<s>
Project	B-Application
management	I-Application
software	I-Application
(	O
PMS	O
)	O
has	O
the	O
capacity	O
to	O
help	O
plan	O
,	O
organize	O
,	O
and	O
manage	O
resource	O
tools	O
and	O
develop	O
resource	O
estimates	O
.	O
</s>
<s>
Depending	O
on	O
the	O
sophistication	O
of	O
the	O
software	O
,	O
it	O
can	O
manage	O
estimation	O
and	O
planning	O
,	O
scheduling	O
,	O
cost	O
control	O
and	O
budget	O
management	O
,	O
resource	B-Algorithm
allocation	I-Algorithm
,	O
collaboration	B-Application
software	I-Application
,	O
communication	O
,	O
decision-making	B-Application
,	O
quality	O
management	O
,	O
time	B-Application
management	I-Application
and	O
documentation	O
or	O
administration	O
systems	O
.	O
</s>
<s>
Numerous	O
PC	O
and	O
browser-based	B-Application
project	B-Application
management	I-Application
software	I-Application
and	O
contract	B-Application
management	I-Application
software	I-Application
products	O
and	O
services	O
are	O
available	O
.	O
</s>
<s>
The	O
first	O
historically	O
relevant	O
year	O
for	O
the	O
development	O
of	O
project	B-Application
management	I-Application
software	I-Application
is	O
1896	O
,	O
marked	O
by	O
the	O
introduction	O
of	O
the	O
Harmonogram	O
.	O
</s>
<s>
Polish	O
economist	O
Karol	O
Adamiecki	O
attempted	O
to	O
display	O
task	O
development	O
in	O
a	O
floating	O
chart	O
,	O
and	O
laid	O
the	O
foundation	O
for	O
project	B-Application
management	I-Application
software	I-Application
as	O
it	O
is	O
today	O
.	O
</s>
<s>
1912	O
was	O
the	O
year	O
when	O
Henry	O
Gantt	O
replaced	O
the	O
Harmonogram	O
with	O
the	O
more	O
advanced	O
Gantt	B-Application
chart	I-Application
,	O
a	O
scheduling	O
diagram	O
that	O
broke	O
ship	O
design	O
tasks	O
down	O
for	O
the	O
purposes	O
of	O
Hoover	O
Dam	O
in	O
early	O
1931	O
.	O
</s>
<s>
Today	O
's	O
Gantt	B-Application
charts	I-Application
are	O
almost	O
the	O
same	O
as	O
their	O
original	O
counterparts	O
and	O
are	O
a	O
part	O
of	O
many	O
project	B-Application
management	I-Application
systems	I-Application
.	O
</s>
<s>
As	O
with	O
Gantt	B-Application
charts	I-Application
and	O
CPM	O
,	O
PERT	O
was	O
invented	O
for	O
military	O
purposes	O
,	O
this	O
time	O
for	O
the	O
US	O
Navy	O
Polaris	O
missile	O
submarine	O
program	O
.	O
</s>
<s>
With	O
business	O
shifting	O
towards	O
technology-based	O
and	O
paperless	O
methods	O
,	O
the	O
first	O
project	B-Application
management	I-Application
systems	I-Application
started	O
to	O
emerge	O
.	O
</s>
<s>
Oracle	B-Application
and	O
Artemis	B-Application
launched	O
their	O
project	O
managers	O
in	O
1977	O
,	O
while	O
Scitor	O
Corporation	O
did	O
the	O
same	O
in	O
1979	O
.	O
</s>
<s>
The	O
SaaS	B-Architecture
(	O
software-as-a-service	B-Architecture
)	O
trend	O
began	O
in	O
2008	O
,	O
qualified	O
by	O
users	O
as	O
the	O
most	O
flexible	O
type	O
of	O
project	B-Application
management	I-Application
software	I-Application
for	O
their	O
teams	O
.	O
</s>
<s>
With	O
the	O
advent	O
of	O
the	O
Internet-of-Things	B-Operating_System
,	O
project	B-Application
management	I-Application
software	I-Application
was	O
developed	O
to	O
incorporate	O
testing	O
technologies	O
,	O
development	O
tools	O
,	O
and	O
improved	O
cybersecurity	O
methods	O
.	O
</s>
<s>
One	O
of	O
the	O
most	O
common	O
project	B-Application
management	I-Application
software	I-Application
tool	O
types	O
is	O
scheduling	O
tools	O
.	O
</s>
<s>
Project	B-Application
management	I-Application
software	I-Application
has	O
been	O
implemented	O
as	O
a	O
program	O
that	O
runs	O
on	O
the	O
desktop	O
of	O
each	O
user	O
.	O
</s>
<s>
Project	B-Application
management	I-Application
tools	I-Application
that	O
are	O
implemented	O
as	O
desktop	O
software	O
are	O
typically	O
single-user	O
applications	O
used	O
by	O
the	O
project	O
manager	O
or	O
another	O
subject	O
matter	O
expert	O
,	O
such	O
as	O
a	O
scheduler	O
or	O
risk	O
manager	O
.	O
</s>
<s>
Project	B-Application
management	I-Application
software	I-Application
has	O
been	O
implemented	O
as	O
a	O
web	B-Application
application	I-Application
to	O
be	O
accessed	O
using	O
a	O
web	B-Application
browser	I-Application
.	O
</s>
<s>
This	O
may	O
also	O
include	O
the	O
ability	O
to	O
use	O
a	O
smartphone	B-Application
or	O
tablet	B-Device
to	O
gain	O
access	O
to	O
the	O
application	O
.	O
</s>
<s>
Software	B-Architecture
as	I-Architecture
a	I-Architecture
service	I-Architecture
(	O
SaaS	B-Architecture
)	O
is	O
also	O
web-based	B-Application
and	O
has	O
become	O
a	O
common	O
delivery	O
model	O
for	O
many	O
business	O
applications	O
,	O
including	O
project	O
management	O
,	O
project	B-Application
management	I-Application
information	I-Application
system	I-Application
(	O
PMIS	B-Application
)	O
and	O
project	O
portfolio	O
management	O
(	O
PPM	O
)	O
.	O
</s>
<s>
SaaS	B-Architecture
is	O
typically	O
accessed	O
by	O
users	O
using	O
a	O
thin	O
client	O
via	O
a	O
web	B-Application
browser	I-Application
.	O
</s>
<s>
In	O
recent	O
years	O
project	B-Application
management	I-Application
software	I-Application
has	O
moved	O
to	O
Mobile	B-Application
devices	I-Application
.	O
</s>
<s>
In	O
2015	O
there	O
are	O
more	O
cell	O
phones	O
than	O
computers	O
in	O
the	O
world	O
,	O
therefore	O
the	O
move	O
of	O
SaaS	B-Architecture
applications	O
to	O
the	O
mobile	B-Application
devices	I-Application
makes	O
perfect	O
sense	O
.	O
</s>
<s>
Project	B-Application
management	I-Application
software	I-Application
is	O
often	O
published	O
as	O
open	B-Application
source	I-Application
,	O
comprising	O
approximately	O
half	O
of	O
the	O
applications	O
listed	O
in	O
the	O
article	O
Comparison	B-Application
of	I-Application
project	I-Application
management	I-Application
software	I-Application
.	O
</s>
<s>
A	O
personal	O
project	B-Application
management	I-Application
application	I-Application
is	O
one	O
used	O
at	O
home	O
,	O
typically	O
to	O
manage	O
lifestyle	O
or	O
home	O
projects	O
.	O
</s>
<s>
There	O
is	O
considerable	O
overlap	O
with	O
single	O
user	O
systems	O
,	O
although	O
personal	O
project	B-Application
management	I-Application
software	I-Application
typically	O
involves	O
simpler	O
interfaces	O
.	O
</s>
<s>
Web-based	B-Application
tools	O
,	O
including	O
extranets	B-Architecture
,	O
generally	O
fall	O
into	O
this	O
category	O
,	O
but	O
have	O
the	O
limitation	O
that	O
they	O
can	O
only	O
be	O
used	O
when	O
the	O
user	O
has	O
live	O
Internet	O
access	O
.	O
</s>
<s>
To	O
address	O
this	O
limitation	O
,	O
some	O
software	O
tools	O
using	O
client	B-Operating_System
–	I-Operating_System
server	I-Operating_System
architecture	I-Operating_System
provide	O
a	O
rich	B-Protocol
client	I-Protocol
that	O
runs	O
on	O
users	O
 '	O
desktop	B-Device
computer	I-Device
and	O
replicates	O
project	O
and	O
task	O
information	O
to	O
other	O
project	O
team	O
members	O
through	O
a	O
central	O
server	O
when	O
users	O
connect	O
periodically	O
to	O
the	O
network	O
.	O
</s>
<s>
To	O
tackle	O
this	O
,	O
some	O
project	B-Application
management	I-Application
software	I-Application
utilize	O
information	B-Application
visualization	I-Application
,	O
so	O
that	O
users	O
can	O
more	O
easily	O
find	O
,	O
analyze	O
and	O
make	O
changes	O
to	O
their	O
data	O
.	O
</s>
