Quality management 3

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Quality management 3

  1. 1. Quality Basic ToolsSeven Basic QUALITY Tools Aditya@poltekom.ac.id
  2. 2. Mind MAP of QUALITYQPE is the TARGET parameterSIX SIGMA is the ASSESMENT methodSEVEN TOOLS is the QUALITY tools Aditya Kurniawan POLITEKNIK KOTA MALANG
  3. 3. Seven BASIC tools of quality• Check Sheet• Stratification• Histogram• Pareto Charts• Ishikawa Diagram / Fishbone Diagram• Scatter Diagram• Control Chart Aditya Kurniawan POLITEKNIK KOTA MALANG
  4. 4. Check Sheet / Tally sheet Taken From QPE Aditya Kurniawan POLITEKNIK KOTA MALANG
  5. 5. Check sheet procedure• Classification: A trait such as a defect or failure mode must be classified into a category.• Location: The physical location of a trait is indicated on a picture of a part or item being evaluated.• Frequency: The presence or absence of a trait or combination of traits is indicated. Also number of occurrences of a trait on a part can be indicated.• Measurement Scale: A measurement scale is divided into intervals, and measurements are indicated by checking an appropriate interval. Aditya Kurniawan POLITEKNIK KOTA MALANG
  6. 6. Check sheet- Classification• Classification: A trait such as a defect or failure mode must be classified into a category. Classification of defects/failure must be technically identifiedexample:DimensionMotor speedWheel clearance Aditya Kurniawan POLITEKNIK KOTA MALANG
  7. 7. Check Sheet / Tally sheet Aditya Kurniawan POLITEKNIK KOTA MALANG
  8. 8. Check sheet- Location• Location: The physical location of a trait is indicated on a picture of a part or item being evaluated. Location of defects/failure must be identifiedexample:Schneider manuf.CikarangDripper line 2Molding room 14 Hyundai machine ltd Aditya Kurniawan POLITEKNIK KOTA MALANG
  9. 9. Check Sheet / Tally sheet Aditya Kurniawan POLITEKNIK KOTA MALANG
  10. 10. Check sheet- Frequency• Frequency: The presence or absence of a trait or combination of traits is indicated. Also number of occurrences of a trait on a part can be indicated. Frequency of defects/failure must be identified (by a check or stripe)example:√√√√√√ Aditya Kurniawan POLITEKNIK KOTA MALANG
  11. 11. Check Sheet / Tally sheet Aditya Kurniawan POLITEKNIK KOTA MALANG
  12. 12. Check sheet- Scale• Measurement Scale: A measurement scale is divided into intervals, and measurements are indicated by checking an appropriate interval. Measurements scale of defects/failure must be identifiedexample:Dimension : mm – failure toleranceOUT > 100mmHigh 60-100mmMedium 30-59mmLow 3 – 29mm Aditya Kurniawan POLITEKNIK KOTA MALANG
  13. 13. Check Sheet / Tally sheet ??? Aditya Kurniawan POLITEKNIK KOTA MALANG
  14. 14. Check sheet – even A simple one works Aditya Kurniawan POLITEKNIK KOTA MALANG
  15. 15. StratificationA classification order of a problemExample :Classification by DATEClassification by DEFECTSClassification by SHIFTClassification by LOCATION Aditya Kurniawan POLITEKNIK KOTA MALANG
  16. 16. StratificationA sample taken everyday SUNDAY to SATURDAY Aditya Kurniawan POLITEKNIK KOTA MALANG
  17. 17. StratificationBy datesDATES Month 1 Month 2 Month 3Sunday 0 0 0Monday 10 9 8Tuesday 13 15 14Wednesday 10 9 7Thursday 5 3 4Friday 4 3 5Saturday 0 0 0 Aditya Kurniawan POLITEKNIK KOTA MALANG
  18. 18. StratificationBy locationDATES Month 1 Month 2 Month 3Line 1 42 44 41Line 2 36 33 34Line 3 54 66 56Line 4 22 23 23Line 5 12 11 10Line 6 44 42 43Line 7 34 33 31 Aditya Kurniawan POLITEKNIK KOTA MALANG
  19. 19. HISTOGRAMA classification order of a problem GRAPHExample :Histogram by DATEHistogram by DEFECTSHistogram by SHIFTHistogram by LOCATION Aditya Kurniawan POLITEKNIK KOTA MALANG
  20. 20. HISTOGRAMA classification order of a problem GRAPHExample :Histogram by DATEHistogram by DEFECTSHistogram by SHIFTHistogram by LOCATION Aditya Kurniawan POLITEKNIK KOTA MALANG
  21. 21. Make a Check sheet• Make a check sheet design for the production of your previous internship (prakerin) in excel DATE Month Month Month S 1 2 3 Line 1 42 44 41 Line 2 36 33 34 Line 3 54 66 56 Make stratification Line 4 22 23 23 Line 5 12 11 10 Line 6 44 42 43 Line 7 34 33 31• Make a stratification design for the production of your previous internship (prakerin) in excel Make histogram• Make a histogram design for the production of your previous internship (prakerin) in excel Aditya Kurniawan POLITEKNIK KOTA MALANG
  22. 22. PARETO chartA classification order / prioritizing order – Pareto charts are used to identify and prioritize problems to be solved. – They are actually histograms aided by the 80/20 rule adapted by Joseph Juran. •Remember the 80/20 rule states that approximately 80% of the problems are created by approximately 20% of the causes. Aditya Kurniawan POLITEKNIK KOTA MALANG
  23. 23. PARETO chart Aditya Kurniawan POLITEKNIK KOTA MALANG
  24. 24. PARETO CHARTA sample taken with 10 types of defect Aditya Kurniawan POLITEKNIK KOTA MALANG
  25. 25. PARETO CHARTMonthly view tableType of defects Month 1 Month 2 Month 3Supply part rusted 22 29 21Misaligned weld 2 4 3Improper test 4 5 2Wrong part 2Void in casting 2 4Film on part 4 4 4Incorrect dimension 10 9 10Adhesive failure 2 2 Aditya Kurniawan POLITEKNIK KOTA MALANG
  26. 26. PARETO CHARTMonthly view chart Month 1 25 20 15 10 5 Month 1 0 Aditya Kurniawan POLITEKNIK KOTA MALANG
  27. 27. Ishikawa diagram / fishboneA brainstorming of cause and effectCreated by defining some general casualtiesExample :MANENVIRONMENTMACHINEMETHOD Aditya Kurniawan POLITEKNIK KOTA MALANG
  28. 28. Ishikawa diagram / fishboneA brainstorming of cause and effectAnd by defining some SUB general casualtiesExample :MAN-skills-experience-pride Aditya Kurniawan POLITEKNIK KOTA MALANG
  29. 29. Ishikawa diagram / fishboneA brainstorming of cause and effectAnd even by defining some MORE minor SUB general casualtiesExample :MAN-skills - training - educational background-experience-pride Aditya Kurniawan POLITEKNIK KOTA MALANG
  30. 30. Ishikawa diagram / fishboneA brainstorming of cause and effectAnd one effectExample :Supply part rustedMisaligned weldImproper testWrong partVoid in castingFilm on partIncorrect dimensionAdhesive failure Aditya Kurniawan POLITEKNIK KOTA MALANG
  31. 31. Ishikawa diagram / fishboneA brainstorming of cause and effect Aditya Kurniawan POLITEKNIK KOTA MALANG
  32. 32. Scatter DiagramA diagram showing relationship between independent X and dependent Yvariables – Opt one casualty as independent variable X (from the control variable casualties) – Opt one effect as dependent variable Y (from the dependent variable effect) Aditya Kurniawan POLITEKNIK KOTA MALANG
  33. 33. Ishikawa diagram / fishboneEXAMPLE of picking x variable Aditya Kurniawan POLITEKNIK KOTA MALANG
  34. 34. Scatter DiagramA diagram showing relationship between independent X and dependent Yvariables – Opt one casualty as independent variable X (from the Communication branch) => (lack of information) => (Add new information item) Aditya Kurniawan POLITEKNIK KOTA MALANG
  35. 35. Scatter DiagramA diagram showing relationship between independent X and dependent Yvariables – Opt one casualty as independent variable X Adding quantities of information (confirmation) from 1 to 6 1. Telephone number 2. Mobile phone number 3. Email address 4. Secondary address 5. Office address 6. Mail box address Aditya Kurniawan POLITEKNIK KOTA MALANG
  36. 36. Ishikawa diagram / fishboneEXAMPLE of picking x variable Aditya Kurniawan POLITEKNIK KOTA MALANG
  37. 37. Scatter DiagramA diagram showing relationship between independent X and dependent Yvariables – Opt one casualty as independent variable Y (Incorrect delivery) Aditya Kurniawan POLITEKNIK KOTA MALANG
  38. 38. Scatter DiagramA diagram showing relationship between independent X and dependent Yvariables – Opt one casualty as independent variable Y The quantity of incorrect delivery in 1 month / in 1000 order Aditya Kurniawan POLITEKNIK KOTA MALANG
  39. 39. Ishikawa diagram / fishboneEXAMPLE of picking x variable Aditya Kurniawan POLITEKNIK KOTA MALANG
  40. 40. Scatter DiagramShowing degree of correlation and dependency Trivarian Pearson AnalysisBivarian Pearson Analysis Aditya Kurniawan POLITEKNIK KOTA MALANG
  41. 41. Bivarian Scatter Diagram AnalysisPearson product-moment correlation coefficient (PPMCC) Axes variable Y Dependent Axes variable X Independent / test variable Aditya Kurniawan POLITEKNIK KOTA MALANG
  42. 42. Trivarian Scatter Diagram AnalysisPearson product-moment correlation coefficient (PPMCC)Single control variable Axes variable Z Dependent Axes variable X Independent / test variable Axes variable Y Dependent Aditya Kurniawan POLITEKNIK KOTA MALANG
  43. 43. Trivarian Scatter Diagram AnalysisPearson product-moment correlation coefficient (PPMCC)Double control variable Axes variable Z Dependent Axes variable X Independent / test variable Axes variable Y Independent / test variable Aditya Kurniawan POLITEKNIK KOTA MALANG
  44. 44. Scatter DiagramCorrelation table PEARSON COEFFICIENT Correlation Negative Positive None −0.09 to 0.0 0.0 to 0.09 Small −0.3 to −0.1 0.1 to 0.3 Medium −0.5 to −0.3 0.3 to 0.5 Large −1.0 to −0.5 0.5 to 1.0 Aditya Kurniawan POLITEKNIK KOTA MALANG
  45. 45. Scatter DiagramCorrelation test X=X 2 3 4 3 2 3 4 5 4 3 4 5 6 5 6 5 4 3 4 6 7 8 6 7 6 5 6 7 5 6 7 8 6 5 4 5 6 7 8 6 7 6 7 8 6 5 6 7 8 5 4 3 3 3 2 3 5 5 3 2 3 4 3 2 3 4 5 3 2 3 3 4 2 4 5 5 4 3 4 3 Aditya Kurniawan POLITEKNIK KOTA MALANG
  46. 46. Scatter DiagramCorrelation test X=X 4 3 4 3 4 4 4 4 3 4 3 4 3 4 3 5 5 5 5 5 4 4 5 6 6 7 6 5 7 6 5 6 5 4 5 6 7 6 5 4 6 5 4 5 6 5 4 5 6 4 6 5 4 5 6 5 4 5 6 5 4 4 5 4 6 6 6 5 6 7 5 6 7 7 7 6 6 7 6 5 Aditya Kurniawan POLITEKNIK KOTA MALANG
  47. 47. Scatter DiagramCorrelation test X=X 2 3 3 3 4 4 5 5 6 6 7 7 8 9 8 9 7 8 9 10 11 12 11 3 3 4 5 5 6 5 6 7 6 7 6 7 8 7 8 7 8 9 8 9 8 9 10 10 11 11 12 12 12 13 14 14 14 12 11 9 8 9 8 7 8 9 8 7 6 7 8 9 10 11 11 12 13 11 12 13 Aditya Kurniawan POLITEKNIK KOTA MALANG

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