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Employee Education System
Human Factors and Ergonomic Interventions – Making for a Better World
James L. Merlo
Human
Factors
PsychologyAppliedExperimental
Psychology
Human
Engineering
Ergonomics
CognitiveSystemsEngineering
Human
Factors
Engineering
Cognitive Systems Engineering
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:A Discipline at the Crossroads
Psychologists
Study
Humans
Engineers
Design
Machines
EngineeringPsychology
Human-Machine Systems
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 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Partnerships for Healing Environments 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Inconvenient…
Partnerships for Healing Environments 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Sometimes bad design just plain hurts…
Partnerships for Healing Environments 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Partnerships for Healing Environments 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Signs
Partnerships for Healing Environments 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Signs
Partnerships for Healing Environments 2008Darnell, M. J. (2006). Bad Human Factors Designs. Baddesigns.Com
Partnerships for Healing Environments 2008
Regular Insulin N (for NPH Insulin).
What's in the bottle?
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….
Alphabet• 26 letters…• or 8 chunks?
Partnerships for Healing Environments 2008
ABCD EFG HIJK LMNOP
QRS TUV WX YZ
Bad design doesn’t matter…Things are disposable
Partnerships for Healing Environments 2008
