<s>
Data	B-General_Concept
verification	I-General_Concept
is	O
a	O
process	O
in	O
which	O
different	O
types	O
of	O
data	O
are	O
checked	O
for	O
accuracy	O
and	O
inconsistencies	B-General_Concept
after	O
data	B-General_Concept
migration	I-General_Concept
is	O
done	O
.	O
</s>
<s>
In	O
some	O
domains	O
,	O
it	O
is	O
referred	O
to	O
Source	O
Data	B-General_Concept
Verification	I-General_Concept
(	O
SDV	O
)	O
,	O
such	O
as	O
in	O
clinical	O
trials	O
.	O
</s>
<s>
Data	B-General_Concept
verification	I-General_Concept
helps	O
to	O
determine	O
whether	O
data	O
was	O
accurately	O
translated	O
when	O
data	O
is	O
transferred	O
from	O
one	O
source	O
to	O
another	O
,	O
is	O
complete	O
,	O
and	O
supports	O
processes	O
in	O
the	O
new	O
system	O
.	O
</s>
<s>
During	O
verification	O
,	O
there	O
may	O
be	O
a	O
need	O
for	O
a	O
parallel	O
run	O
of	O
both	O
systems	O
to	O
identify	O
areas	O
of	O
disparity	O
and	O
forestall	O
erroneous	O
data	B-General_Concept
loss	I-General_Concept
.	O
</s>
<s>
Methods	O
for	O
data	B-General_Concept
verification	I-General_Concept
include	O
double	B-Device
data	I-Device
entry	I-Device
,	O
proofreading	O
and	O
automated	O
verification	O
of	O
data	O
.	O
</s>
<s>
Automated	O
verification	O
of	O
data	O
can	O
be	O
achieved	O
using	O
one	O
way	O
hashes	O
locally	O
or	O
through	O
use	O
of	O
a	O
SaaS	B-Architecture
based	O
service	O
such	O
as	O
Q	O
by	O
SoLVBL	O
to	O
provide	O
immutable	O
seals	O
to	O
allow	O
verification	O
of	O
the	O
original	O
data	O
.	O
</s>
