The document discusses quality control concepts and processes. It introduces common quality control frameworks like the Juran Trilogy, PDCA cycle, feedback loops, and the pyramid of control. It distinguishes between quality control and quality assurance. Planning is a key part of quality control - it involves understanding customer needs, defining control responsibilities, using tools like flow diagrams to plan inspection points, and determining who will do the planning. The overall goal of quality control processes is to maintain stability and meet customer requirements.

1. Quality control process
Presented By :
Akshi Tamta
Mahima Bhatnagar
Roshni Rajendra

2. Introduction
• Quality control is a universal managerial process
for conducting operations so as to provide
stability—to prevent adverse change and to
“maintain the status quo.”
• Function:
▫ evaluates actual performance
▫ compares actual performance to goals
▫ takes action on the difference
17 July 2015 2National Institute of Fashion Technology, Bangalore

3. Juran Trilogy
Fig 1. The Juran trilogy Diagram
17 July 2015 3National Institute of Fashion Technology, Bangalore

4. QC v/s QA
Quality Control Quality Assurance
• Evaluates performance
• Compares performance to
goals
• Maintains control
• Evaluates performance
• Compares performance to
goals
• Verifies that control is being
maintained
17 July 2015
4
National Institute of Fashion Technology, Bangalore

5. Quality Control Concepts
• Feedback loop
• Process capability
• Self-control
17 July 2015 5National Institute of Fashion Technology, Bangalore

6. Feedback loop
17 July 2015 6
National Institute of Fashion Technology, Bangalore
Fig 2 . The generic Feedback loop

7. Elements of Feedback Loop
17 July 2015 7
National Institute of Fashion Technology, Bangalore
Fig 3. The Quality control process

8. Self Control
17 July 2015 8
National Institute of Fashion Technology, Bangalore
Fig 4. Self Control

9. The PDCA Cycle
• Also called Deming wheel and Shewhart cycle
▫ Plan: includes choosing control subjects and
setting goals
▫ Do: includes running the process
▫ Check: includes sensing and umpiring
▫ Act: includes stimulating the actuator to take
corrective action
17 July 2015 9National Institute of Fashion Technology, Bangalore

10. The PDCA Cycle
17 July 2015 10National Institute of Fashion Technology, Bangalore
Fig 5.The PDCA Cycle

11. The Pyramid of control
Control by
Managers,
Supervisors
Control by the Work Force
Automated Controls
17 July 2015 11National Institute of Fashion Technology, Bangalore
Control
by Upper
Managers
Fig 6 . The Pyramid of control

12. Contrast of Quality Control
17 July 2015 12National Institute of Fashion Technology, Bangalore
Table 1. Contrast of Quality Control at Two Levels—Work Force and Upper
Management

13. Planning for Quality Control
• Planning for control is the activity which provides the
system—the concepts, methodology, and tools—through
which company personnel can keep the operating
processes stable and thereby produce the product
features required to meet customer needs
17 July 2015 13National Institute of Fashion Technology, Bangalore

14. The Customers and Their Needs
• The company personnel engaged in control
• carry out the steps which form the feedback loop
• Such personnel require
▫ an understanding of customers’ quality needs
▫ a definition of their own role in meeting those
needs
17 July 2015 14
National Institute of Fashion Technology, Bangalore

15. Planning for Quality Control
• helps to bridge that gap
• provides operating personnel with information on
customer needs (whether direct or translated) and
definition of the related control responsibilities of the
operating personnel.
17 July 2015 15National Institute of Fashion Technology, Bangalore

16. Planning for Quality Control
Who plans?
• Staff planners who also plan operating processes
• Staff quality specialists
• Multifunctional teams of planners and operating
personnel
• Departmental managers and supervisors
• Work force
17 July 2015 16
National Institute of Fashion Technology, Bangalore

17. Quality Control Concepts
• Flow diagram- helps the planning team to
understand the overall operating process
• Control stations- area in which quality control
takes place
17 July 2015 17National Institute of Fashion Technology, Bangalore

18. Quality Control Concepts
17 July 2015 National Institute of Fashion Technology, Bangalore 18
Fig 7 .The Flow Diagram

19. Bibliography
• Joseph M. Juran, A. Blanton Godfrey (1998),
Juran’s Quality handbook, 5th edition, McGraw-
Hill
17 July 2015
National Institute of Fashion Technology, Bangalore
19