<s>
The	O
COCO	B-Application
Simulator	I-Application
is	O
a	O
free-of-charge	O
,	O
non-commercial	O
,	O
graphical	O
,	O
modular	O
and	O
CAPE-OPEN	B-Application
compliant	O
,	O
steady-state	O
,	O
sequential	O
simulation	B-Application
process	O
modeling	O
environment	O
.	O
</s>
<s>
It	O
was	O
originally	O
intended	O
as	O
a	O
test	O
environment	O
for	O
CAPE-OPEN	B-Application
modeling	O
tools	O
but	O
now	O
provides	O
free	O
chemical	O
process	O
simulation	B-Application
for	O
students	O
.	O
</s>
<s>
The	O
COCO	B-Application
Simulator	I-Application
uses	O
a	O
graphical	O
representation	O
,	O
the	O
Process	O
Flow	O
Diagram	O
(	O
PFD	O
)	O
,	O
for	O
defining	O
the	O
process	O
to	O
be	O
simulated	O
.	O
</s>
<s>
Clicking	O
on	O
a	O
unit	O
operation	O
with	O
the	O
mouse	O
allows	O
the	O
user	O
to	O
edit	O
the	O
unit	O
operation	O
parameters	O
it	O
defines	O
via	O
the	O
CAPE-OPEN	B-Application
standard	O
or	O
to	O
open	O
the	O
unit	O
operation	O
's	O
own	O
user	O
interface	O
,	O
when	O
available	O
.	O
</s>
<s>
This	O
interoperability	O
of	O
process	O
modeling	O
software	O
was	O
enabled	O
by	O
the	O
advent	O
of	O
the	O
CAPE-OPEN	B-Application
standard	O
.	O
</s>
