<s>
Technical	B-Application
Illustration	I-Application
is	O
illustration	O
meant	O
to	O
visually	O
communicate	O
information	O
of	O
a	O
technical	O
nature	O
.	O
</s>
<s>
Technical	B-Application
illustrations	I-Application
can	O
be	O
components	O
of	O
technical	B-Application
drawings	I-Application
or	O
diagrams	O
.	O
</s>
<s>
Technical	B-Application
illustrations	I-Application
in	O
general	O
aim	O
"	O
to	O
generate	O
expressive	O
images	O
that	O
effectively	O
convey	O
certain	O
information	O
via	O
the	O
visual	O
channel	O
to	O
the	O
human	O
observer	O
"	O
.	O
</s>
<s>
Technical	B-Application
illustrations	I-Application
generally	O
have	O
to	O
describe	O
and	O
explain	O
the	O
subjects	O
to	O
a	O
nontechnical	O
audience	O
.	O
</s>
<s>
Today	O
,	O
technical	B-Application
illustration	I-Application
can	O
be	O
broken	O
down	O
into	O
three	O
categories	O
based	O
on	O
the	O
type	O
of	O
communication	O
:	O
</s>
<s>
This	O
type	O
of	O
technical	B-Application
illustration	I-Application
contains	O
simple	O
terminology	O
and	O
symbols	O
that	O
can	O
be	O
understood	O
by	O
the	O
lay	O
person	O
and	O
is	O
sometimes	O
called	O
creative	O
technical	O
illustration/graphics	O
.	O
</s>
<s>
Specialized	O
engineering	O
or	O
scientific	O
communication	O
:	O
used	O
by	O
engineers/scientists	O
to	O
communicate	O
with	O
their	O
peers	O
and	O
in	O
specifications	B-Application
.	O
</s>
<s>
This	O
use	O
of	O
technical	B-Application
illustration	I-Application
has	O
its	O
own	O
complex	O
terminology	O
and	O
specialized	O
symbols	O
;	O
examples	O
are	O
the	O
fields	O
of	O
atomic	O
energy	O
,	O
aerospace	O
and	O
military/defense	O
.	O
</s>
<s>
Examples	O
of	O
this	O
type	O
of	O
technical	B-Application
illustration	I-Application
are	O
illustrations	O
found	O
in	O
user/operator	O
documentation	O
.	O
</s>
<s>
exploded	B-Application
view	I-Application
drawings	I-Application
,	O
</s>
<s>
Technical	B-Application
illustration	I-Application
uses	O
several	O
basic	O
mechanical	O
drawing	O
configurations	O
called	O
axonometric	O
projection	O
.	O
</s>
<s>
many	O
types	O
of	O
perspective	B-Architecture
projections	I-Architecture
(	O
with	O
one	O
,	O
two	O
,	O
or	O
three	O
vanishing	B-General_Concept
points	I-General_Concept
)	O
.	O
</s>
<s>
Technical	B-Application
illustration	I-Application
and	O
computer-aided	B-Application
design	I-Application
can	O
also	O
use	O
3D	O
and	O
solid-body	O
projections	O
,	O
such	O
as	O
rapid	B-Device
prototyping	I-Device
.	O
</s>
