<s>
A	O
metadirectory	B-General_Concept
system	O
provides	O
for	O
the	O
flow	O
of	O
data	O
between	O
one	O
or	O
more	O
directory	O
services	O
and	O
databases	O
,	O
in	O
order	O
to	O
maintain	O
synchronization	O
of	O
that	O
data	O
,	O
and	O
is	O
an	O
important	O
part	O
of	O
identity	O
management	O
systems	O
.	O
</s>
<s>
Most	O
metadirectory	B-General_Concept
deployments	O
synchronize	O
data	O
into	O
at	O
least	O
one	O
LDAP-based	O
directory	O
server	O
,	O
to	O
ensure	O
that	O
LDAP-based	O
applications	O
such	O
as	O
single	O
sign-on	O
and	O
portal	O
servers	O
have	O
access	O
to	O
recent	O
data	O
,	O
even	O
if	O
the	O
data	O
is	O
mastered	O
in	O
a	O
non-LDAP	O
data	O
source	O
.	O
</s>
<s>
Metadirectory	B-General_Concept
products	O
support	O
filtering	O
and	O
transformation	O
of	O
data	O
in	O
transit	O
.	O
</s>
<s>
Most	O
identity	O
management	O
suites	O
from	O
commercial	O
vendors	O
include	O
a	O
metadirectory	B-General_Concept
product	O
,	O
or	O
a	O
user	O
provisioning	O
product	O
.	O
</s>
