Decision Making Decision Framework Context Criticality Concurrent Environment Variation Decision Matrix General discussion Pugh Matrix Scoring FMEA Four Blocker Best Practices and Pitfalls

Matrix example

Decision Matrix Tools Types of Matrix Tools QFD- Formative tool, positive Decision Matrix- selection FMEA- Assessment, negative Four Blocker- Quick selection Tool Fundamentals Relate solutions to criteria Scoring Weighting Best Practices and Pitfalls

QFD Simplified Form QFD Example QFD a structured way to identify best means to meet customer CTQ’s or requirements

Helps Make Selection

Pugh Matrix Example- Selection and Concept Improvement

Examples from Last Year

This Form Includes Most of the Features of a FMEA, You will be using a simplified FMEA This FMEA Form is Relatively Complete. You Will be Using a Simplified Form

FMEA Example

Chance of Working Ease of Implementation EasyHard Good BetPossible Unlikely Four Blocker Screening- easy and quick initial screening tool Example- Help a one arm man lift a heavy box Special lift strap Bionic Arm

Pitfalls: Long “laundry” list of criteria Two or more candidates with nearly identical scores Putting too much trust in the tool Self serving, ie, make the matrix support your bias The Tool becomes the end not the means Best Practices: Use only critical/ important criteria(some criteria like safety can be Go/No Go) 9,3,1 or Pugh +- scoring; make sure you differentiate Reevaluate scores, weightings and potential design improvements Keep it simple; do what is needed for the decision but no more Make the Tools Work for You