<s>
The	O
Falcon	B-Algorithm
Framework	I-Algorithm
(	O
or	O
the	O
Falcon	B-Algorithm
Framework	I-Algorithm
for	O
Concurrent	O
Design	O
)	O
was	O
Mentor	O
Graphics	O
 '	O
second	O
generation	O
software	O
environment	O
.	O
</s>
<s>
Whereas	O
their	O
original	O
environment	O
had	O
been	O
Pascal-based	O
and	O
ran	O
exclusively	O
on	O
the	O
Apollo/Domain	B-Device
platform	O
,	O
the	O
Falcon	B-Algorithm
Framework	I-Algorithm
was	O
written	O
in	O
C++	B-Language
and	O
was	O
portable	O
to	O
other	O
platforms	O
,	O
notably	O
Unix	B-Application
.	O
</s>
<s>
The	O
Falcon	B-Algorithm
Framework	I-Algorithm
was	O
marketed	O
as	O
a	O
key	O
technology	O
for	O
concurrent	O
engineering	O
in	O
the	O
EDA	O
realm	O
.	O
</s>
<s>
However	O
,	O
it	O
was	O
better	O
characterized	O
as	O
a	O
software	O
application	B-Application
framework	I-Application
.	O
</s>
<s>
The	O
key	O
components	O
of	O
the	O
Falcon	B-Algorithm
Framework	I-Algorithm
were	O
:	O
</s>
<s>
Later	O
dubbed	O
the	O
CUI	O
for	O
the	O
Common	O
User	O
Interface	O
,	O
this	O
component	O
was	O
built	O
on	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
and	O
featured	O
an	O
OSF/Motif	B-Application
-like	O
interface	O
.	O
</s>
<s>
A	O
C-Like	O
scripting	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
A	O
spreadsheet-like	O
programming	O
environment	O
featuring	O
many	O
graphical	O
widgets	O
.	O
</s>
<s>
A	O
graphical	O
tool	O
known	O
as	O
The	O
Design	O
Manager	O
for	O
managing	O
design	O
components	O
and	O
The	O
Registrar	O
for	O
editing	O
the	O
Falcon	B-Algorithm
Frameworks	I-Algorithm
registry	O
.	O
</s>
<s>
Another	O
key	O
part	O
of	O
the	O
Falcon	B-Algorithm
Framework	I-Algorithm
was	O
the	O
Open	O
Door	O
program	O
.	O
</s>
<s>
The	O
Falcon	B-Algorithm
Framework	I-Algorithm
was	O
the	O
key	O
feature	O
of	O
Mentor	O
Graphics	O
 '	O
8.0	O
release	O
and	O
was	O
initially	O
released	O
in	O
1991	O
.	O
</s>
<s>
Subsequently	O
,	O
it	O
has	O
been	O
ported	O
to	O
Windows	B-Device
NT	I-Device
.	O
</s>
<s>
A	O
particularly	O
eccentric	O
feature	O
introduced	O
in	O
the	O
Falcon	B-Algorithm
Framework	I-Algorithm
was	O
mouse	O
gestures	O
using	O
the	O
middle	O
mouse	O
button	O
.	O
</s>
