<s>
In	O
computer	B-Application
software	I-Application
,	O
horizontal	B-Application
market	I-Application
software	I-Application
is	O
a	O
type	O
of	O
application	B-Application
software	I-Application
that	O
is	O
useful	O
in	O
a	O
wide	O
range	O
of	O
industries	O
.	O
</s>
<s>
This	O
is	O
the	O
opposite	O
of	O
vertical	B-Application
market	I-Application
software	I-Application
,	O
which	O
has	O
a	O
scope	O
of	O
usefulness	O
limited	O
to	O
few	O
industries	O
.	O
</s>
<s>
Horizontal	B-Application
market	I-Application
software	I-Application
is	O
also	O
known	O
as	O
"	O
productivity	O
software.	O
"	O
</s>
<s>
Examples	O
of	O
horizontal	B-Application
market	I-Application
software	I-Application
include	O
word	O
processors	O
,	O
web	O
browsers	O
,	O
spreadsheets	O
,	O
calendars	O
,	O
project	O
management	O
applications	O
,	O
and	O
generic	O
bookkeeping	O
applications	O
.	O
</s>
<s>
Since	O
horizontal	B-Application
market	I-Application
software	I-Application
is	O
developed	O
to	O
be	O
used	O
by	O
a	O
broad	O
audience	O
,	O
it	O
generally	O
lacks	O
any	O
market-specific	O
customizations	O
.	O
</s>
