Focuses efforts following the transfer function Y=f(x). Who first developed six sigma as an operating philosophy? What exactly is six sigma? What exactly is DMAIC? What exactly is the transfer function and why does it matter? Research and gain a complete understanding of six sigma.

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Six Sigma (cont) My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ v

Project or Event Documentation Concept: When executing a Lean Six Sigma event there is a need for documentation Charter: Official document that authorizes project/kaizen event to move forward. A3: Single page document organized to emphasis cause/effect, uses data for objectivity, forces brevity and shows alignment between effort and objective. Research about charters and charter formats. Research about A3 thinking and various types of A3s.

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Problem Solving tools Concept: When attempting to solve a problem there are proven tools and methods which increase chance of success. Tool: Problem Statement - a clear, concise statement of what’s wrong. Research and practice writing problems statements. What must a problem statement include? What cannot be included in a problem statement?

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Tool: SIPOC – provides project scope.

___________________________________________________________________________ Research and practice developing SIPOCs.

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Problem Solving tools (cont) Tool: SMART goal setting – used a filter to goals are valid. Research and practice analyzing goals using SMART criteria.

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Research and practice completing a SWOT analysis.

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Root cause analysis Concept: To prevent problem reoccurrence solutions must address the root of the problem. Two types: statistical (analyzing data) and non-statistical (using the knowledge and wisdom of people). Tool: Cause and Effect Diagram - provide structure to brainstorming. Research and practice completing a cause and effect diagram (fishbone diagram).

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Root cause analysis (cont) Tool: Run Chart - Monitor the behavior of a variable over time. Research and practice run chart development.

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Tool: Pareto Chart – find the few causes that have the greatest impact (aka the 80/20 principle).

___________________________________________________________________________ Research and practice developing a Pareto chart.

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Root cause analysis (cont) Tool: Histogram – visual display of how often something happens. Research and practice developing a Histogram.

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Tool: 5 Whys analysis – Ask “why did that occur” five times and you will find the root cause.

___________________________________________________________________________ Research and developed complete understanding of 5 whys analysis and its pitfalls.

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Root cause analysis (cont) Tool: Scatter Diagram – determines relationship between two variables. Research and practice developing scatter diagram.

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Risk Analysis Concept: plan for problems that have not yet occurred. Tool: Failure Mode and Effects Analysis (FMEA) – quantifiably measure and compare risk, then determine what course of action to take for each. Research and practice developing a FMEA to include calculating risk priority number (RPN).

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See and analyze the process Concept: Teams must be able to see and analyze a process before they can improve it. Tool: Process walk – see first-hand how processes are being accomplished. Research and practice doing a process walk. Understand the data that is expected to be gathered. What are some best practices when doing a process walk?

My notes: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Tool: Value stream map – visual display of all the actions taken to bring a product or service to the customer. ___________________________________________________________________________ Three types: Current state, Ideal state and future state. ___________________________________________________________________________ Research and describe the three types of value stream maps, their properties, common VSM symbols and method for completion. Practice completing one on your own.

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See and analyze the process (cont) Tool: Spaghetti diagram – visual display of motion or transportation waste. Research and practice developing a spaghetti diagram.

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See and analyze the process (cont) Tool: Waste analysis – find the waste in the process. Tool: Timing the value stream – capture real data for how long operations take.     

Lead Time – total time to transform input to output Cycle Time – a measure of throughput Touch Time – time spend actually working on item Takt Time: Determines rate of production Work in Process (WIP) – in-process inventory (no longer raw material, not finished goods)

Research and fully define and understand each time listed and how to calculate. Fully comprehend the problems related to WIP.

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Develop improvement plan Concept: To make the change from current state to future state value stream maps people have to take action. These actions are prioritized and documented on an action plan. Tools: PICK chart – used to prioritize the action plan. Research PICK charts and decision matrix for action plan development. Research best practices and formats of actions plans. Be able to identify items that must be in an action plan and items that cannot be in an action plan.

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Lean Six Sigma tools Concept: Use proven best practices for continuous improvement. Tool: Standard Work - agreed upon set of work procedures and best practices that document the interaction of people, materials and machines. Inconsistent process = inconsistent results; Consistent process = expected results. Research and develop a deep understanding of standard work.

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Lean Six Sigma tools (cont.) Tool: 5S – organize the physical work place for process excellence. Sort, straighten shine, standardize, sustain. Research and learn about 5S, detailed definitions for each phase and actions taken during each phase of a 5S event. Know about red tags and red square areas. Understand the concept of point of use (POU) and supermarkets.

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Lean Six Sigma tools (cont.) Tool: Visual Management – make the workplace visual using colors, shapes, lines, etc. Two components: Visual display and visual control. Research all aspects of visual management and be able to distinguish between display and control.

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Lean Six Sigma tools (cont.) Tool: Mistake Proofing (Poke-Yoke) – use a 100% inspection device to automatically detect errors so they are passed to the next stage of the operation.

Research and understand Poke-Yoke devices, the method for implementing and expected benefits.

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Lean Six Sigma tools (cont.) Tool: Quick changeover (SMED) – reduce the amount of time a machine is off when making a change. Reduces urge to run large batches and provides a competitive advantage. Research and understand why quick changeover is commonly called SMED, understand the two types of steps performed in a changeover sequence, and the expected benefits.

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Lean Six Sigma tools (cont.) Tool: Heijunka – level the work to reduce system strain and enable “pull” production. Research Heijunka and load leveling methods.

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Researched cellular designs and methods for creation.

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Sustainment Concept: Prevent regression and commit to continuous improvement. Tool: Audits - To sustain improvements leadership and audits are necessary. What specific measures can be included for sustainment controls? What if leadership appears not to focus on sustainment?

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Sustainment (cont.) Tool: Replication: repeat success for maximum impact across organization. How can we replicate success given the Q x A = I? What challenges might we face? Can the parking lot be a source of continuous improvement ideas? Research and understand the RACI matrix for communications?

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