<s>
EAST-ADL	B-Architecture
is	O
an	O
Architecture	B-Architecture
Description	I-Architecture
Language	I-Architecture
(	O
ADL	O
)	O
for	O
automotive	O
embedded	O
systems	O
,	O
developed	O
in	O
several	O
European	O
research	O
projects	O
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
complement	O
AUTOSAR	B-Application
with	O
descriptions	O
at	O
higher	O
level	O
of	O
abstractions	O
.	O
</s>
<s>
Aspects	O
covered	O
by	O
EAST-ADL	B-Architecture
include	O
vehicle	O
features	O
,	O
functions	O
,	O
requirements	O
,	O
variability	O
,	O
software	O
components	O
,	O
hardware	O
components	O
and	O
communication	O
.	O
</s>
<s>
Currently	O
,	O
it	O
is	O
maintained	O
by	O
the	O
EAST-ADL	B-Architecture
Association	O
in	O
cooperation	O
with	O
the	O
European	O
FP7	O
MAENAD	O
project	O
.	O
</s>
<s>
EAST-ADL	B-Architecture
is	O
a	O
domain-specific	O
language	O
using	O
meta-modeling	O
constructs	O
such	O
as	O
classes	O
,	O
attributes	O
,	O
and	O
relationships	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
concepts	O
from	O
UML	B-Language
,	O
SysML	B-Language
and	O
AADL	B-Architecture
,	O
but	O
adapted	O
for	O
automotive	O
needs	O
and	O
compliance	O
with	O
AUTOSAR	B-Application
.	O
</s>
<s>
There	O
is	O
an	O
EAST-ADL	B-Architecture
UML2	O
profile	O
which	O
is	O
used	O
in	O
UML2	O
tools	O
for	O
user	O
modeling.The	O
EAST-ADL	B-Architecture
definition	O
also	O
serves	O
as	O
the	O
specification	O
for	O
implementation	O
in	O
domain-specific	O
tools	O
.	O
</s>
<s>
EAST-ADL	B-Architecture
contains	O
several	O
abstraction	O
levels	O
.	O
</s>
<s>
EAST-ADL	B-Architecture
is	O
defined	O
with	O
the	O
development	O
of	O
safety-related	O
embedded	O
control	O
systems	O
as	O
a	O
benchmark	O
.	O
</s>
<s>
The	O
EAST-ADL	B-Architecture
scope	O
comprises	O
support	O
for	O
the	O
main	O
phases	O
of	O
software	O
development	O
,	O
from	O
early	O
analysis	O
via	O
functional	O
design	O
to	O
the	O
implementation	O
and	O
back	O
to	O
integration	O
and	O
validation	O
on	O
vehicle	O
level	O
.	O
</s>
<s>
The	O
main	O
role	O
of	O
EAST-ADL	B-Architecture
is	O
that	O
of	O
providing	O
an	O
integrated	O
system	O
model	O
.	O
</s>
<s>
Behavioural	O
models	O
for	O
simulation	O
or	O
code	O
generation	O
are	O
supported	O
as	O
references	O
from	O
EAST-ADL	B-Architecture
functions	O
to	O
external	O
models	O
,	O
such	O
as	O
a	O
subsystem	O
in	O
MATLAB/Simulink	B-Application
.	O
</s>
<s>
The	O
EAST-ADL	B-Architecture
meta-model	O
is	O
organized	O
according	O
to	O
4	O
abstraction	O
levels	O
:	O
</s>
<s>
Implementation	O
level	O
relies	O
on	O
AUTOSAR	B-Application
elements	O
and	O
does	O
not	O
have	O
EAST-ADL-specific	O
constructs	O
for	O
the	O
core	O
structure	O
.	O
</s>
<s>
implementation	O
level	O
,	O
EAST-ADL	B-Architecture
uses	O
unmodified	O
AUTOSAR	B-Application
entities	O
for	O
this	O
purpose	O
and	O
provides	O
means	O
to	O
link	O
EAST-ADL	B-Architecture
elements	O
on	O
higher	O
abstraction	O
levels	O
to	O
AUTOSAR	B-Application
elements	O
.	O
</s>
<s>
Thus	O
,	O
EAST-ADL	B-Architecture
and	O
AUTOSAR	B-Application
in	O
concert	O
provide	O
means	O
for	O
efficient	O
development	O
and	O
management	O
of	O
the	O
complexity	O
of	O
automotive	O
embedded	O
systems	O
from	O
early	O
analysis	O
right	O
down	O
to	O
implementation	O
.	O
</s>
<s>
Concepts	O
from	O
model-based	O
development	O
and	O
component-based	O
development	O
reinforce	O
one	O
another.An	O
early	O
,	O
high-level	O
representation	O
of	O
the	O
system	O
can	O
evolve	O
seamlessly	O
into	O
the	O
detailed	O
specifications	O
of	O
the	O
AUTOSAR	B-Application
language	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
EAST-ADL	B-Architecture
incorporates	O
the	O
following	O
system	O
development	O
concerns	O
:	O
</s>
<s>
The	O
EAST-ADL	B-Architecture
metamodel	O
is	O
specified	O
according	O
to	O
the	O
same	O
rules	O
as	O
the	O
AUTOSAR	B-Application
metamodel	O
,	O
which	O
means	O
that	O
the	O
two	O
sets	O
of	O
elements	O
can	O
co-exist	O
in	O
the	O
same	O
model	O
.	O
</s>
<s>
The	O
dependency	O
is	O
unidirectional	O
from	O
EAST-ADL	B-Architecture
to	O
AUTOSAR	B-Application
,	O
such	O
that	O
AUTOSAR	B-Application
is	O
independent	O
of	O
EAST-ADL	B-Architecture
.	O
</s>
<s>
However	O
,	O
relevant	O
EAST-ADL	B-Architecture
elements	O
can	O
reference	O
AUTOSAR	B-Application
elements	O
to	O
provide	O
EAST-ADL	B-Architecture
support	O
for	O
requirements	O
,	O
variability	O
,	O
safety	O
,	O
etc	O
.	O
</s>
<s>
to	O
the	O
AUTOSAR	B-Application
domain	O
.	O
</s>
<s>
A	O
model	O
may	O
thus	O
be	O
defined	O
where	O
AUTOSAR	B-Application
elements	O
represent	O
the	O
software	O
architecture	O
and	O
EAST-ADL	B-Architecture
elements	O
extend	O
the	O
AUTOSAR	B-Application
model	O
with	O
orthogonal	O
aspects	O
and	O
represents	O
abstract	O
system	O
information	O
through	O
e.g.	O
</s>
<s>
Such	O
model	O
can	O
be	O
defined	O
in	O
UML	B-Language
,	O
by	O
applying	O
both	O
an	O
EAST-ADL	B-Architecture
profile	O
and	O
an	O
AUTOSAR	B-Application
profile	O
,	O
or	O
in	O
a	O
domain	O
specific	O
tool	O
based	O
on	O
a	O
merged	O
AUTOSAR	B-Application
and	O
EAST-ADL	B-Architecture
metamodel	O
.	O
</s>
<s>
The	O
EAST-ADL	B-Architecture
language	O
has	O
been	O
defined	O
in	O
several	O
steps	O
within	O
European	O
research	O
projects	O
:	O
</s>
<s>
Project	O
name	O
Time	O
Budget	O
EAST-ADL	B-Architecture
Version	O
Specification	O
Download	O
Support	O
by	O
research	O
departments	O
of	O
following	O
vehicle	O
manufacturers(OEMs )	O
EAST-EEA	O
1.7.2001	O
-	O
30.6.2004	O
40	O
M€	O
EAST-ADL	B-Architecture
Version	O
1.0	O
No	O
download	O
available	O
after	O
project	O
had	O
finished	O
BMW	O
,	O
Daimler	O
,	O
Fiat	O
,	O
PSA	O
(	O
Peugeot/Citroen	O
)	O
,	O
Renault	O
,	O
Volvo	O
,	O
Valeo	O
ATESST	O
ATESST	O
project	O
:	O
6th	O
FWP	O
project	O
reference	O
026976	O
1.1.2006	O
-	O
31.3	O
.	O
</s>
<s>
2008	O
3.9	O
M€	O
EAST-ADL	B-Architecture
Version	O
2.0	O
https://web.archive.org/web/20110725022136/http://www.atesst.org/home/liblocal/docs/EAST-ADL-2.0-Specification_2008-02-29.pdf	O
Daimler	O
,	O
Volvo	O
Group	O
,	O
VW/Carmeq	O
ATESST2	O
ICT	O
project	O
reference	O
ATESST2	O
project	O
:	O
224442	O
1.7.2008	O
-	O
30.6	O
.	O
</s>
<s>
2010	O
3.8	O
M€	O
EAST-ADL	B-Architecture
Version	O
2.1	O
https://web.archive.org/web/20110725022320/http://www.atesst.org/home/liblocal/docs/ATESST2_D4.1.1_EAST-ADL2-Specification_2010-06-02.pdf	O
Fiat	O
,	O
Volvo	O
Group	O
,	O
Volvo	O
Cars	O
,	O
VW/Carmeq	O
MAENAD	O
MAENAD	O
project	O
:	O
ICT	O
project	O
reference	O
260057	O
1.9.2010	O
-	O
31.8	O
.	O
</s>
<s>
EAST-ADL	B-Architecture
is	O
governed	O
by	O
the	O
EAST-ADL	B-Architecture
Association	O
,	O
founded	O
in	O
September	O
2011	O
.	O
</s>
<s>
The	O
EAST-ADL	B-Architecture
UML2	O
profile	O
is	O
represented	O
in	O
the	O
EAST-ADL	B-Architecture
annex	O
to	O
the	O
OMG	O
MARTE	B-Language
profile	O
.	O
</s>
<s>
While	O
interest	O
from	O
automotive	O
companies	O
in	O
EAST-ADL	B-Architecture
is	O
increasing	O
over	O
the	O
past	O
years	O
,	O
EAST-ADL	B-Architecture
is	O
still	O
to	O
be	O
seen	O
as	O
a	O
research	O
effort	O
(	O
as	O
of	O
2012	O
)	O
.	O
</s>
<s>
The	O
practical	O
acceptance	O
of	O
EAST-ADL	B-Architecture
in	O
the	O
automotive	O
industry	O
is	O
still	O
very	O
low	O
,	O
even	O
though	O
EAST-ADL	B-Architecture
addresses	O
many	O
important	O
aspects	O
of	O
vehicle	O
development	O
.	O
</s>
<s>
EAST-ADL	B-Architecture
is	O
used	O
as	O
a	O
reference	O
model	O
in	O
other	O
research	O
projects	O
,	O
e.g.	O
</s>
<s>
EAST-ADL	B-Architecture
tool	O
support	O
is	O
still	O
limited	O
,	O
although	O
a	O
UML	B-Language
profile	O
is	O
available	O
and	O
domain	O
specific	O
tools	O
such	O
as	O
MentorGraphics	O
VSA	O
,	O
MetaCase	O
MetaEdit+	O
and	O
Systemite	O
SystemWeaver	O
have	O
been	O
tailored	O
for	O
EAST-ADL	B-Architecture
in	O
the	O
context	O
of	O
research	O
projects	O
and	O
with	O
customers	O
.	O
</s>
<s>
Papyrus	B-Language
UML	I-Language
,	O
extended	O
within	O
the	O
ATESST	O
project	O
as	O
a	O
concept	O
demonstrator	O
has	O
EAST-ADL	B-Architecture
support	O
,	O
and	O
MagicDraw	B-Protocol
,	O
can	O
also	O
provide	O
EAST-ADL	B-Architecture
palettes	O
,	O
diagrams	O
,	O
etc	O
.	O
</s>
<s>
In	O
the	O
case	O
of	O
UML	B-Language
,	O
developers	O
also	O
need	O
to	O
have	O
knowledge	O
of	O
UML	B-Language
(	O
classes	O
,	O
stereotypes	O
,	O
arrow	O
types	O
,	O
..	O
)	O
for	O
modeling	O
with	O
EAST-ADL	B-Architecture
.	O
</s>
<s>
EATOP	O
is	O
an	O
upcoming	O
initiative	O
to	O
make	O
an	O
Eclipse-based	O
implementation	O
of	O
the	O
EAST-ADL	B-Architecture
meta-model	O
.	O
</s>
<s>
An	O
XML-based	O
exchange	O
format	O
,	O
EAXML	O
,	O
allows	O
tools	O
to	O
exchange	O
EAST-ADL	B-Architecture
models	O
.	O
</s>
<s>
The	O
EAXML	O
schema	O
is	O
autogenerated	O
from	O
the	O
EAST-ADL	B-Architecture
metamodel	O
according	O
to	O
the	O
same	O
principles	O
as	O
the	O
AUTOSAR	B-Application
ARXML	O
schema	O
.	O
</s>
<s>
Currently	O
,	O
the	O
exchange	O
format	O
is	O
supported	O
by	O
the	O
EAST-ADL	B-Architecture
prototype	O
of	O
Mentor	O
Graphics	O
VSA	O
,	O
MetaEdit+	O
and	O
SystemWeaver	O
.	O
</s>
<s>
For	O
UML	B-Language
tooling	O
,	O
it	O
is	O
possible	O
to	O
exchange	O
models	O
using	O
XMI	O
,	O
subject	O
to	O
the	O
XMI	O
compatibility	O
between	O
tools	O
.	O
</s>
