ENGR131_FA10_Purzer_6a

ENGR131_FA10_Purzer_6a - 6A Prof. Purzer & GTA Masaki...

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Section 002 1 6A
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Design Explain and develop design goals and criteria Identify user needs Name and describe the stages of an interview Interview a user to gather information that is important to the design process 2
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Example of an institutional goal: “Position Purdue among the great research universities of the world.” Q: How do we know if Purdue reaches this goal? A: We have to restate the goal so that something can be measured.
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The Subaru plant in Lafayette has four large air compressors on site that drive robotics and compressed air tools. measure air leakage airflow meters in line at each department 4
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Goals Criteria Quality of decisions Remember: Claim Evidence Quality of reasoning Goals define what you want or need (the “results”) If you don’t have goals, how will you generate solutions? Criteria help you make decisions If you don’t have criteria, how will you know which solutions are desirable, feasible, viable? How will you know how to improve solutions? 5
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The correct answer is the right question… I’m hosting a birthday for 25 four -year-olds I need to eat between classes I’m taking my partner out for our anniversary I’m having lunch with one person allergic to wheat, two on protein diets, one won’t eat spicy food, one allergic to sesame, and one is a Vegan You must ask, “the best for what?” Criterion: a basis for a decision
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A criterion is a standard on which a decision is based, e.g.: MUST criteria (called constraints) E.g., MUST fit in a 2x2x2 space, be less than $20 WANT criteria (things we would like) E.g., “wouldn’t it be cool if…” NEGATIVE criteria (things we don't want) Goals are about results. Criteria are about decisions.
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1. Criteria should be clear (including clear as to what is better) and measurable. 2. Criteria should be measurable and help distinguish options (A vs. B) In your teams, assign a recorder, timekeeper, encourager/gatekeeper
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Exercise 1. In your teams, write clear and measurable criteria to replace these vague criteria. Inexpensive Small Easy to assemble Aesthetically pleasing Lightweight Safe Durable Environmentally friendly Discuss in team
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Remember from the problem scoping exercise, your goal was to design an energy efficient coffee-maker . In your team determine:
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ENGR131_FA10_Purzer_6a - 6A Prof. Purzer & GTA Masaki...

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