<s>
SignPlot	B-Application
is	O
a	O
software	B-Application
application	I-Application
for	O
the	O
design	O
of	O
UK	O
traffic	O
signs	O
and	O
their	O
supports	O
and	O
foundations	O
,	O
developed	O
and	O
sold	O
by	O
Buchanan	O
Computing	O
.	O
</s>
<s>
Initially	O
created	O
in	O
the	O
early	O
1980s	O
as	O
a	O
university	O
project	O
by	O
Simon	O
Morgan	O
,	O
SignPlot	B-Application
3	O
has	O
undergone	O
several	O
updates	O
.	O
</s>
