<s>
Qt	B-Language
Quick	I-Language
is	O
a	O
free	B-Application
software	I-Application
application	B-Application
framework	I-Application
developed	O
and	O
maintained	O
by	O
the	O
Qt	B-Language
Project	I-Language
within	O
the	O
Qt	B-Language
framework	I-Language
.	O
</s>
<s>
It	O
provides	O
a	O
way	O
of	O
building	O
custom	O
,	O
highly	O
dynamic	O
graphical	B-Application
user	I-Application
interfaces	I-Application
with	O
fluid	O
transitions	O
and	O
effects	O
,	O
which	O
are	O
becoming	O
more	O
common	O
especially	O
in	O
mobile	B-Application
devices	I-Application
.	O
</s>
<s>
Qt	B-Language
Quick	I-Language
includes	O
a	O
declarative	B-Language
scripting	B-Language
language	I-Language
called	O
QML	B-Language
.	O
</s>
<s>
Qt	B-Language
Declarative	B-Language
is	O
a	O
runtime	O
interpreter	O
that	O
reads	O
the	O
Qt	B-Language
declarative	B-Language
user	O
interface	O
definition	O
,	O
QML	B-Language
data	O
,	O
and	O
displays	O
the	O
UI	O
that	O
it	O
describes	O
.	O
</s>
<s>
The	O
QML	B-Language
syntax	O
allows	O
using	O
JavaScript	B-Language
to	O
provide	O
the	O
logic	O
,	O
and	O
it	O
is	O
often	O
used	O
for	O
this	O
purpose	O
.	O
</s>
<s>
Qt	B-Language
Quick	I-Language
and	O
QML	B-Language
are	O
officially	O
supported	O
in	O
Qt	B-Language
4.7	O
(	O
with	O
Qt	B-Language
Creator	I-Language
2.1	O
)	O
,	O
and	O
it	O
is	O
a	O
commercial	O
option	O
in	O
mobile	O
applications	O
when	O
Qt	B-Language
4.7	O
is	O
available	O
for	O
deployment	O
in	O
Symbian	B-Operating_System
and	O
Maemo	B-Operating_System
and	O
MeeGo	B-Operating_System
devices	O
.	O
</s>
<s>
It	O
was	O
also	O
the	O
native	O
language	O
of	O
Ubuntu	B-Protocol
Touch	I-Protocol
.	O
</s>
