<s>
ATL	O
(	O
ATLAS	B-Language
Transformation	I-Language
Language	I-Language
)	O
is	O
a	O
model	B-Language
transformation	I-Language
language	I-Language
and	O
toolkit	O
developed	O
and	O
maintained	O
by	O
OBEO	O
and	O
AtlanMod	O
.	O
</s>
<s>
In	O
the	O
field	O
of	O
Model-Driven	B-Language
Engineering	I-Language
(	O
MDE	O
)	O
,	O
ATL	O
provides	O
ways	O
to	O
produce	O
a	O
set	O
of	O
target	O
models	O
from	O
a	O
set	O
of	O
source	O
models	O
.	O
</s>
<s>
Released	O
under	O
the	O
terms	O
of	O
the	O
Eclipse	B-License
Public	I-License
License	I-License
,	O
ATL	O
is	O
an	O
M2M	B-Application
(	O
Eclipse	B-Application
)	O
component	O
,	O
inside	O
of	O
the	O
Eclipse	B-Application
Modeling	O
Project	O
(	O
EMP	O
)	O
.	O
</s>
<s>
ATL	O
is	O
a	O
model	B-Language
transformation	I-Language
language	I-Language
(	O
MTL	O
)	O
developed	O
by	O
OBEO	O
and	O
INRIA	O
to	O
answer	O
the	O
QVT	B-Language
Request	O
For	O
Proposal	O
.	O
</s>
<s>
QVT	B-Language
is	O
an	O
Object	B-Architecture
Management	I-Architecture
Group	I-Architecture
standard	O
for	O
performing	O
model	B-Language
transformations	I-Language
.	O
</s>
<s>
It	O
can	O
be	O
used	O
to	O
do	O
syntactic	O
or	O
semantic	B-Application
translation	I-Application
.	O
</s>
<s>
ATL	O
is	O
built	O
on	O
top	O
of	O
a	O
model	B-Language
transformation	I-Language
Virtual	B-Architecture
Machine	I-Architecture
.	O
</s>
<s>
ATL	O
is	O
the	O
ATLAS	O
INRIA	O
&	O
LINA	O
research	O
group	O
answer	O
to	O
the	O
OMG	O
MOF/QVT	O
RFP	O
.	O
</s>
<s>
It	O
is	O
a	O
model	B-Language
transformation	I-Language
language	I-Language
specified	O
both	O
as	O
a	O
metamodel	O
and	O
as	O
a	O
textual	O
concrete	O
syntax	O
.	O
</s>
<s>
A	O
model-transformation-oriented	O
virtual	B-Architecture
machine	I-Architecture
has	O
been	O
defined	O
and	O
implemented	O
to	O
provide	O
execution	O
support	O
for	O
ATL	O
while	O
maintaining	O
a	O
certain	O
level	O
of	O
flexibility	O
.	O
</s>
<s>
As	O
a	O
matter	O
of	O
fact	O
,	O
ATL	O
becomes	O
executable	O
simply	O
because	O
a	O
specific	O
transformation	O
from	O
its	O
metamodel	O
to	O
the	O
virtual	B-Architecture
machine	I-Architecture
bytecode	O
exists	O
.	O
</s>
<s>
An	O
ATL	O
program	O
(	O
T1.atl	O
here	O
)	O
will	O
take	O
model	O
Ma.xmi	O
as	O
input	O
and	O
will	O
produce	O
model	O
Mb.xmi	O
as	O
output	O
.	O
</s>
<s>
Both	O
models	O
may	O
be	O
expressed	O
in	O
the	O
OMG	O
XMI	B-Language
standard	O
.	O
</s>
<s>
The	O
model	O
Ma	O
conforms	O
to	O
metamodel	O
MMa.km3	O
.	O
</s>
<s>
Model	O
Mb	O
conforms	O
to	O
metamodel	O
MMb.km3	O
.	O
</s>
<s>
The	O
KM3	B-Language
notation	O
is	O
a	O
simple	O
and	O
neutral	O
metamodel	O
specification	O
language	O
.	O
</s>
<s>
from	O
the	O
ATL	O
Eclipse	B-Application
Modeling	O
Project	O
(	O
EMP	O
)	O
that	O
implements	O
the	O
ATL	O
transformation	O
language	O
which	O
is	O
inspired	O
by	O
the	O
MOF	B-Application
Query/View/Transformation	O
language	O
QVT	B-Language
.	O
</s>
<s>
MOF	B-Application
QVT	B-Language
is	O
a	O
Domain	B-Language
Specific	I-Language
Language	I-Language
for	O
Model	B-Language
Transformation	I-Language
.	O
</s>
<s>
It	O
supports	O
models	O
conforming	O
to	O
Ecore	O
,	O
EMOF	B-Application
,	O
KM3	B-Language
(	O
a	O
specific	O
Domain	B-Language
Specific	I-Language
Language	I-Language
for	O
metamodel	O
specification	O
)	O
,	O
etc	O
.	O
</s>
<s>
ATL	O
is	O
also	O
running	O
on	O
MDR/NetBeans	O
.	O
</s>
