<s>
In	O
computer	B-General_Concept
programming	I-General_Concept
,	O
an	O
application	B-Application
framework	I-Application
consists	O
of	O
a	O
software	B-Architecture
framework	I-Architecture
used	O
by	O
software	B-Application
developers	I-Application
to	O
implement	O
the	O
standard	O
structure	O
of	O
application	B-Application
software	I-Application
.	O
</s>
<s>
Application	B-Application
frameworks	I-Application
became	O
popular	O
with	O
the	O
rise	O
of	O
graphical	B-Application
user	I-Application
interfaces	I-Application
(	O
GUIs	B-Application
)	O
,	O
since	O
these	O
tended	O
to	O
promote	O
a	O
standard	O
structure	O
for	O
applications	O
.	O
</s>
<s>
Programmers	B-Application
find	O
it	O
much	O
simpler	O
to	O
create	O
automatic	O
GUI	B-Application
creation	O
tools	O
when	O
using	O
a	O
standard	O
framework	O
,	O
since	O
this	O
defines	O
the	O
underlying	O
code	O
structure	O
of	O
the	O
application	O
in	O
advance	O
.	O
</s>
<s>
Developers	B-Application
usually	O
use	O
object-oriented	B-Language
programming	I-Language
(	O
OOP	O
)	O
techniques	O
to	O
implement	O
frameworks	O
such	O
that	O
the	O
unique	O
parts	O
of	O
an	O
application	O
can	O
simply	O
inherit	O
from	O
classes	O
extant	O
in	O
the	O
framework	O
.	O
</s>
<s>
Apple	O
Computer	O
developed	O
one	O
of	O
the	O
first	O
commercial	O
application	B-Application
frameworks	I-Application
,	O
MacApp	B-Operating_System
(	O
first	O
release	O
1985	O
)	O
,	O
for	O
the	O
Macintosh	B-Device
.	O
</s>
<s>
Originally	O
written	O
in	O
an	O
extended	O
(	O
object-oriented	B-Language
)	O
version	O
of	O
Pascal	B-Application
termed	O
Object	B-Language
Pascal	I-Language
,	O
it	O
was	O
later	O
rewritten	O
in	O
C++	B-Language
.	O
</s>
<s>
Another	O
notable	O
framework	O
for	O
the	O
Mac	B-Device
is	O
Metrowerks	O
 '	O
PowerPlant	B-Library
,	O
based	O
on	O
Carbon	B-Operating_System
.	O
</s>
<s>
Cocoa	B-Operating_System
for	O
macOS	B-Application
offers	O
a	O
different	O
approach	O
to	O
an	O
application	B-Application
framework	I-Application
,	O
based	O
on	O
the	O
OpenStep	B-Operating_System
framework	O
developed	O
at	O
NeXT	O
.	O
</s>
<s>
Free	B-License
and	I-License
open-source	I-License
software	I-License
frameworks	O
exist	O
as	O
part	O
of	O
the	O
Mozilla	B-Application
,	O
LibreOffice	B-Application
,	O
GNOME	B-Application
,	O
KDE	B-Application
,	O
NetBeans	B-Application
,	O
and	O
Eclipse	B-Application
projects	O
.	O
</s>
<s>
Microsoft	O
markets	O
a	O
framework	O
for	O
developing	O
Windows	B-Application
applications	I-Application
in	O
C++	B-Language
called	O
the	O
Microsoft	B-Language
Foundation	I-Language
Class	I-Language
Library	I-Language
,	O
and	O
a	O
similar	O
framework	O
for	O
developing	O
applications	O
with	O
Visual	B-Language
Basic	I-Language
or	O
C#	B-Application
,	O
named	O
.NET	B-Application
Framework	I-Application
.	O
</s>
<s>
Several	O
frameworks	O
can	O
build	O
cross-platform	B-Operating_System
applications	O
for	O
Linux	B-Application
,	O
Macintosh	B-Device
,	O
and	O
Windows	B-Application
from	O
common	O
source	O
code	O
,	O
such	O
as	O
Qt	B-Language
,	O
the	O
widget	B-Library
toolkits	I-Library
wxWidgets	B-Language
,	O
Fox	B-Language
toolkit	I-Language
,	O
or	O
Eclipse	B-Application
Rich	O
Client	O
Platform	O
(	O
RCP	O
)	O
.	O
</s>
<s>
Oracle	B-Language
Application	I-Language
Development	I-Language
Framework	I-Language
(	O
Oracle	B-Language
ADF	I-Language
)	O
aids	O
in	O
producing	O
Java-oriented	O
systems	O
.	O
</s>
<s>
Silicon	O
Laboratories	O
offers	O
an	O
embedded	O
application	B-Application
framework	I-Application
for	O
developing	O
wireless	O
applications	O
on	O
its	O
series	O
of	O
wireless	O
chips	O
.	O
</s>
<s>
MARTHA	O
is	O
a	O
proprietary	B-Application
software	I-Application
Java	B-Language
framework	O
that	O
all	O
of	O
the	O
RealObjects	O
software	O
is	O
built	O
on	O
.	O
</s>
