<s>
MacProject	B-Operating_System
was	O
a	O
project	O
management	O
and	O
scheduling	O
business	O
application	B-Application
released	O
along	O
with	O
the	O
first	O
Apple	B-Device
Macintosh	I-Device
systems	O
in	O
1984	O
.	O
</s>
<s>
MacProject	B-Operating_System
was	O
one	O
of	O
the	O
first	O
major	O
business	O
tools	O
for	O
the	O
Macintosh	B-Device
which	O
enabled	O
users	O
to	O
calculate	O
the	O
"	O
critical	O
path	O
"	O
to	O
completion	O
and	O
estimate	O
costs	O
in	O
money	O
and	O
time	O
.	O
</s>
<s>
If	O
a	O
project	O
deadline	O
was	O
missed	O
or	O
if	O
available	O
resources	O
changed	O
,	O
MacProject	B-Operating_System
recalculated	O
everything	O
automatically	O
.	O
</s>
<s>
MacProject	B-Operating_System
was	O
written	O
by	O
Debra	O
Willrett	O
at	O
Solosoft	O
,	O
and	O
was	O
published	O
and	O
distributed	O
by	O
Apple	O
Computer	O
to	O
promote	O
the	O
original	O
Macintosh	B-Device
personal	O
computer	O
.	O
</s>
<s>
It	O
was	O
developed	O
from	O
an	O
earlier	O
application	B-Application
written	O
by	O
Debra	O
Willrett	O
for	O
Apple	O
's	O
Lisa	O
computer	O
,	O
LisaProject	B-Operating_System
.	O
</s>
<s>
This	O
was	O
the	O
first	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
for	O
project	O
management	O
.	O
</s>
<s>
There	O
were	O
many	O
other	O
project	B-Application
management	I-Application
applications	I-Application
on	O
the	O
market	O
at	O
the	O
time	O
,	O
but	O
LisaProject	B-Operating_System
was	O
the	O
first	O
to	O
simplify	O
the	O
process	O
by	O
allowing	O
the	O
user	O
to	O
interactively	O
draw	O
their	O
project	O
on	O
the	O
computer	O
in	O
the	O
form	O
of	O
a	O
PERT	O
chart	O
.	O
</s>
<s>
One	O
of	O
the	O
early	O
proponents	O
of	O
MacProject	B-Operating_System
was	O
James	O
Halcomb	O
,	O
a	O
well	O
known	O
expert	O
in	O
the	O
use	O
of	O
the	O
Critical	O
Path	O
Method	O
.	O
</s>
<s>
Having	O
supervised	O
hand-drawn	O
network	O
diagrams	O
for	O
countless	O
complex	O
projects	O
,	O
Halcomb	O
immediately	O
recognized	O
the	O
promise	O
of	O
the	O
WYSIWYG	B-Application
graphical	B-Application
interface	I-Application
and	O
computerized	O
calculation	O
of	O
the	O
critical	O
path	O
.	O
</s>
<s>
In	O
consultation	O
with	O
the	O
software	O
's	O
developers	O
he	O
authored	O
the	O
book	O
Planning	O
Big	O
with	O
MacProject	B-Operating_System
,	O
which	O
introduced	O
a	O
generation	O
of	O
Mac	B-Device
users	O
to	O
PERT	O
and	O
CPM	O
.	O
</s>
<s>
In	O
December	O
1987	O
,	O
an	O
updated	O
version	O
of	O
MacProject	B-Operating_System
,	O
called	O
MacProject	B-Operating_System
II	O
,	O
was	O
introduced	O
as	O
a	O
part	O
of	O
Claris	O
's	O
move	O
to	O
update	O
its	O
suite	O
of	O
Mac	B-Device
office	O
applications	O
.	O
</s>
<s>
In	O
1991	O
,	O
Microsoft	B-Operating_System
Project	I-Operating_System
was	O
ported	O
to	O
the	O
Macintosh	B-Device
from	O
Microsoft	B-Application
Windows	I-Application
and	O
became	O
MacProject	B-Operating_System
's	O
main	O
competitor	O
.	O
</s>
<s>
However	O
,	O
after	O
the	O
release	O
of	O
version	O
3.0	O
of	O
Microsoft	B-Operating_System
Project	I-Operating_System
in	O
1993	O
,	O
Microsoft	O
terminated	O
support	O
of	O
the	O
Macintosh	B-Device
release	O
.	O
</s>
<s>
MacProject	B-Operating_System
1.0	O
is	O
not	O
Y2K-compliant	B-Error_Name
as	O
it	O
cannot	O
schedule	O
tasks	O
past	O
1999	O
.	O
</s>
