In Class Notes 4/8
Quality Tools
1. Fishbone (Cause & Effect)
a. 4 M’s – Man, Material, Method, Machinery
b. MMMM OUTCOME
i. What M caused each outcome? Brainstorming session to see what went wrong or what happened – what under each of these categories is hurting us?
c. P’s and S’s as well
2. Pareto Analysis
a. 80/20 rule – you wear 80% of clothing 20% of the time
b. Can be drawn as a bar graph then draw a fishbone to see what the problems were and why (cause and effect) – best chart to use visually
3. 5 Why’s
a. Why? – Late to work, Why? – Ran out of Gas, Why? - Didn't have any money, Why? - I lost playing poker, Why? - They kept calling my bluff
4. SIPOC – Flow Chart
a.
b. PB&J Example
i. PBJ = Process ii. Inputs = white bread, PB, Jelly, Knife iii. Suppliers = wonder, jiff, smuckers, blm knife iv. Outputs = sandwich
v. Customers = happy
c. Make a scatterplot to let you see the relationship between a couple of items, and lets you know how to react to that in a positive or negative way
Chapter 10 – Statistical Process Control (2nd powerpoint)
Types
1. Detection – reacting to problems as they arise
a. Starting a business in your garage
b. Look at raw material
c. Make sure people are doing it the right way
d. Make sure everything is right before customer goes
e. Damage is already done – you either find it or you don't, but if you do find it, you have to spend the money to make it all over again
2. Prevention – trying to eliminate the occurrence of a problem
3. Improvement –reducing common errors
Detection Processes
A. Inspection – comparing a product or service with acceptable characteristics
B. Testing – measuring performance of complex assemblies and services systems
a. Will the product perform as intended?? Car example
C. Types of measures
a. Attribute (measured in categories) ACCEPT OR REJECT, GOOD OR BAD, PASS OR FAIL
i. Are children tall enough to get on ride? You ARE or you