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biological characteristics to the specification,
design, evaluation, operation, and maintenance of
products and systems to enhance safe, effective
by individuals, group, and organization.
Focus of human factors : Human beings and their
interaction with products, equipment, facilities,
procedures, and environment.
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Review
Majors objectives of human factors for operation
phase
Enhance working efficiency and increase
productivity
Reduce fatigue
Reduce or manage human error ,and
promote safety
A project supported by AIRBUS and the CAAC
June 2007
2. Research methodology for
Human Factors
How do we get the objectives?
How do we improve aviation safety?
How do we know:
What happening in accident
How happening
Why happening
How and what we will do to avoid it happening
again.
Answer: research
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Human Factors is an empirical science
Basic Methods of HF research
Procedures for doing research
About model
About statistical techniques
Conclusion: key of research in human factors
Example of analysis model : HFACS
Research methodology for Human Factors
A project supported by AIRBUS and the CAAC
June 2007
Human Factors is an empirical science
The application of relevant information about
human capabilities and behavior to the design of
objects and operation of systems
This body of relevant information is largely based
upon experimentation and observation.
Human factors is ……
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Basic Methods of HF research
General
Descriptive studies
Experimental research
Evaluation research
A project supported by AIRBUS and the CAAC
June 2007
Basic Methods of HF research
General
all researches involve basically the same set of
decisions
Choosing a research setting
Selecting variables
Choosing a sample of subjects
Deciding how to collect data
Deciding how to analyze the data
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Basic Methods of HF research
Descriptive Studies
They represent the basic data upon which other
studies may be based.
Seek to characterize a population in terms of
certain attributes
Examples include:
– Surveys of the dimensions of people’s bodies
– Hearing loss by age, occupation, etc.
A project supported by AIRBUS and the CAAC
June 2007
Basic Methods of HF research
Descriptive Studies
Are often carried out to assess the magnitude
and scope of a problem before solutions are
suggested.
– Example: a survey of of operators to gather opinions on
design deficiencies and operational problems
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Basic Methods of HF research
Experimental Research
The concern is whether a variable(s) has any effect upon
behavior and the the direction of that effect.
Decisions as to what to study, and how to study it,
usually based upon a practical situation which presents a
design problem
Need to define dependent and independent variables
Example
– Determine the impact of noise on human performance on reading.
– Determine the memory performance of pilot or ATC for different
speech of number such as 1234
– Find out human response time to light resource under different
illumination.
– Find out reading error rates for different display of instrument
figure.
A project supported by AIRBUS and the CAAC
June 2007
Basic Methods of HF research
Evaluation Research
Evaluate the performance, effectiveness, or
usability of an existing system or product.
Need to clearly define independent variables and
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