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Why have an invention design process? The invention design process The day’s exercise

Why have an invention design process? The invention design process The day’s exercise. A bit about the invention design process. In product design is referred to as PREP (Peer-Review Evaluation Process) It seems complicated, but it is simple It has both individual and team components.

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Why have an invention design process? The invention design process The day’s exercise

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  1. Why have an invention design process? • The invention design process • The day’s exercise

  2. A bit about the invention design process • In product design is referred to as PREP (Peer-Review Evaluation Process) • It seems complicated, but it is simple • It has both individual and team components

  3. Invention Design Process Process by which 4 individuals develop ideas and then share them as a team…so that the team can select the best idea. The Invention Design Process helps obtain everyone’s input/buy-in and brings the team’s diversity of knowledge/ experience to bear on the issue. The process takes a team from many ideas to one idea to pursue.

  4. Invention Design Process

  5. Individual Thought Invention project idea generation Information gathering Invention Statement Dissection of Invention Statement Concepting Concept Evaluation Research Test & Refine Build Prototypes

  6. Peer-Review Invention project idea generation Information gathering Invention Statement Dissection of Invention Statement Concepting Concept Evaluation Research Test & Refine Build Prototypes

  7. Peer-Review Peer-Review (Team of 4 people) Do “the work” (idea generation, research, drafting, experimentation, etc.) associated with that step in the invention design process Pass your work to the team member on your left for him/her to review (continue until your work has gone full-circle) Review others’ comments on your work Discuss the ideas and comments to identify the most important factors that will help the team select the best idea Determine the best idea using the most important factors (weighted selection)…there can be only one! Proceed as individuals to do “the work” for the next step in the invention design process

  8. Invention project idea generation Think of problems and inventions that could address them… • Individual members of the team generate ideas: • Watermelon ripeness evaluator • Automatic potato-peeler • Perpetual motion machine Peer’s comments: “There’s already an automatic potato peeler!”…“Doesn’t perpetual motion violate the laws of physics!?” Important factors: Uniqueness of idea, feasibility Potato-peeler and perpetual motion machine ruled-out! Peer-Review (Pass, Review, Discuss, Determine) Team selects: Watermelon ripeness evaluator

  9. Invention project idea generation Information gathering Invention Statement Peer-Review Dissection of Invention Statement Concepting Concept Evaluation Research Test & Refine Build Prototypes

  10. Invention Statement Peer-Review Dissection of Invention Statement Concepting Concept Evaluation Research Test & Refine Build Prototypes

  11. Invention design step & explanation Sample individual work from Watermelon project

  12. Peer-Review & explanation Peer-Review result for Watermelon project

  13. Invention Statement • Total problem definition • All components of the invention problem • The Who, What, Where and How Much of the invention Sample individual work from Watermelon project “Shoppers would use it in the store.” “It should show how ripe a watermelon is.” “It has to be cheap!”

  14. Peer-Review & explanation Peer’s comments: “What does ‘cheap’ mean?”… “How will it show ripeness?”…“Will shoppers really use it?” Important factors: Cost, accuracy, size, output, aesthetics Peer-Review result: Invention Statement for Project As a team, we will invent a portable, handheld watermelon ripeness evaluator to be used primarily by farmers and supermarkets. The durable, compact unit will be made for under $200, be battery powered, easy to operate, and will accurately (95% confidence interval) display the ripeness of any variety of watermelon in less than five seconds.

  15. Dissection of Invention Statement The WHATs:What are the approaches to achieving the main goal (what the invention does)? What actions are needed for each approach? Sample individual work from Watermelon project What are the different approaches to assess the ripeness of a watermelon and what are the required actions? Approach #2: Weight v. size Weigh Measure Display result 4. Embodiment Approach #1: Thumping Thump Pick-up sound/voltage Analyze sound Display result 5. Embodiment

  16. Peer-Review & explanation Discuss/determine which approach (Thump or Weight) given important factors (cost, accuracy, size, output, aesthetics) and organize ideas of the actions that have to happen (the whats) for the invention to work for the selected approach Peer-Review result: Approach for Watermelon project Approach #2: Weight v. size is ruled-out for accuracy reasons Approach #1: Thumping Thump Pick-up sound/voltage Analyze sound Display result 5. Embodiment

  17. The WHATs: a good way to divide up a team and tackle a complex project

  18. Concepting The HOWs (solutions): How can the action be achieved? What are the HOWs to come-up with THE HOW? • Sample individual work from Watermelon project • How can we THUMP a watermelon to assess its ripeness? • Motor • Pneumatic • Solenoid • Spring • Finger

  19. Peer-Review & explanation Discuss/determine which solution is the best way to achieve the action. Which HOW, given important factors (cost, accuracy, size, output, aesthetics), is THE HOW • Peer-Review result for Watermelon project • Pneumatic and Solenoid are ruled-out for cost reasons, and finger is ruled-out for accuracy reasons • Motor and Spring are both possibilities

  20. The WHATs and HOWs: all of them

  21. Concept evaluation Evaluation of solutions based on important factors (i.e.: potential beneficiary’s needs/end-customer requirements) Make sketches and models to see how different solutions would achieve desired action Employ experimentation & analysis (e.g.: bench experiments and weighted-selection charts) to select THE HOW. Sample individual work from Watermelon project Sketch and model of a motor to see how it would thump Sketch and model of a spring to see how it would thump

  22. Sample individual work from Watermelon project (continued) Weighted selection chart

  23. Peer-Review & explanation Share results of experiments and analysis to determine which solution is the best way to achieve the action. Which HOW, given important factors (cost, accuracy, size, output, aesthetics), is THE HOW. Peer-Review result for thumping Spring

  24. Research Search-out examples of your solution being used to perform the desired action or a similar action to determine if solution can be off-the-shelf or needs to be built from scratch Can include discussion with experts and end-customer • Sample individual work from Watermelon project • Spring found that can perform desired action • Motor found that can perform desired action (even though motor ruled-out in previous step, it was still researched)

  25. Peer-Review & explanation Share results of research to determine if the solution can be purchased or a unique design needs to be created. Peer-Review result: Research for thumping Off-the-shelf spring available

  26. Test & Refine Identify risks of solutions and countermeasures • Sample individual work from Watermelon project • Risks for spring: • Spring breaks • Loss of manual dexterity to trigger spring • Countermeasures for spring: • Alternative solution (motor)

  27. Peer-Review & explanation Share results of risks/countermeasures research to determine if the solution is still viable Peer-Review result: Testing and Refinement for thumping Spring is still viable

  28. Build Prototypes Develop sketches for each module to be developed Sample individual work from Watermelon project Parts are machined/ordered according to drawings and then assembled.

  29. Peer-Review & explanation Prototypes are tested, results are evaluated and refinements are made if necessary. Peer-Review result for Watermelon project Spring thumper performs as expected.

  30. Invention design exercise Given the limited amount of time, this invention design exercise is significantly more restrictive than a normal invention design exercise. Your invention statement will be given to you and is also the only action (THE WHAT) your invention needs to perform. THE HOW is up to you. You will perform this exercise in teams (4 teams of 4, 2 teams of 3)

  31. Invention Statement: • Invent a taco shell carrier, using a single piece of 14x17 paper, that will allow for said taco shell to descend from a height of approximately 30 feet to ground level without breaking. • Rules • No adhesives • You may cut & fold the sheet of paper • The paper must remain one continuous sheet • Use the invention design process and peer review!

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