From Page 39
(3) Very good.
Okay, so far we have moved from a general discussion of man's
information processing capabilities and limitations to several practical
examples of how HFE specialists handle factors that affect these
capabilities and limitations.
Now, let's talk about several other
characteristics of man that must be taken into account when designing a
system.
If you'll remember, way back in Lesson 6 we talked about
anthropometry, the 'science' of dealing with the measurement and physical
features and functions of the body. Man's physical dimensions are important
aspects of any man-machine interface and must be considered very early in
the design stages of the process.
In Lesson 6 an important design principle used most often by the
military is referred to as 'designing for the adjustable range.'
In the
military services, what are the general design limits imposed when designing
for the adjustable range?
(1) Design and sizing specifications for equipment insure that at least 90
percent of the male and female user population will be accommodated. Turn
to Page 83.
(2) In the military services, design limits are based upon a range from the
5th percentile female to the 95th percentile of male values. Turn to Page
7.
(3) Design limits are based upon a range from 0 percentile male to the 90th
percentile male. Turn to Page 85.
(4) All of the answers are correct. Turn to Page 26.
From Page 63
(2) While it's true that as technological advances are made, increasing
demands are placed on the operators of these technically sophisticated
systems, there is a better answer listed here. Return to Page 63.
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