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April 7

April 7. This Friday: One hour of presentations (not panel) in lieu of this class. Turn in short commentary for grade. HFAP Program: http ://hfapconference.com / Questions about design project? Data collection?

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April 7

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  1. April 7 • This Friday: One hour of presentations (not panel) in lieu of this class. Turn in short commentary for grade. • HFAP Program: http://hfapconference.com/ • Questions about design project? Data collection? • http://www.nationaldefensemagazine.org/blog/Documents/20120119%20JCIDS%20Process%20Flow%2024x60%20rev%201%200.pdf (Joint Capabilities Integration Development System – JCIDS) • Quiz Review • Back to the House of Quality Examples • Fatigue and Circadian Rhythms

  2. Strategies for Grounding Your Design in Research Trade-Off Analysis House of Quality But first… https://www.youtube.com/watch?v=mnUEDA6drB8

  3. - The University of Colorado’s “Energy Efficient Engineers”, 2012

  4. House of Quality Example Steel Parts Aluminum Parts Auto Exposure Auto Focus Customer Requirements Customer Importance 2 50 Light weight 5 8 7 30 Easy to use 4 8 5 3 20 Reliable 330 260 340 270 Target Values

  5. Variant of House of Quality

  6. Importance Competitive assessment House Of Quality Tradeoff Matrix Product characteristics Relationship matrix Customer requirements Technical assessment and target values

  7. Source: Hauser, J.R., & Clausing, D. (1988). The House of Quality. Harvard Business Review, May-June, 2-14. Retreived from www.csuchico.edu/~jtrailer/HOQ.pdf.

  8. ProcessRequirements FunctionalRequirements House ofQuality (QFD Matrix 1) Design Characteristics House ofQuality (QFD Matrix 2) OperationalCharacteristics Customer CTQs Customer Requirements House ofQuality (QFD Matrix 3) Process Requirements House ofQuality (QFD Matrix 4) Functional Requirements Design Characteristics Functional CTQs Technical CTQs System CTQs ControlCTQs Cascadethe Houses to “derive your requirements”: CTQ = Critical-To-Quality

  9. Two Reasons You MayFeel Sleepy

  10. Melatonin Factoids

  11. The Hormone Melatonin

  12. Adenosine http://thebrain.mcgill.ca/flash/a/a_11/a_11_m/a_11_m_cyc/a_11_m_cyc.html http://thebrain.mcgill.ca/flash/i/i_03/i_03_m/i_03_m_par/i_03_m_par_cafeine.html

  13. Stress Effects on Cognition How does fatigue affect performance?

  14. The Yerkes-Dodson Law High & low stress/arousal can lead to impaired performance by reducing resource availability Novice or Expert or

  15. Stress Effects on Cognition • If your attention is reduced, information processing in cognitive capacity will suffer. The Yerkes-Dodson Law: Tunneling & lapsing can occur here

  16. Fatigue Effects on Cognition • attentional lapses • some slowing of information processing Attention & working memory are compromised.

  17. Reduced Attentional Resources Cause… • Lapses in attention • Slowing of information processing • Information not processed as ‘deeply’ • Attentional narrowing/tunneling • “Satisficing” • Task shedding • Reliance on automated performance • Reliance on schemas/templates

  18. Stress Effects on Cognition • High Arousal or Preoccupation • Reduced attentional capacity • Attentional tunneling • Perceptual • Working memory • Reduced working memory capacity • Less effective memory storage & recall Compromised: Attention, Working Memory, Retrieval from Long Term Memory

  19. Hancock & Warm’s Model of Stress Effects on Performance Stress is operationalized as level of arousal

  20. A - physiological function B - behavior/performance C - subjective comfort D - normative zone Hancock, P.A. & Szalma, J.L. (2006). Stress and Neuroergonomics. In: R. Parasuraman and M. Rizzo (Eds.), Neuroergonomics: The brain at work. Oxford: Oxford University Press (pp 195-206)

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