1. What is the objective of the control phase? What are its sub-steps?
2. What is a control plan? What are the important questions that should be answered in the control plan?
3. What is the main difference between an inspection plan and a control plan?
4. Give an example that shows the difference between the customer's measure of quality and actual specification.
5. List and briefly describe different types of control plans.
6. What is the difference between process stability and capability? Include a graph for each one.
7. List at least five factors that can change a process.
8. Which probability distribution is the basis of SPC? When do the observations from a process form a curve like a normal distribution (hint: think about presence or absence of assignable causes)?
9. How many standard deviations are commonly used as the SPC control charts? What percentage of observations should fall within such limits?
10. When do we say a process is out of statistical control?
11. What does it mean that a manufacturing process is a random number generator?
12. What is Kanban used for? Is it used with push or pull production systems?
13. What is a 2-bin system? How does it work?
14. Why does Kanban require a high level of quality and product robustness?
15. What are the two important prerequisites of Kanban? Why?
16. What is the relationship between Kanban and Poka-Yoke?
17. In a 2-bin system, how much inventory should be placed in each bin if you want to eliminate extra inventory (hint: think about how much inventory is needed until the empty bin is refilled)?
18. Which wastes are eliminated using the one-piece flow?