<s>
Segment	B-Architecture
architecture	I-Architecture
is	O
a	O
detailed	O
,	O
formal	O
description	O
of	O
areas	O
within	O
an	O
enterprise	O
,	O
used	O
at	O
the	O
program	O
or	O
portfolio	O
level	O
to	O
organize	O
and	O
align	O
change	O
activity	O
.	O
</s>
<s>
Segment	B-Architecture
architecture	I-Architecture
is	O
driven	O
by	O
business	O
management	O
and	O
delivers	O
products	O
that	O
improve	O
the	O
delivery	O
of	O
services	O
to	O
citizens	O
and	O
agency	O
staff	O
.	O
</s>
<s>
From	O
an	O
investment	O
perspective	O
,	O
segment	B-Architecture
architecture	I-Architecture
drives	O
decisions	O
for	O
a	O
business	O
case	O
or	O
group	O
of	O
business	O
cases	O
supporting	O
a	O
core	O
mission	O
area	O
or	O
common	O
or	O
shared	O
service	O
.	O
</s>
<s>
The	O
primary	O
stakeholders	O
for	O
segment	B-Architecture
architecture	I-Architecture
are	O
business	O
owners	O
and	O
managers	O
.	O
</s>
<s>
Segment	B-Architecture
architecture	I-Architecture
is	O
related	O
to	O
Enterprise	O
architecture	O
(	O
EA	O
)	O
through	O
three	O
principles	O
:	O
</s>
<s>
Structure	O
:	O
segment	B-Architecture
architecture	I-Architecture
inherits	O
the	O
framework	O
used	O
by	O
the	O
EA	O
,	O
although	O
it	O
may	O
be	O
extended	O
and	O
specialized	O
to	O
meet	O
the	O
specific	O
needs	O
of	O
a	O
core	O
mission	O
area	O
or	O
common	O
or	O
shared	O
service	O
.	O
</s>
<s>
Reuse	O
:	O
segment	B-Architecture
architecture	I-Architecture
reuses	O
important	O
assets	O
defined	O
at	O
the	O
enterprise	O
level	O
including	O
:	O
data	O
;	O
common	O
business	O
processes	O
and	O
investments	O
;	O
and	O
applications	O
and	O
technologies	O
.	O
</s>
<s>
Alignment	O
:	O
segment	B-Architecture
architecture	I-Architecture
aligns	O
with	O
elements	O
defined	O
at	O
the	O
enterprise	O
level	O
,	O
such	O
as	O
business	O
strategies	O
,	O
mandates	O
,	O
standards	O
,	O
and	O
performance	O
measures	O
.	O
</s>
