Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Lean Six Sigma Trinity Term > Lean Six Sigma > Flashcards

Lean Six Sigma Flashcards

Green Belt Baby! (51 cards)

Start Studying
1
Q

7 Wastes

A 
TIMWOODS
Transport
access Inventory
Motion
Waiting 
Over Production
Over Processing
Defects
Skills
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Difference between Lean and Six Sigma

A

Lean

  • minimizes resources use, reduction cycle time,
  • reduced muda, mura and poor economics

Six Sigma

  • minimizes variation
  • reduces undesired variation
  • Doesn’t look at wastage
  • Doesn’t look at non-standard processes
  • Data driven/repitition
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

TOC

A

Theory of Constraints

reduced bottlenecks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Six Sigma

A

a set of management techniques intended to improve business processes by reducing the probability that an error or defect will occur.
4.5 Sigma variation + 1.5 Sigma process walk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

DPMO

A

Defects per million opportunities

= (No. of defects in sample)/(No. opportunities for defects in sample) * 1000 000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

PPM

A

Parts Per Million

=(Total no. of defects in a sample)/ (sample size) * 1000000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

DPU

A

Defects per unit

=(Total number of defects per sample)/(sample size)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Sources of variation

A 
Common Cause:
- Random
-Systemic issues
*Can be caused by inputs/machinery/environmental/change/people
Can be predicted

Special Cause
-Non-random
-Can be identified
*Can be caused by something in the system (environmental), usually confined to individuals
Can be eliminated
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Defect level of a company operating at 6 sigma?

A

3.4PPM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a Six Sigma Green Belt

A

Is able to use tools to analyse results within the context of process improvement projects.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

SIPOC

A

Suppliers, Inputs, Process, Outputs, Customers

Backwards: COPIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What shape is used to represent a decision in a process flowchart

A

Diamond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does R&R stand for in gage R&R. What is the tool used for?

A

DMAIC-> measure tool

Repeatability -what variation do I introduce each time I repeat?
Reproducability - When another person does the same measurement.

Statistical tool that measures amount of variation in a measurement system arising from the measurement device and the people taking the measurements.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q 
Which of the following basic quality tools can be used to identify the root cause of a problem?
A. Fishbone
B. Process Flow
C. Pareto Chart
D. Run Chart
E. Histogram
A

A. Fishbone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is Takt time - Is it a PUSH or PULL system?

A
  • rate at which the finished product needs to be complete to meet the customer demand

= net available time/ customer demand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Define Kaizen

A

Continuous improvement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Define Kaikaku

A

Radical Change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are some of the limitations of SixSigma

A

Only for repetitive/ standard processes
Vary Formulaic/ can hinder innovation
Law of Diminishing Returns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

For normal distribution, two standard deviations on each side of the mean would include what percentage of the total population?
A. 95%
B. 68%
C. 99.73%

A

A. 95%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Explain the purpose of the project charter

A 
Document that formally authorizes a project
Defines scope
Define roles 
Defines success
Used to avoid Scope Creep
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is SMART

Study These Flashcards
A 
Specific
Measurable
Attainable
Realistic
Time Bound
22
Q

Give three examples of KPI’s

Study These Flashcards
A

Leadtime
Defects
Return Rates

23
Q

How would you determine CTQ?

Study These Flashcards
A

C- Ctitical
T- to
Q - Quality

It is the voice of the customer (requirement) converted to a measurable set of indicators (with a set of boundaries)

24
Q

Which tool combines customer requirements, design considerations and design alternatives in a three dimensional matrix to which you can assign weighted scores based on market research information collected

Study These Flashcards
A

House of Quality or Quality function Deployment (QFD)

25
What is PDCA
Plan Do Check Act (Deming proposed Cycle)
26
What is FMEA, when and how is it used?
Failure Mode Effect Analysis DMAIC -> Analyze tool Accesses Risk by three factors: Severity Occurrence Detection
27
``` Warranty claims are classified in which of the following cost of quality groups: A. Internal Failure B. External Failure C. Appraisal D. Prevention ```
B. External Failure
28
Errors in the entry of billing numbers into a computer system are on average 4%. Given this process is capable, what should the sample size for the control study be?
On average you should see 2 attributes within your sample. Therefore: 2*100/4 = 50 -> Sample size is 50
29
When is a process capable?
When it can meet customer specifications More specifically: When the upper/lower +/-3 sigma control limits (UCL/LCL) lie withing the Upper and Lower Customer Specification Limits (USL/LSL) (Look at the page Matthius gave us labelled 'SPC' for example)
30
When is a process in control?
When it only exhibits random variation
31
What does DMAIC stand for?
``` Define Measure Analyse Improve Control ```
32
7 tools of Quality
1. Process Flow 2. Check Sheet 3. Run Chart 4. Histogram 5. Pareto Analysis 6. Scatter Diagram 7. Cause and Effect Diagram
33
What are the 6M's
For analyzing performance/cause and effect: DMAIC -> Analyze tool: 1, Man (people) 2. Methods (process) 3. Machines (technology) 4. Materials 5. Measurements (inspections) 6. Milieu/ Mother nature (environment)
34
Deming proposed the following (3)
1. Believed that natural variation is inherent in all processes 2. Viewed quality through management as a system 3. Suggested that management is responsible for 85% of quality problems (shop floor employees only 15%)
35
Process flow -> Symbol for 'waiting'
Upside down triangle
36
Process flow -> Symbol for 'start/stop'
circle
37
Process flow -> Symbol for 'task'
square/rectangle
38
Costs of quality
DMAIC -> Analyze tool: 1. Prevention 2. Appraisal 3. Internal Failure 4. External Failure
39
5S (6S)
DMAIC -> Improve tool: | ``` Sort Set in Order Shine Standardize Sustain 6: Safety ```
40
CANDO
DMAIC -> Improve tool: ``` Clean Arrange Neatness Discipline Ongoing Improvement ```
41
SMED
DMAIC-> Improve tool: Single Minute Exchange of Dyes
42
Where does SPC come into DMAIC?
Control
43
Current Reality Tree
DMAIC-> Analyze tool: Root Cause Analysis tool *Begins with a list of undesirable effects *Depicts Cause and Effect reasoning (It looks like a tree - the example of the car in the pool was used in class)
44
Example of attribute data
Count items such as number of defects Uses p-chart only
45
Example of variable data
Measurement of particular characteristic, such as width Uses X-bar (averages) & R-chart (ranges)
46
Pareto Analysis
DMAIC -> Analyse Statistical technique that is used to find a limited number of tasks that produce a significant overall effect. Pareto principle: 80/20 rule 20% of the work can generate 80% of the benefit
47
Define stage of DMAIC (name 5)
``` Project Charter stakeholder analysis voice of customers brainstorming tools affinity diagram Kaizen/Kaikaku SIPOC CTQ KANO KPI's SMART ```
48
Measure tools of DMAIC (name 5)
``` Basic Quality tools Hard and Soft Savings gauge R&R DPMO/DPU/PPM Urgent/Important matrix Breakthrough equation Process Analysis Takt time Capability Analysis ```
49
Analyze tools of DMAIC (name 5)
``` Value stream mapping Root Cause Analysis (Current Reality Tree, 5 Why's, Fishbone) Cost of Quality Spagetti Diagram Business Impact Analysis FMEA - Failure Mode & Effect Analysis Seven deadly wastes Design of experiments Pareto Analysis (80/20 rule) Affinity Diagram ```
50
Improve tools in DMAIC (name 5)
``` Poka yoke TRIZ 5S SMED (single minute exchange dyes) FMEA (Failure Mode Effect Analysis) BIA Pugh matrix Design of Experiments Process Mapping 5 lean principles Hoshin Kanri ```
51
Control tools
``` Andon Control/Run Charts SPC Dash board Score Card ```

Lean Six Sigma Trinity Term (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions