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DAJ Inc. |
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DAJ Inc. |
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Dr. Daniel A. Johnson
Certified Professional Ergonomist
Certified XL Tribometrist
Specializing In These Areas:
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| Jurisdictions in which Dr. Johnson has testified in trial or deposition:
Alaska, California, Colorado, Florida, Kansas, Missouri, Montana, Nevada, Oregon, Washington State and Washington DC (House of Representatives).
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Mailing Address: |
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*Rates Provided Upon Request* |
Email Dr. Johnson: DAJINC1@mac.com
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Page Links:
What is Human Factors? (Ergonomics)
When psychology is applied to the design of equipment or the environment (such as roadways) it is called human factors, or ergonomics. In the design phase we work with engineers to ensure that products and the environment are built so as to take into account the abilities and limitations of those using them.
In the post-injury phase we, as forensic ergonomists, analyze the product or environment to determine why a person thought or behaved in a manner that brought about the injury.
Most injury events (falls, highway collisions, on-the-job injuries) occur because of how people think and behave. Psychology is the study of how people think and behave. It is relevant to most injury events.
Engineering is the study of how “things” behave – how strong a material is, its failure rate over time, etc. It, too, may be relevant to a given injury event. But often injury events occur in the absence of any structural or mechanical failure.
To use an engineer to explain why and how a person behaved in a certain instance would be as inadvisable as asking a psychologist to explain why a structure or mechanical device failed.
Other Related Sites:
Human Factors and Ergonomics Society (HFES)
Board of Certification in
Professional Ergonomics
Excel Tribometers, LLC
