What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional applications Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 1 Manufacturing Systems • Lockheed Martin is a system designer and integrator of complex systems and services • Variation is the beast • Lean Six Sigma techniques are used to minimize the effects of waste and variation in our products and services • Data-based decision making © 2013 Lockheed Martin Corporation. All Rights Reserved Cp Cpk 2 What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional applications Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 3 Lean and Six Sigma: More Succinctly … Lean War against Waste Six Sigma War against Variation The Customer is the Final Victor! Used With Permission From Quality Council of Indiana (CSSBB Primer – 2007) © 2013 Lockheed Martin Corporation. All Rights Reserved 4 Lean Six Sigma Concept Eliminate Waste First, Then Drive Out Variation Waste Reduce Variation Don’t become proficient at processing waste – seek to eliminate it! Variation Reduction is Critical To Customer Satisfaction © 2013 Lockheed Martin Corporation. All Rights Reserved 5 Interaction of Lean and Six Sigma Rolled Throughput Yield = (Yield A) x (Yield B) x (Yield C) x (Yield D) x (Yield E) A B C D E By definition, Yield is a percentage - a value less than 1. When multiplying multiple numbers together (all less than 1), the overall product becomes smaller and smaller. Eliminating unnecessary process steps (B & D in this example), Rolled Throughput Yield automatically increases! Used With Permission From Quality Council of Indiana (CSSBB Primer – 2007) © 2013 Lockheed Martin Corporation. All Rights Reserved 6 Robust Designs and Processes Robust Designs and processes are insensitive to input variations: • Manufacturing variations. • Operating/Environmental factors. Processes and designs should be particularly robust to the following types of variations: • Variations you cannot control. • Unusually large or highly sensitive. © 2013 Lockheed Martin Corporation. All Rights Reserved 7 Parts That Do Not Exist … • • • • • • • • • Are always 100% reliable Never fail during operational use Do not require qualification testing Adds nothing to weight of product or system Adds nothing to product cost Cannot be rejected Do not require inventory or inspection Have no drawing or specification Etc. © 2013 Lockheed Martin Corporation. All Rights Reserved 8 Point of Presentation Traditional Method: Receive Parts From Supplier Form Parts Treat Parts Ready For Assembly TRIZ Inventive Principle 10: Perform, before it is needed, the required change of an object Point of Presentation: Treat Parts Ready For Assembly © 2013 Lockheed Martin Corporation. All Rights Reserved Parts and subassemblies instantly ready for assembly and system integration. Focus on Core Competency. 9 What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional applications Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 10 Value Definitions • • • Value-added activities Change in form, fit or function of a product or service The customer is willing to pay for Performed right the first time Non-value-added activities All other activities, which we call waste. This type of waste can (and should) be eliminated immediately. Customer not willing to pay for (Examples: Inspection, rework) Required non-value-added activities Activities causing no value to be created but which cannot be eliminated based on current technology or thinking/process © 2013 Lockheed Martin Corporation. All Rights Reserved 11 Forms of Waste • • • • • • • • Excessive inventory Unnecessary transportation Too many steps to complete a job (over-processing) Waiting/queue time Unnecessary motion Producing defects Producing too much or too soon (over-production) Injuries © 2013 Lockheed Martin Corporation. All Rights Reserved 12 Mistake Proofing • • • • • • Either makes it impossible to make a mistake or allows the mistake without allowing the defect Is not “operator-dependent” Eliminates the need for monitoring, process control Is key in the development of robust products and processes Eliminates variation – turns a variable into a constant Instrumental in achieving customer satisfaction © 2013 Lockheed Martin Corporation. All Rights Reserved 13 Robust Processes Question: Would You Rather Have … A. Highly Skilled and Experienced Subject Matter Experts + Competent Processes = Quality Product = Quality Product Or B. Competent Personnel + Robust Processes Preferred Method! Goal: Design your processes so that employees don’t have to be “on top of their game” in order to produce acceptable/high-quality product © 2013 Lockheed Martin Corporation. All Rights Reserved 14 What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional applications Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 15 Inventory Versus Flow Throughput = Money coming in! Inventory = Money stuck inside! Material should be moved one part at a time (ideally) at a rate determined by the needs of the customer Used With Permission From Quality Council of Indiana (CSSBB Primer – 2007) © 2013 Lockheed Martin Corporation. All Rights Reserved 16 Kanban • Kanban is a signal or trigger that identifies the need for replenishment of material for the next process step Typical Kanban Cards Kanban cards are used to regulate the flow of production and inventory Used With Permission From Quality Council of Indiana (CSSBB Primer – 2007) © 2013 Lockheed Martin Corporation. All Rights Reserved 17 The Heartbeat of Lean TAKT Time = Heartbeat of Customer Demand TAKT Time is the calculated time element related to Customer Demand. More specifically: TAKT Time = Available Operating Time Customer Demand Minutes Unit It is important to make sure that time units are consistent! © 2013 Lockheed Martin Corporation. All Rights Reserved 18 Concept of Bottleneck What is the Maximum Output From The Following System Per Hour? A B C 23 Units/Hour 17 Units/Hour 8 Units/Hour D 19 Units/Hour E 13 Units/Hour Answer: 8 Units Per Hour – Process Step C is the Bottleneck Used With Permission From Quality Council of Indiana (CSSBB Primer – 2007) © 2013 Lockheed Martin Corporation. All Rights Reserved 19 What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional applications Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 20 Paper Airplane Simulation © 2013 Lockheed Martin Corporation. All Rights Reserved 21 Paper Airplane Simulation (cont.) Characteristic Run Number 1 Lot Size 5 WIP 32 Total Run Time 7:15 Throughput (Lead) Time 6:32 Deliveries (To Customer) 18 Number of People 6 Space Productivity Quality Run Number 2 Run Number 3 4 Tables 0.42 12 Comments/Observations © 2013 Lockheed Martin Corporation. All Rights Reserved 22 What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional Applications Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 23 Hooray! We Improved the Process! Question: How do you know this to be the case? I Chart of Cycle Time Before Improvement 210 After Improvement 200 Cycle Time (Minutes) 190 180 170 160 150 UCL=145.4 140 _ X=130.7 130 120 LCL=116.0 1 7 13 19 25 31 37 Sequence 43 49 55 Show Me The Data! © 2013 Lockheed Martin Corporation. All Rights Reserved 24 Process Control And Capability Commute Times Check For Control First, Then Capability! © 2013 Lockheed Martin Corporation. All Rights Reserved 25 Comparison of Families of Variation Compare Means Compare Variation Shift in Mean, Change in Variation, or Both! © 2013 Lockheed Martin Corporation. All Rights Reserved 26 Is There Really a Difference? Suppose You Have Two Sets of Sample Data: • Data Set A • Data Set B XA XB Let’s try a typical approach - use average values: Has there been an improvement? Yes. And you want to know if an improvement has been made. How would you determine this? Number Line 0 Let’s try a typical approach - use average values: Has there been an improvement? No, not really. Number Line 0 Bottom line: You Must Look at the Mean AND the Variation to determine if an improvement has been made! © 2013 Lockheed Martin Corporation. All Rights Reserved Zone of Mixed Results! (conflicting results in this area) 27 Conflict Resolution Matrix Collaborating “win-win” Assertive Price Lower Price To Customer; Lower Cost To Supplier; Higher Profit For Company Competing Compromising After Before Lean Six Sigma Lean Six Sigma Uncooperative Cooperative Avoiding Accommodating Unassertive Thomas-Kilmann Conflict Mode Instrument (1975) Model [Used With Permission: Quality Council of Indiana ] © 2013 Lockheed Martin Corporation. All Rights Reserved 28 What We’ll Cover … • • • • • • • Background information: Lockheed Martin Lean Six Sigma Fundamental concepts: Forms of waste/value definitions Kanban definition Simulation Additional applications using data mined from ERP/MRP System Wrap-up © 2013 Lockheed Martin Corporation. All Rights Reserved 29 7 Key Points to Take Home • • • • • • • Keep in mind your core competencies and apply accordingly Lean – War against waste Six Sigma – War against variation Developing robust processes is key to minimizing variation and improving product quality Kanban concept: Flow and pull can help improve process efficiencies (reduce cycle time, WIP and waste) Data extracts from your ERP/MRP system used in conjunction with Six Sigma analytical tools can give you very powerful insight into your business performance Who defines value? The customer. © 2013 Lockheed Martin Corporation. All Rights Reserved 30 Additional Resources • • • • www.lean.org/whatslean Lean Enterprise Institute www.triz-journal.com/whatistriz.htm TRIZJournal, “What Is TRIZ?” (The TRIZJournal). Theory of Inventive Problem Solving otherwise known as TRIZ (pronounced “trees”) http://asq.org/index.aspx American Society for Quality (ASQ) James P. Womack and Daniel T. Jones, Lean Thinking: Banish Waste and Create Wealth in Your Corporation (Free Press, 2nd Edition, June 2003). © 2013 Lockheed Martin Corporation. All Rights Reserved 31 Your Turn! How to contact me: Jerry Hamilton (817) 777-5917 jerry.hamilton@lmco.com © 2013 Lockheed Martin Corporation. All Rights Reserved 32