Problem Solving Methods - DFSS, DMADV & IDOV Flashcards
What is DMADV?
define, measure, analyze, design, verify
What is the purpose of the define phase of DMADV?
define the process or product-design goals
What is the purpose of the measure phase of DMADV?
to measure (and identify) critical-to-quality aspects of your process/product
What is the purpose of the analyze phase of DMADV?
to develop a process or product design and evaluate to select the best design
What is the purpose of the design phase of DMADV?
design the new process or product, and to optimize and test your design
What is the purpose of the verify phase?
to verify performance and the ability to meet design goals and customer needs
What is the difference between DMAIC and DMADV?
DMAIC - improve existing processes
DMADV - establish a new process
High level differences between DMAIC & DMADV
DMAIC DMADV
find and fix existing defects design new products and services
eliminate waste discover and prevent defects
logic and creativity logic, creativity, and emotion
make things right compete in emerging/unknown
Working level differences between DMAIC & DMADV
DMAIC DMADV
plants, manufacturing marketing, R&D, design,
reactive, detecting, reducing proactive, preventing, generating
local solution cross-functional/culture change
population to study no population to study
uncertainty from variation uncertainty from unknowns
empirical empirical and theoretical
absolute metrics relative metrics
financial benefits quantifiable challenging to quantify financial
What is IDOV?
identify, design, optimize, validate
a methodology used for designing products and services by focusing on:
1) identifying the customers needs
2) designing a product or service to meet those needs
3) optimizing the product or the service
4) then validating that the solution does meet the needs
What design forms does DMADV or IDOV take?(4)
1) cost
2) manufacturing
3) efficiency
4) maintainability
What are the activities of the identify phase of IDOV? (4)
1) identify customer and product requirements
2) establish business case
3) identify tech requirements, critical to quality variables, and specification limits
4) establish roles, responsibilities, and milestones
What are the tools of the identify phase of IDOV? (6)
1) project charter
2) project plans
3) value stream map
4) customer needs map
5) quality function deployment
6) SIPOC
What are the activities of the design phase of IDOV? (4)
1) developing concept design
2) identifying potential risks
3) identifying design boundaries for each technical requirement
4) plan procurement
What are the tools of the design phase of IDOV? (4)
1) hypothesis tests
2) analysis tools
3) design of experiments
4) FMEA
What are the activities of the optimize phase of IDOV? (4)
1) evaluating process capability to meet critical to quality limits
2) optimizing design
3) optimizing sigma and cost
4) enhancing design for robust and reliable performance
What are the tools of the optimize phase of IDOV? (3)
1) future state map
2) statistical process control
3) control plan
What are the activities of the verify phase of IDOV? (4)
1) prototype testing and validation
2) assessing performance, failure modes, risks and reliability
3) design iterations
4) final phase review
What are the tools of the verify phase of IDOV? (2)
1) FMEA
2) product testing/tools software
What are the differences between IDOV and DMAIC?
IDOV DMAIC
new processes existing processes
evaluates customer needs first compares process perf.
target condition process capability
qual/soft data hard/quant data
What is the product life cycle?
all the stages of development of a product from development to decline and removal from the market
What are the product or service lifecycle phases? (5)
1) Ideation (conceive, specify, assess, plan)
2) Design (define, design, systematic analysis, prototype, test, analyze, verify)
3) Production (finance, launch, manufacture, produce, build, procure, market, sell, relaunch, deliver)
4) Service (use, work, operate, service, maintain, improve, support, upgrade, retire, reclaim, recycle, end of life, disposal)
5) Administration
How is the product life cycle managed?
by portfolio management, product lifecycle management, or product/process lifecycle management functions
What is Design for Six Sigma (DFSS)?
a methodology that focuses on integrating customer requirements into the product design to prevent defects
When is DMADV used in DFSS?
when a process does not exist at our company and needs to be developed
OR
when a process or product does exist and has been optimized, but it still does not meet the level of expectations that the customers have or stays lower than six sigma level
How is IDOV used in DFSS?
used primarily in the manufacturing and product development world to design a new product or service
When is DMAIC used instead of DFSS?
when a product or a process exists at your company, but is not able to meet the specified customer expectations, specifications, or is not able to perform adequately and has not been optimized yet
