<s>
The	O
Ada	B-Language
Conformity	O
Assessment	O
Test	O
Suite	O
(	O
ACATS	O
)	O
is	O
the	O
test	O
suite	O
used	O
for	O
Ada	B-Language
processor	O
conformity	O
testing	O
.	O
</s>
<s>
A	O
prior	O
test	O
suite	O
was	O
known	O
as	O
the	O
Ada	B-Language
Compiler	I-Language
Validation	I-Language
Capability	I-Language
(	O
ACVC	O
)	O
.	O
</s>
<s>
The	O
Ada	B-Language
Compiler	I-Language
Validation	I-Language
Capability	I-Language
test	O
suite	O
,	O
commonly	O
referred	O
to	O
as	O
the	O
ACVC	O
tests	O
,	O
was	O
the	O
original	O
test	O
suite	O
developed	O
for	O
the	O
Ada	B-Language
language	I-Language
.	O
</s>
<s>
The	O
ACVC	O
system	O
was	O
organized	O
under	O
the	O
aegis	O
of	O
the	O
Ada	B-Language
Joint	O
Program	O
Office	O
.	O
</s>
<s>
The	O
test	O
suites	O
were	O
modeled	O
on	O
a	O
VAX/VMS	B-Operating_System
system	O
,	O
which	O
was	O
the	O
dominant	O
host	O
platform	O
for	O
such	O
defense-related	O
applications	O
at	O
the	O
time	O
.	O
</s>
<s>
The	O
individual	O
test	O
files	O
were	O
based	O
on	O
the	O
section	O
of	O
the	O
Ada	B-Language
reference	O
manual	O
they	O
pointed	O
to	O
,	O
for	O
instance	O
C45210A.ADA	O
.	O
</s>
<s>
The	O
year	O
1985	O
saw	O
the	O
issuing	O
of	O
the	O
first	O
Ada	B-Language
validation	O
certificates	O
.	O
</s>
<s>
At	O
the	O
height	O
of	O
the	O
language	O
's	O
use	O
,	O
which	O
corresponded	O
to	O
the	O
years	O
1985	O
through	O
1993	O
,	O
there	O
were	O
five	O
Ada	B-Language
Validation	O
Facilities	O
around	O
the	O
world	O
that	O
could	O
process	O
vendor	O
ACVC	O
submissions	O
:	O
the	O
Language	O
Control	O
Facility	O
at	O
Wright	O
Patterson	O
Air	O
Force	O
Base	O
(	O
United	O
States	O
)	O
,	O
the	O
National	O
Bureau	O
of	O
Standards	O
(	O
United	O
States	O
,	O
soon	O
renamed	O
to	O
the	O
National	O
Institute	O
of	O
Standards	O
)	O
,	O
the	O
National	O
Computing	O
Centre	O
(	O
United	O
Kingdom	O
)	O
,	O
AFNOR	O
(	O
France	O
)	O
,	O
and	O
IABG	O
(	O
Germany	O
)	O
.	O
</s>
<s>
However	O
once	O
Ada	B-Language
use	O
for	O
defense	O
or	O
similar	O
applications	O
began	O
falling	O
,	O
the	O
number	O
of	O
validation	O
contracts	O
fell	O
as	O
well	O
,	O
and	O
several	O
of	O
these	O
facilities	O
became	O
inoperative	O
or	O
transferred	O
their	O
responsibilities	O
.	O
</s>
<s>
The	O
Ada	B-Language
Compiler	I-Language
Validation	I-Language
Capability	I-Language
came	O
to	O
an	O
end	O
with	O
the	O
closure	O
of	O
the	O
Ada	B-Language
Joint	O
Program	O
Office	O
in	O
1998	O
.	O
</s>
<s>
Ada	B-Language
compiler	O
vendors	O
still	O
wanted	O
a	O
validation	O
mechanism	O
,	O
however	O
,	O
so	O
a	O
new	O
validation	O
system	O
was	O
devised	O
to	O
replace	O
it	O
,	O
the	O
Ada	B-Language
Conformity	O
Assessment	O
Test	O
Suite	O
.	O
</s>
<s>
Conformity	O
assessment	O
does	O
not	O
ensure	O
that	O
a	O
processor	O
has	O
no	O
nonconformities	O
to	O
the	O
Ada	B-Language
standard	O
other	O
than	O
those	O
,	O
if	O
any	O
,	O
documented	O
in	O
this	O
report	O
.	O
</s>
<s>
The	O
compiler	O
vendor	O
declares	O
that	O
the	O
tested	O
processor	O
contains	O
no	O
deliberate	O
deviation	O
from	O
the	O
Ada	B-Language
standard	O
;	O
a	O
copy	O
of	O
this	O
Declaration	O
of	O
Conformity	O
is	O
presented	O
immediately	O
after	O
the	O
certificate	O
.	O
</s>
<s>
The	O
purpose	O
of	O
conformity	O
assessment	O
is	O
to	O
ensure	O
that	O
Ada	B-Language
processors	O
achieve	O
a	O
high	O
degree	O
of	O
conformity	O
with	O
the	O
Ada	B-Language
standard	O
(	O
Ada95	B-Language
as	O
corrected	O
by	O
 [ TC1 ] 	O
)	O
.	O
</s>
<s>
Characteristics	O
such	O
as	O
performance	O
and	O
suitability	O
for	O
a	O
particular	O
application	O
are	O
not	O
specified	O
by	O
the	O
standard	O
,	O
and	O
thus	O
are	O
outside	O
the	O
scope	O
of	O
Ada	B-Language
conformity	O
assessment	O
.	O
</s>
<s>
The	O
test	O
suite	O
is	O
publicly	O
available	O
,	O
for	O
example	O
as	O
a	O
part	O
of	O
the	O
source	O
distribution	O
of	O
the	O
GNU	B-Application
Compiler	I-Application
Collection	I-Application
,	O
which	O
also	O
contains	O
the	O
Ada	B-Language
compiler	O
GNAT	B-Language
.	O
</s>
