<s>
OpenUI5	B-Language
is	O
a	O
JavaScript	B-Language
application	B-Application
framework	I-Application
designed	O
to	O
build	O
cross-platform	B-Operating_System
,	O
responsive	B-General_Concept
,	O
enterprise-ready	O
applications	O
.	O
</s>
<s>
It	O
is	O
an	O
open-source	B-Application
project	O
maintained	O
by	O
SAP	B-Application
SE	I-Application
available	O
under	O
the	O
Apache	B-Application
2.0	I-Application
license	I-Application
and	O
open	O
to	O
contributions	O
.	O
</s>
<s>
OpenUI5	B-Language
's	O
core	O
is	O
based	O
on	O
JavaScript	B-Language
,	O
jQuery	B-Language
,	O
and	O
LESS	B-Language
.	O
</s>
<s>
The	O
library	O
's	O
feature	O
set	O
includes	O
model	O
–	O
view	O
–	O
controller	O
patterns	O
,	O
data	B-General_Concept
binding	I-General_Concept
,	O
its	O
own	O
UI-element	B-Application
library	O
,	O
and	O
internationalisation	O
support	O
.	O
</s>
<s>
The	O
team	O
that	O
started	O
the	O
project	O
in	O
2009	O
,	O
that	O
eventually	O
lead	O
to	O
OpenUI5	B-Language
was	O
tasked	O
with	O
creating	O
a	O
new	O
user	B-Application
interface	I-Application
(	O
UI	O
)	O
for	O
SAP	B-Application
applications	O
.	O
</s>
<s>
Objectives	O
included	O
a	O
framework	O
that	O
was	O
flexible	O
,	O
extensible	O
,	O
modern	O
,	O
and	O
would	O
provide	O
a	O
consistent	O
look	O
and	O
feel	O
across	O
SAP	B-Application
applications	O
.	O
</s>
<s>
In	O
addition	O
to	O
this	O
,	O
at	O
the	O
time	O
SAP	B-Application
's	O
main	O
UI	O
framework	O
was	O
tightly	O
coupled	O
to	O
its	O
backend	O
technology	O
,	O
becoming	O
a	O
bottleneck	O
to	O
UI	O
improvements	O
.	O
</s>
<s>
The	O
library	O
was	O
open	O
sourced	O
in	O
December	O
2013	O
,	O
after	O
being	O
used	O
in	O
production	O
at	O
SAP	B-Application
for	O
several	O
years	O
.	O
</s>
<s>
In	O
October	O
2014	O
,	O
the	O
team	O
started	O
accepting	O
contributions	O
via	O
GitHub	B-Application
.	O
</s>
<s>
All	O
OpenUI5	B-Language
components	O
are	O
completely	O
free	O
,	O
and	O
there	O
are	O
no	O
paid	O
"	O
premium	O
"	O
or	O
"	O
commercial	O
"	O
widgets	O
:	O
</s>
<s>
180	O
UI	O
controls	O
,	O
grouped	O
in	O
cross-device	O
(	O
running	O
on	O
phones	O
,	O
tablets	O
and	O
desktops	O
)	O
—	O
menu	O
,	O
carousel	O
,	O
panel	O
,	O
toolbar	O
,	O
icon	O
tab	O
bar	O
,	O
layout	O
,	O
responsive	B-General_Concept
grid	O
,	O
splitter	O
,	O
list	O
,	O
table	O
,	O
dialog	O
,	O
message	O
box	O
,	O
message	O
toast	O
,	O
responsive	B-General_Concept
popover	O
,	O
calendar	O
,	O
combo	O
box	O
,	O
date	O
range	O
selection	O
,	O
file	O
uploader	O
,	O
rating	O
indicator	O
,	O
segmented	O
button	O
,	O
slider	O
,	O
tags	O
display	O
,	O
color	O
picker	O
,	O
tree	O
,	O
table	O
,	O
tree	O
table	O
,	O
etc	O
.	O
</s>
