<s>
Accredited	B-Language
Symbian	I-Language
Developer	I-Language
(	O
ASD	O
)	O
was	O
a	O
(	O
now	O
defunct	O
)	O
accreditation	O
program	O
for	O
software	B-Application
developers	I-Application
using	O
Symbian	B-Operating_System
OS	I-Operating_System
,	O
a	O
mobile	O
phone	O
operating	O
system	O
,	O
having	O
been	O
terminated	O
in	O
April	O
2011	O
after	O
the	O
closure	O
of	O
the	O
Symbian	B-Application
Foundation	I-Application
.	O
</s>
<s>
The	O
primary	O
qualification	O
for	O
being	O
accredited	O
as	O
an	O
ASD	O
was	O
a	O
pass	O
in	O
an	O
on-line	O
multiple	O
choice	O
examination	O
that	O
adhered	O
to	O
the	O
Principles	O
of	O
Symbian	B-Operating_System
OS	I-Operating_System
curriculum	O
.	O
</s>
<s>
This	O
curriculum	O
was	O
reviewed	O
on	O
an	O
annual	O
basis	O
to	O
ensure	O
that	O
the	O
accreditation	O
kept	O
up	O
to	O
date	O
with	O
developments	O
in	O
the	O
Symbian	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
.	O
</s>
<s>
The	O
final	O
release	O
of	O
the	O
curriculum	O
was	O
made	O
in	O
2009	O
although	O
it	O
still	O
adhered	O
closely	O
to	O
the	O
ASD	O
Primer	O
,	O
a	O
learning	O
aid	O
published	O
by	O
Wiley	O
under	O
the	O
Symbian	B-Operating_System
Press	O
imprint	O
.	O
</s>
