<s>
Voter	B-Application
Intention	I-Application
Collection	I-Application
System	I-Application
also	O
known	O
by	O
its	O
acronym	O
VICS	O
is	O
a	O
bespoke	O
canvassing	O
software	O
system	O
with	O
a	O
voter	B-Application
database	I-Application
originally	O
created	O
for	O
the	O
Vote	O
Leave	O
campaign	O
for	O
the	O
2016	O
United	O
Kingdom	O
European	O
Union	O
membership	O
referendum	O
.	O
</s>
<s>
An	O
open-source	B-License
version	O
is	O
available	O
.	O
</s>
<s>
The	O
acronym	O
VICS	O
as	O
well	O
as	O
standing	O
for	O
Voter	B-Application
Intention	I-Application
Collection	I-Application
System	I-Application
was	O
also	O
the	O
nickname	O
of	O
Victoria	O
Woodcock	O
,	O
operations	O
director	O
of	O
Vote	O
Leave	O
who	O
project	O
managed	O
the	O
creation	O
of	O
the	O
system	O
.	O
</s>
<s>
The	O
location	O
of	O
a	O
GitHub	B-Application
open	B-License
source	I-License
repository	O
under	O
an	O
MIT	B-License
license	I-License
that	O
could	O
build	O
the	O
VICS	O
system	O
was	O
made	O
known	O
by	O
Cummings	O
in	O
a	O
blog	O
post	O
in	O
October	O
2016	O
.	O
</s>
<s>
Waterhouse	O
described	O
the	O
way	O
VICS	O
worked	O
for	O
the	O
ground	O
campaign	O
can	O
be	O
summarised	O
as	O
follows	O
:	O
VICS	O
would	O
be	O
loaded	O
with	O
a	O
"	O
model	O
"	O
,	O
a	O
predictive	B-General_Concept
algorithm	I-General_Concept
used	O
to	O
predict	O
the	O
percentage	O
of	O
Eurosceptic	O
voters	O
at	O
the	O
level	O
of	O
individual	O
streets	O
when	O
combined	O
with	O
statistics	O
from	O
the	O
2014	O
general	O
and	O
European	O
elections	O
.	O
</s>
<s>
The	O
user	B-Application
interface	I-Application
for	O
the	O
client	B-Protocol
was	O
developed	O
as	O
a	O
Single-page	B-Application
application	I-Application
using	O
AngularJS	B-Application
.	O
</s>
<s>
The	O
application	B-Application
tier	B-Operating_System
was	O
developed	O
with	O
Java	B-Language
using	O
a	O
Spring	B-Application
framework	I-Application
To	O
achieve	O
the	O
installation	O
from	O
the	O
source	O
on	O
a	O
server	O
several	O
components	O
must	O
be	O
pre-installed	O
including	O
PostgreSQL	B-Application
,	O
redis	B-Operating_System
and	O
Apache	B-Language
Maven	I-Language
.	O
</s>
<s>
Data	O
is	O
transferred	O
between	O
the	O
user	B-Application
interface	I-Application
and	O
application	B-Application
tier	B-Operating_System
using	O
REST	O
over	O
the	O
HTTP	B-Protocol
protocol	I-Protocol
serialized	B-Application
as	O
JSON	B-General_Concept
.	O
</s>
<s>
There	O
are	O
claims	O
the	O
intelligence	O
VICS	O
enabled	O
the	O
Vote	O
Leave	O
campaign	O
to	O
cost-effectively	O
deliver	O
over	O
one	O
billion	O
targeted	O
advertisements	O
over	O
social	O
media	O
with	O
most	O
via	O
Facebook	B-Application
.	I-Application
</s>
<s>
Others	O
claims	O
VICS	O
was	O
not	O
as	O
capable	O
or	O
effective	O
as	O
it	O
was	O
claimed	O
to	O
be	O
,	O
with	O
some	O
of	O
Cummings	O
 '	O
claimed	O
functionality	O
already	O
available	O
on	O
Facebook	B-Application
.	I-Application
</s>
