<s>
Web	B-General_Concept
data	I-General_Concept
integration	I-General_Concept
(	O
WDI	O
)	O
is	O
the	O
process	O
of	O
aggregating	O
and	O
managing	O
data	O
from	O
different	O
websites	O
into	O
a	O
single	O
,	O
homogeneous	O
workflow	O
.	O
</s>
<s>
WDI	O
is	O
an	O
extension	O
and	O
specialization	O
of	O
data	B-General_Concept
integration	I-General_Concept
that	O
views	O
the	O
web	O
as	O
a	O
collection	O
of	O
heterogeneous	O
databases	O
.	O
</s>
<s>
Data	B-General_Concept
integration	I-General_Concept
techniques	O
in	O
the	O
context	O
of	O
the	O
web	O
,	O
forms	O
the	O
foundation	O
for	O
businesses	O
taking	O
advantage	O
of	O
data	O
available	O
on	O
the	O
ever-increasing	O
number	O
of	O
publicly-accessible	O
websites	O
.	O
</s>
