<s>
Functional	B-Algorithm
Design	I-Algorithm
is	O
a	O
paradigm	O
used	O
to	O
simplify	O
the	O
design	O
of	O
hardware	O
and	O
software	O
devices	O
such	O
as	O
computer	O
software	O
and	O
,	O
increasingly	O
,	O
3D	O
models	O
.	O
</s>
<s>
A	O
functional	B-Algorithm
design	I-Algorithm
assures	O
that	O
each	O
modular	O
part	O
of	O
a	O
device	O
has	O
only	O
one	O
responsibility	O
and	O
performs	O
that	O
responsibility	O
with	O
the	O
minimum	O
of	O
side	O
effects	O
on	O
other	O
parts	O
.	O
</s>
<s>
Functionally	O
designed	O
modules	O
tend	O
to	O
have	O
low	O
coupling	B-Application
.	O
</s>
<s>
The	O
standard	O
way	O
to	O
assure	O
functional	B-Algorithm
design	I-Algorithm
is	O
to	O
review	O
the	O
description	O
of	O
a	O
module	O
.	O
</s>
<s>
The	O
responsibilities	O
need	O
to	O
be	O
divided	O
into	O
several	O
modules	O
in	O
order	O
to	O
achieve	O
a	O
functional	B-Algorithm
design	I-Algorithm
.	O
</s>
<s>
Other	O
well-known	O
examples	O
are	O
the	O
interrupt	B-General_Concept
vector	I-General_Concept
table	I-General_Concept
and	O
the	O
main	B-General_Concept
loop	I-General_Concept
.	O
</s>
<s>
In	O
these	O
unusual	O
cases	O
,	O
functional	B-Algorithm
design	I-Algorithm
is	O
not	O
recommended	O
by	O
some	O
authorities	O
.	O
</s>
<s>
Instead	O
polymorphism	B-Application
,	O
inheritance	B-Language
,	O
or	O
procedural	O
methods	O
may	O
be	O
preferred	O
.	O
</s>
<s>
Recently	O
several	O
software	O
companies	O
have	O
introduced	O
functional	B-Algorithm
design	I-Algorithm
as	O
a	O
concept	O
to	O
describe	O
a	O
Parametric	O
feature	O
based	O
modeler	O
for	O
3D	O
modeling	O
and	O
simulation	O
.	O
</s>
<s>
In	O
this	O
context	O
,	O
they	O
mean	O
a	O
parametric	B-General_Concept
model	I-General_Concept
of	O
an	O
object	O
where	O
the	O
parameters	O
are	O
tied	O
to	O
real-world	O
design	O
criteria	O
,	O
such	O
as	O
an	O
axle	O
that	O
will	O
adjust	O
its	O
diameter	O
based	O
on	O
the	O
strength	O
of	O
the	O
material	O
and	O
the	O
amount	O
of	O
force	O
being	O
applied	O
to	O
it	O
in	O
the	O
simulation	O
.	O
</s>
<s>
It	O
is	O
hoped	O
that	O
this	O
will	O
create	O
efficiencies	O
in	O
the	O
design	O
process	O
for	O
mechanical	O
and	O
perhaps	O
even	O
architectural/structural	O
assemblies	O
by	O
integrating	O
the	O
results	O
of	O
finite	B-Application
element	I-Application
analysis	I-Application
directly	O
to	O
the	O
behavior	O
of	O
individual	O
objects	O
.	O
</s>
