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QUALITY CONTROL

QUALITY CONTROL. QUALITY DEFINITION. To carry, support. QUALITY IS THE CHARACTERISTICS OF A PRODUCT OR SERVICE THAT BEAR ON ITS ABILITY TO SATISFY STATED OR IMPLIED NEEDS. DIMENSIONS OF QUALITY. PERFORMANCE RELIABILITY DURABILITY SERVICEABILITY AESTHETICS FEATURES

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QUALITY CONTROL

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  1. QUALITY CONTROL

  2. QUALITY DEFINITION To carry, support • QUALITY IS THE CHARACTERISTICS OF A PRODUCT OR SERVICE THAT BEAR ON ITS ABILITY TO SATISFY STATED OR IMPLIED NEEDS.

  3. DIMENSIONS OF QUALITY • PERFORMANCE • RELIABILITY • DURABILITY • SERVICEABILITY • AESTHETICS • FEATURES • CONFORMANCE TO STANDARDS

  4. DEFINITION OF QUALITY CONTROL With the aim • QUALITY CONTROL (QC) IS A PROCEDURE OR SET OF PROCEDURES INTENDED TO ENSURE THAT A MANUFACTURED PRODUCT OR PERFORMED SERVICE ADHERES TO A DEFINED SET OF QUALITY CRITERIA OR MEETS THE REQUIREMENTS OF THE CLIENT OR CUSTOMER. To stick to, to bind

  5. COMPANY QUALITY ability, capability, adequacy THE COMPANY-WIDE QUALITY APPROACH PLACES AN EMPHASIS ON THREE ASPECTS: • ELEMENTS SUCH AS CONTROLS, PERFORMANCE OF RECORDS. • COMPETENCE SUCH AS KNOWLEDGE, SKILLS. • SOFT ELEMENTS SUCH AS MOTIVATION AND QUALITY RELATIONSHIPS.

  6. TOTAL QUALITY CONTROL TOTAL QUALITY IS THE CONTROL SYSTEM THAT CAN HELP ENSURE THE SUCCESS OF A COMPANY.

  7. OBJECTIVE OF QUALITY CONTROL set up, found • TO ESTABLISH STANDARDS OF QUALITY THOSEARE ACCEPTABLE BY THE CUSTOMER AND ECONOMICAL TO MAINTAIN

  8. QUALITY CONTROL GOES INSPECTION BY: • ESTABLISHING STANDARDS FOR THE PRODUCT OR SERVICE,BASED ON THE CUSTOMER NEEDS, REQUIREMENTS. • ENSURING CONFORMANCE TO THESE STANDARDS.

  9. RESPONSIBILITY OF QUALITY CONTROL Quality is everyones job. It includes the worker,the president of the company. The responsibility for quality begins when marketing determines the customer’s quality and continues until the product is received by a satisfied customer.

  10. CUSTOMER PRODUCT SERVICE MARKETING DESIGN ENGINEERING PACKAGING AND STORAGE QUALITY PRODUCT PROCUREMENT PROCESS DESIGN INSPECTION AND TEST PRODUCTION

  11. CONTENT OF QUALITY CONTROL • SPECIFICATIONS OF WHAT IS NEEDED • DESIGN OF THE PRODUCT OR SERVICE TO MEET THE SPECIFICATIONS • INSPECTION TO DETERMINE CONFORMANCE TO SPECIFICATIONS

  12. BENEFITS OF QUALITY CONTROL • IMPROVEMENT IN THE QUALITY LEVEL AND UNIFORMITY OF INCOMING MATERIALS • REDUCTION IN INSPECTION COSTS • REDUCTION IN SCRAP AND REWORK • IMPROVEMENT IN PRODUCER-CUSTOMER RELATIONS

  13. BENEFITS OF QUALITY CONTROL • IT INCREASES OUTPUT OF SALEABLE GOODS. • IT DECREASES COSTS OF PRODUCTION.

  14. QUALITY ASSURANCE (QA) To examine in general • QA is defined as a procedure or set of procedures intended to ensure that a product or service under development (before work is complete, as opposed to afterwards) meets specified requirements. • IT INCLUDES MANAGEMENT OF AUDIT PARTICIPANTS. • Establishment of the group of inspectors • Management of employees’s activity

  15. QUALITY ASSURANCE (QA) capable; skilled in doing what one does; • SUPERVISION OVER THE AUDIT PROCESS: • Availability of skilled and competent audit team • Compliance of work performed with the audit program

  16. TOOLS OF QUALITY CONTROL Fishbone Diagrams Histograms Pareto Analysis Flowcharts Scatter Plots Run Charts Control Charts

  17. Constructing a Fishbone Diagram • Ex. : High Inventory Shrinkage at local Drug Store employees attitude training new trainee practices benefits Shrinkage Anti-theft tags poorly designed Expensive merchandise out in the open No security/ surveillance shoplifters

  18. HISTOGRAM These charts are helpful in showing frequencies and variation. # times ordered Slices of Pizza

  19. FLOWCHART Window Take Customer Money? (start) Order Get Pizza Lockup Put More in Oven 2 Pies Available? Time to close? Take to Customer yes no yes no yes no

  20. SCATTER DIAGRAMS They are used to show the relationship between the variables. Defective Pizzas Time Cooking (minutes)

  21. RUN CHARTS They are used to plot data based on time. Slices/hour 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 They are useful to identify the trends. 8 9 10 11 12 1 2 3 4 8 9 10 11 12 1 2 3 4 8 9 10 11 12 1 2 3 4 Time PM- AM PM- AM PM- AM Thursday Week 1 Thursday Week 2 Thursday Week 3

  22. CONTROL CHARTS They are useful in regulating a process. Upper Limit 17 inches Lower Limit 15 Inches X 16 inches= Small Pie

  23. PARETO CHARTS • The purpose of the Pareto chart is to highlight the most important factor among a set of factors. • In quality control, it often represents the most common sources of defects, the highest occurring type of defect, or the most frequent reasons for customer complaints, and so on.

  24. FAILURE TESTING To make visible A VALUABLE PROCESS TO PERFORM ON A WHOLE CONSUMER PRODUCT IS A FAILURE TESTING. THE OPERATION OF A PRODUCT UNTIL IT FAILS, OFTEN UNDER STRESSES. THIS EXPOSES MANY WEAKNESS IN A PRODUCT. OFTEN SIMPLE CHANGES CAN IMPROVE PRODUCT SERVICE.

  25. STATISTICAL CONTROL STATISTICAL PROCESS CONTROL IN MANUFACTURING USUALLY PROCEED TESTING FRACTION OF THE OUTPUT. VARIANCES OF CRITICAL TOLERANCES ARE MANUFACTURING PROCESSES ARE CORRECTED BEFORE BAD PARTS CAN BE PRODUCED.

  26. THANKS FOR Your Attention…

  27. Today’s Essay Topic • No essay this week !!!! • Instead we will practice some words 

  28. Efficiency Etkinlik, verimlilik Execute (v) Uygulamak Feedback (n) Geri bildirim Supply chain (n) Tedarik Zinciri Superior (n) Amir, üst Component (n) Bileşen, alt parça Manufacture (v) İmal etmek Ratio Oran Average Ortalama Forecasting Tahmin etme

  29. Throughput Çıktı, işlem hacmi Equipment Ekipman Inventory Stok, envanter Investment Yatırım Evaluate (v) Değerlendirmek • Schedule (v) Çizelgelemek • Demand (n) Talep • Overtime Fazla mesai • Labor Emek • Schedule (n) Çizelge

  30. Purchase (v) Satın almak Material Malzeme Minimize (v) En aza indirmek, küçültmek, azaltmak, minimize etmek Permanent Kalıcı Partial Kısmi, kısma ait Constraint (n) Kısıt Consensus Oy birliği Communicate (v) İletişim kurmak Maintenance (n) Bakım Distribution Dağıtım Automation Otomasyon Inspect (v) İncelemek, denetlemek

  31. GOOD LUCK IN THE EXAM

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