Lean&Six Sigma.txt

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Author:
heyyates
ID:
29803
Filename:
Lean&Six Sigma.txt
Updated:
2010-08-13 15:19:43
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Supply Chain
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Min's world
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  1. Throughput
    Rate at which system generates money through sales
  2. Continuous Flow Mfg. (CFM)
    • 1. One piece flow at a rate determined by the customer
    • 2. Smooth and un-interrupted flow
  3. Poka-Yoke
    Eliminating possible errors; forgetfulness, misunderstanding, identification, willful errors, lack of standards, indadvertant errors.
  4. Kanban-Pull
    • 1. A method of material control.
    • 2. A kanban card will give permission for the next operation to produce more parts.
  5. Multi-Vari Analysis
    • Chart to track variables like pr., temp, thk, customer complaints, etc at varying intervals.
    • Variations within piece, piece-to-piece and time-to-time can be spotted.
    • USL-Aim-LSL..
  6. Seven Classical Wastes (MUDA)
    • 1. Overproduction
    • 2. Inventory
    • 3. Rework/Rejects
    • 4. Motion
    • 5. Processing
    • 6. Waiting
    • 7. Transport
  7. Andon Board
    • 1. Visual control device - shows current state of production, indicates problems, etc
    • Green - No problems
    • Yellow - Situation needs assistance
    • Red - Pdn. stopped
  8. 5S
    • 1. Seiri - Sort
    • 2. Seiton - Set in order
    • 3. Seiso - Shine
    • 4. Seiketsu - Standardize
    • 5. Shitsuke - Sustain
  9. Affinity Diagram
    • Tool to organize complex info. into logical categories
  10. A3 Reports
    • Concise summary of a project on a single sheet of paper
    • 1. Uses concise wordings
    • 2. Uses charts to illustrate points
    • 3. Restricts to 3-4 bullets per section
    • 4. Provides substance, not fluff.
  11. Business Case
    • A short summary of the strategic reasons for the project.
    • 1. Design of a new project/process
    • 2. Redesign of existing projects/process
  12. Project Charter - Uses
    • Team is aware of the project goals and boundaries
    • Team will remain focussed on goals
    • Team will work in alignment with the organization's goals
    • Team champion will support the team and their goals
  13. Spagetti Diagram
    • Describing the flow of people, information or material in almost any type of process.
  14. Pull Value (Value of the Pull System)
    • 1. Cycle time reduction
    • 2. Reduction in finished inventory
    • 3. Reduction in WIP
    • 4. Order stabilization by customers
    • 5. Pricing stabilization
  15. Kano Model/Analysis
    • 1. Dissatisfiers (Basic reqmts., "must be")
    • 2. Satisfiers (variable reqmts., "more is better")
    • 3. Delighters (latent reqmts.)
  16. Critical To Quality (CTQ) tree
    • Focuses on key metrics of customer satisfaction
  17. Voice of Customer (VOC)
    • Enables the organization to:
    • 1. Make decisions on products and services
    • 2. Identify product features and specs.
    • 3. Focus on improvmenet plans
    • 4. Develop baseline metrics
    • 5. Identify customer satisfaction drivers
  18. Pareto Diagram
    • Prioritize problems based on their frequency of occurance
    • "Vital Few" and "Trivial Many"
    • 20% 80%
  19. Cause and Effect Diagram
  20. Process Capability Studies
    (Results)
    • 1. Do Nothing: Process limits within spec. limits
    • 2. Change Spec: If customer agrees
    • 3. Center the process: If process spread matches spec. spread, but with a shift
    • 4. Reduce Variability: DOE used to find variations
    • 5. Accept the losses: Handle scrap and rework efficiently
  21. Histogram
    • Frequency column graphs displaying a static picture of process behavior
  22. Sensitivity
    Measure of the smallest change in measurand that can be sensed by the msmt. device
  23. Resolution
    Smallest msmt. change that can be represented by the display of the msmt. device
  24. Repeatability
    • 1. Measure of the ability of the msmt. process to repeatedly get the same results keeping all factors same.
    • 2. Same gage and same operator
  25. Precision
    • 1. Repeatability and reproducibility
    • 2. Describes how close successive msmt. results fall when repeated.
  26. Reproducibility
    • 1. Measure of ability of msmt. process to obtain same results under varying conditions.
    • 2. Same gage, different operators - gage reproducibility
  27. Bias/Offset
    Systematic difference between 2 successive msmts. of the same thing
  28. Accuracy
    • 1. Degree of closeness of a msmt. to its true value
    • 2. Lack of bias
  29. Data Coding
    • 1. Too many digits of the measured value
    • 2. Insensitivity due to rounding offs
    • 3. Errors due to entering of large sequence of data by operators. So:
    • Code: Xc = X + C, Decode: X1=Xc1- C and sigma = sigmac
    • Xc = X/f, Decode: X1 = Xc f and sigma = f x sigmac
  30. Measles/Concentration Charts
    • 1. Charts that utilize location data
    • 2. To answer the question 'where'.
  31. Takt Time
    • Takt Time = Available pdn. time / Rate of customer demand
    • It is the beat/rythm of the process.

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