<s>
MontageJS	B-Language
(	O
or	O
Montage	O
)	O
is	O
an	O
open-source	B-Application
JavaScript	B-Application
framework	I-Application
for	O
building	O
scalable	O
single-page	B-Application
applications	I-Application
.	O
</s>
<s>
It	O
aims	O
to	O
simplify	O
the	O
development	O
and	O
maintainability	O
of	O
expressive	O
HTML5	B-Application
applications	O
by	O
employing	O
native	O
application	O
frameworks	O
.	O
</s>
<s>
With	O
Montage	O
,	O
developers	O
can	O
build	O
and	O
extend	O
reusable	O
user	O
interface	O
components	O
and	O
modules	O
,	O
bind	O
properties	O
among	O
components	O
and	O
controllers	O
,	O
and	O
synchronize	O
DOM	B-General_Concept
updates	O
to	O
ensure	O
a	O
smooth	O
user	O
experience	O
,	O
especially	O
on	O
resource-constrained	O
devices	O
.	O
</s>
<s>
The	O
project	O
was	O
open-sourced	O
on	O
GitHub	B-Application
in	O
July	O
2012	O
under	O
a	O
BSD	B-Operating_System
license	I-Operating_System
.	O
</s>
<s>
The	O
ideas	O
behind	O
Montage	O
date	O
back	O
to	O
Marchant	O
's	O
tenure	O
at	O
Apple	O
(	O
1999−2010	O
)	O
where	O
he	O
worked	O
on	O
native	O
(	O
desktop-like	O
)	O
user	O
interfaces	O
written	O
in	O
JavaScript	B-Language
.	O
</s>
<s>
Marchant	O
's	O
goal	O
at	O
the	O
time	O
was	O
to	O
create	O
the	O
equivalent	O
of	O
proven	O
technologies	O
such	O
as	O
Cocoa	B-Operating_System
and	O
WebObjects	B-Language
,	O
but	O
for	O
the	O
web	O
and	O
on	O
the	O
client	O
side	O
to	O
facilitate	O
building	O
applications	O
in	O
HTML	B-Language
,	O
CSS	B-Language
,	O
and	O
JavaScript	B-Language
.	O
</s>
<s>
The	O
result	O
was	O
Gianduia	O
,	O
a	O
rich	O
Internet	O
application	O
framework	O
introduced	O
by	O
Apple	O
at	O
its	O
2009	O
World	O
of	O
WebObjects	B-Language
Developer	O
Conference	O
.	O
</s>
<s>
Instead	O
,	O
it	O
uses	O
a	O
Cocoa-like	O
API	O
to	O
create	O
a	O
clean	O
layer	O
of	O
abstraction	O
on	O
top	O
of	O
the	O
web	O
stack	O
using	O
modular	O
,	O
self-contained	O
components	O
,	O
real	O
objects	O
and	O
collections	O
,	O
and	O
an	O
API	O
that	O
allows	O
you	O
to	O
observe	O
changes	O
on	O
these	O
objects	O
and	O
their	O
properties	O
or	O
collections	O
.	O
</s>
<s>
Montage	O
builds	O
on	O
ECMAScript	B-Language
5	O
,	O
HTML5	B-Application
,	O
and	O
the	O
CommonJS	B-Language
module	O
system	O
popularized	O
by	O
Node.js	B-Language
.	O
</s>
<s>
It	O
provides	O
the	O
functionality	O
to	O
build	O
graphical	O
user	O
interfaces	O
providing	O
access	O
to	O
both	O
a	O
set	O
of	O
opinionated	O
UI	O
components	O
as	O
well	O
as	O
standard	O
DOM	B-General_Concept
interface	O
components	O
.	O
</s>
<s>
The	O
template	O
contains	O
a	O
DOM	B-General_Concept
skeleton	O
and	O
may	O
require	O
some	O
CSS	B-Language
,	O
but	O
it	O
comes	O
to	O
life	O
with	O
the	O
inclusion	O
of	O
a	O
component	O
object	O
model	O
,	O
distinct	O
but	O
connected	O
to	O
the	B-General_Concept
DOM	I-General_Concept
.	O
</s>
<s>
Part	O
of	O
the	O
MontageJS	B-Language
ecosystem	O
are	O
tools	O
that	O
provide	O
a	O
better	O
developer-optimized	O
experience	O
.	O
</s>
<s>
Mop	O
outputs	O
production-ready	O
Montage	O
applications	O
by	O
reducing	O
the	O
overall	O
file	O
size	O
of	O
the	O
application	O
and	O
creating	O
bundles	O
that	O
can	O
be	O
preloaded	O
or	O
distributed	O
among	O
multiple	O
downloads	O
,	O
to	O
reduce	O
the	O
number	O
of	O
requests	O
and	O
allow	O
developers	O
to	O
release	O
Montage	O
applications	O
with	O
restrictive	O
Content	B-Protocol
Security	I-Protocol
Policies	I-Protocol
.	O
</s>
