<s>
Computer	O
Aided	O
Industrial	O
Design	O
(	O
CAID	O
)	O
is	O
a	O
subset	O
of	O
computer-aided	B-Application
design	I-Application
(	O
CAD	B-Application
)	O
software	O
that	O
can	O
assist	O
in	O
creating	O
the	O
look-and-feel	O
or	O
industrial	O
design	O
aspects	O
of	O
a	O
product	O
in	O
development	O
.	O
</s>
<s>
CAID	O
programs	O
tend	O
to	O
provide	O
designers	O
with	O
improved	O
freedom	O
of	O
creativity	O
compared	O
to	O
typical	O
CAD	B-Application
tools	O
.	O
</s>
<s>
Such	O
models	O
can	O
then	O
be	O
saved	O
in	O
formats	O
for	O
more	O
convenient	O
exchange	O
with	O
others	O
(	O
such	O
as	O
OBJ	O
for	O
virtual	O
viewing	O
in	O
3D	O
graphics	O
programs	O
)	O
or	O
manufacturing	O
(	O
such	O
a	O
STL	O
to	O
create	O
a	O
real-life	O
model	O
via	O
a	O
rapid	B-Device
prototyping	I-Device
machine	O
)	O
.	O
</s>
<s>
When	O
product	O
pre-requisites	O
and	O
parameters	O
have	O
been	O
more	O
completely	O
defined	O
,	O
output	O
from	O
the	O
CAID	O
software	O
can	O
be	O
imported	O
into	O
a	O
CAD	B-Application
program	I-Application
for	O
pre-production	O
testing	O
,	O
adjustment	O
,	O
and	O
generation	O
of	O
technical	O
drawings	O
and	O
manufacturing	O
data	O
such	O
as	O
CNC	O
tool-paths	O
.	O
</s>
<s>
CAID	O
is	O
far	O
more	O
conceptual	O
and	O
less	O
technically	O
focused	O
than	O
CAD	B-Application
.	O
</s>
<s>
CAID	O
programs	O
tend	O
to	O
offer	O
more	O
tools	O
that	O
allow	O
a	O
designer	O
to	O
freely	O
express	O
themselves	O
with	O
more	O
organic	O
shapes	O
and	O
complex	O
curves	O
,	O
whilst	O
CAD	B-Application
software	I-Application
tends	O
to	O
be	O
more	O
focused	O
on	O
tools	O
for	O
the	O
simple	O
curves	O
and	O
straight	O
lines	O
more	O
suitable	O
for	O
easy	O
manufacturing	O
.	O
</s>
<s>
CAD	B-Application
implementations	O
have	O
evolved	O
dramatically	O
since	O
initial	O
3D	O
offerings	O
in	O
the	O
1970s	O
,	O
which	O
were	O
typically	O
limited	O
to	O
producing	O
drawings	O
similar	O
to	O
hand-drafted	O
output	O
.	O
</s>
