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Human Factors and Ergonomic Interventions – Making for a Better World. James L. Merlo. Cognitive Systems Engineering. Cognitive Systems Engineering. Human Factors Psychology. Engineering Psychology. Applied Experimental Psychology. Human Factors Engineering. Human Engineering.
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Human Factors and Ergonomic Interventions – Making for a Better World James L. Merlo Employee Education System
Cognitive Systems Engineering Cognitive Systems Engineering Human Factors Psychology Engineering Psychology Applied Experimental Psychology Human Factors Engineering Human Engineering Ergonomics
Human Factors Defined • Human Factors discovers and applies information about human behavior, abilities, limitations, and other characteristics to the design of tools, machines, systems, tasks, jobs, and environments for productive, safe, comfortable, and effective human use (Sanders and McCormick, 1993) • Human Factors IS NOT … • Just using checklists and guidelines • Just using oneself as the model for designing things • Just common sense
Engineering Psychology Engineers Psychologists Study Design Machines Humans Human-Machine Systems Engineering Psychology: A Discipline at the Crossroads Psychologists study human behavior... Engineers design things... Engineering Psychologists design human-centered systems
Cost of Ignoring Human Factors is Poor Quality! • Increased probability of accidents and errors • Less spare capacity to deal with emergencies • Increased labor turnover • Lower productive output • Increases in lost time • Higher medical costs • Higher material costs • Increased absenteeism • Low quality work • Injuries, strains
Everyone knows the stovetop examples… Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Inconvenient… Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Sometimes bad design just plain hurts… Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Signs Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Signs Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Partnerships for Healing Environments 2008 Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
What's in the bottle? Regular Insulin N (for NPH Insulin). Partnerships for Healing Environments 2008
What about the science… • CAPITAL LETTERS • WORD • EASIER • FASTER • BUT BECOMES MORE DIFFICULT WHEN PART OF A SENTENCE BECAUSE… • We use context to read and the shape matters Partnerships for Healing Environments 2008
Working Memory • Size 7 +/- 2 chunks • VAFBICIADODIRA • VA FBI CIA DOD IRA • Area codes • Credit card numbers are divided into chunks…. • Expert memories…or really good chunkers Partnerships for Healing Environments 2008
Doubting me still…. ABCD EFG HIJK LMNOP QRS TUV WX YZ • Alphabet • 26 letters… • or 8 chunks? Partnerships for Healing Environments 2008
Bad design doesn’t matter…Things are disposable Partnerships for Healing Environments 2008