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86 Cards in this Set

  • Front
  • Back
What is Six Sigma
1.An organisational philosophy on achieving customer satisfaction.
2.A methodology focused on reduction of variation.
What is the right structure of the Six sigma methodology?

Measure,Control ,Analyse,Improve, Define
Define, Measure, Analyse,Improve, Control
Describe DMAIC Methodology
Define, Measure, Analyse,Improve, Control
Mistake proofing is part of the Measure phase
Yes or No
No
The project charter belongs to the Analyse phase
Yes or No
No
•Full Time 6 Sigma Leaders
•Manage BB Projects & Plant 6 Sigma
•Run 6 Sigma Projects
•Instruct & Train BB, GBs, & YBs
Talks about which Six sigma role
MBB
*Full or Part Time 6 Sigma Leaders
•Manage 6 Sigma Projects
•Instruct & Train GBs & YBs
Talks about which Six sigma role
Black belt
•Part-Time 6 Sigma Leaders
•Run Mini 6 Sigma Projects
Talks about which Six sigma role
Green Belt
•Data Collection Experts
•Assist in Measure & Control
Talks about which Six sigma role
Yellow Belt
Yellow Belts are often not involved in the define phase.
Truth of False
True
VOP talks about ?
How a process behaves
There are two kinds of variation?
Commen cause variation
Special cause variation
CTQ stands for
Critical to Quality
VOC can be devided into two different catogories?
Critical to customer(CTC) requirements these relate to the CTQ's
What does the fit refers to in the relationship between VOC and VOP
Process capability
How many defects per million are there in a six sigma project?
3.4
units 118772
oppertunities per/unit 28
amount of defects 11415
-
units 42896
oppertunities per/unit 17
amount of defects 957
-
units 6225
oppertunities per/unit 58
amount of defects 913
-
units 1459
oppertunities per/unit 95
amount of defects 1736
-
units 344
oppertunities per/unit 7
amount of defects 39
-
units 183
oppertunities per/unit 56
amount of defects 262
-
units 9
oppertunities per/unit 1757
amount of defects 110
-
units 17587
oppertunities per/unit 4
amount of defects 835
-
units 17569
oppertunities per/unit 38
amount of defects 9512
-
units 2395
oppertunities per/unit 25
amount of defects 4207
-
units 6462
oppertunities per/unit 146
amount of defects 543
-
units 289
oppertunities per/unit 16
amount of defects 234
-
units 33
oppertunities per/unit 43
amount of defects 1365
-
units 965
oppertunities per/unit 15
amount of defects 461
-
units 496
oppertunities per/unit 6
amount of defects 109
-
units 422
oppertunities per/unit 73
amount of defects 7702
-
units 222
oppertunities per/unit 12
amount of defects 36
-
units 4161
oppertunities per/unit 3
amount of defects 418
-
units 1058
oppertunities per/unit 52
amount of defects 737
-
units 6276
oppertunities per/unit 11
amount of defects 3101
-
units 16492
oppertunities per/unit 150
amount of defect 980069
-
The Define phase consists out of 3 components ?
1. Development of a project charter
2.A SIPOC analysis
3.Performing a VOC analysis
A project charther normally consists out of 8 steps
Name them all
1. Business case
2.Problem statement
3.Goal statement
4.Scope
5.Schedule with planning
6.List of benefits
7.List of roles and responsibilities
8.Draft project objective
What is the purpose of a project charter ?
To provide a go or no go for a project
DMADV stands for
An acronym for ‘Define, Measure, Analyze, Design, Verify’
In what are SS and Lean Manufacturing related?
*Both have the ability to make very significant positive financial impacts on an organization;
*Both (like many other initiatives) need management support for success;
*Both can be used in nonmanufacturing environments.
SS is an ‘Organizational Philosophy’ on achieving customer satisfaction
*Doing the right thing the first time;
*Focus on the elimination of process variation;
*Quality of a product/service is the result of high quality process;
*To measure is to know;
*Quality can be organized.
Key Concepts leading to SS
1.‘Critical-to-Quality’ characteristics:
2.Defect:
3.Process Capability
4.Variation:
5.Stable Operations:
6.Design for SS:
Design for SS stand for
designing to meet customer needs and process capability
How Does Six Sigma Work?
Define: what is the problem, process, and who can fix it?
Measure: can I explain my problem with data?
Analyze: what is the real problem and root causes?
Improve: lets design solutions and improve the process
Control: did we improve and did we save money?
The SS Methodology: Roles and Responsibilities
Write down order
1.Senior executive
2.Executive committee
3.Champion
4.Master Black Belt
5.Black belt
6.Green belt
7.Yellow belt
Green Belt versus Black Belt Projects
differ on which pionts?
1.Green belts are less involved
2.Only basic statistics methods
3.Black belts have more complex projects
Benefits of Six sigma
name at least 5
Improved process flows;
Reduced total defects;
Improved communication;
Reduced cycle times;
Enhanced knowledge;
Higher levels of customer and employee satisfaction;
Increased productivity;
Decreased ‘Work in progress’ (WIP);
Decreased inventory;
Improved capacity and output;
Increased quality and reliability;
Decreased unit costs;
Increased price flexibility;
Decreased time to market;
Faster delivery time;
Conversion of improvements into hard currency.
Benefits to stakeholders are a by-product of the organizational benefits. These include:
Stockholders receive more profit due to decreased costs and increased revenues;
Customer delight with products and services;
Employee experience higher morale and more satisfaction from joy in work;
Suppliers enjoy a secure source of business.
The transformation involves the ‘creation of value’ in one of three aspects:
Time (an output has ‘time value’ if it is available when the customer needs it);
Place (an output has ‘place value’ if it is available where the customer needs it);
Form (an output has ‘form value’ if it is available in the form the customer needs it).
Common Variation
If a process varies from day to day to some degree (has consistent effect on any process yet will conform to a normal distribution)
Special Variation
Arises from specific factors that have an identifiable effect on a process (often caused by an external change)
A feedback loop relates information about outputs from any stage to any stage, making an analysis of the entire process. There are THREE feedback loop situations:
* No feedback loop;
* Special cause only feedback loop;
* Special and common cause feedback loop.
A process with No Feedback Loop
is probably doomed to deterioration and decay. An example is a relation between two people that contains no vehicle (feedback loop) to discuss issues and problems.
A process with a Special Cause Feedback Loop
will exhibit enormous variation in its output. An example is the same relationship: however, the relationship deteriorates through reactions to problems that perceived special by those involved.
A process with Special and Common Cause Feedback Loop
the feedback information is separated into common and special causes, where special causes are resolved and common causes are removed. Thus showing continuous improvement.
USL =
nominal + tolerance
LSL =
nominal – tolerance
specification limits stand for ?
In the past, quality meant as long as an output fell within acceptable limits
The Relationship between VoP and VoC
The relationship is the distribution of output of stable and normally distributed process (VoP) takes no more than half of the tolerance (nominal value) allowed by the specification limits (VoC).
reducing cycle time is best accomplished by:
Streamlined process;
Removing non-value added efforts;
Simplifying the process will result in fewer defects, lower warranty costs, and increased customer satisfaction.
Critical-to-Customer (CTC) Requirements
These are customer requirements, their wants and needs.
Critical to Process (CTP) Requirements
These are the key process input variables, the process parameters that influence other critical-to approaches (CTQ, CTC, etc.) These variables are the upstream variables (X’s), which are the indicators of future performance. The other (Y’s) is the observed and measured downstream defect rates, rework rates, and field failures.
Unit
A unit is an item
CTQ
Critical-to-Quality Characteristics for a product, service, or process: a measure of what is important to a customer (e.g. average and variation in waiting time, percentage of errors in electronic transactions, number of car accidents, etc.) For a given unit, each quality characteristic is defined by translating customer needs in specifications of said unit.
Defect
A defect is a non-performance on quality characteristics of a unit causing customer dissatisfaction. A defect does not necessarily make a unit defective
Defective
A nonconforming unit is a defective unit
Defect Opportunity
This is each circumstance in which a CTQ can fail to be met. Complex units have more opportunities for defects to occur than simple units. E.g. a service has four components  each component has three opportunities for defect  the service has 12 defect opportunities.
DPU:
Defect per Unit
DPO
Defect per Opportunity
DPMO
Defect per Million Opportunities
Formula DPO:
[(total defects) / (total opportunities)
Formula DPMO
[(total defects) / (total opportunities)] x 1,000,000
Formula: % defects
[(total defects) / (total opportunities)] x 100
Formula: Yield (%)
100 – (defects percentage
Independent variable X represents:
the input of a process,
dependent variables Y
the output of a process. X(s) is/are any process input(s) (variables) that is/are involved in producing the output
SDSA Model stands:
(Standardize – Do – Study – Act)
PDSA Model stands:
(Plan – Do – Study – Act)
SDSA Model is a method that helps
employees to standardize a process.
PDSA Model is a method that helps
employees improve and innovate a process by reducing the difference between customers’ needs and process performance
Define phase consists out of :
*Involves the development of a project objective:
-Preparation of the project charter (rationale of the project);
-Understanding of the SIPOC (Suppliers–Inputs–Process–Outputs–Customers);
-Analyzing the VoC data to identify the CTQs important to customers.
Measure phase consists out of :
Involves developing operational definitions for each CTQ variable.
Control phase consist out of :
Using Risk Management and Mistake Proofing;
Standardize successful process revisions;
Control critical X’s;
Documenting control plan.
Transformation Plan
A master black belt helps the executive committee assess to conduct a study to determine the barriers against and the aids for a fruitful transformation into a SS organization. This is developed into a transformation plan (training plan, budget, implementation schedule)