Indonesi
an
Journa
l
of El
ect
ri
cal Engineer
ing
an
d
Comp
ut
er
Scie
nce
Vo
l.
13
,
No.
1
,
Jan
uar
y
201
9
,
pp.
85
~
93
IS
S
N: 25
02
-
4752, DO
I: 10
.11
591/ijeecs
.v1
3
.i
1
.pp
85
-
93
85
Journ
al h
om
e
page
:
http:
//
ia
es
core.c
om/j
ourn
als/i
ndex.
ph
p/ij
eecs
S
imp
lification of
app
lication op
erations usi
ng cloud
and
DevOps
An
sh
u Prem
c
ha
n
d, M.
S
andhy
a,
Sh
armil
a
S
ankar
B.
S.
Abdur Ra
h
m
an
Cresc
ent In
stit
ute of
Sc
ie
n
c
e
and
T
ec
hnolog
y
,
GS
T
Road, Va
n
dal
ur, C
henn
ai
6
00
048,
Ta
m
il
n
a
du.
Indi
a
Art
ic
le
In
f
o
ABSTR
A
CT
Art
ic
le
history:
Re
cei
ved
A
ug
23
, 201
8
Re
vised Oct
27
, 2
018
Accepte
d Nov
10
, 201
8
In
our
exp
eri
en
ce
of
havi
ng
worked
with
financi
a
l
insti
tut
ions
for
over
1
9
ca
l
enda
r
y
e
ars,
we
have
see
n
th
at
application
de
vel
opm
ent
,
m
ai
n
te
nan
ce
and
oper
ations
te
ams
have
a
ver
y
si
lo
-
ed
exi
st
enc
e
.
In
today
'
s
eve
r
m
ore
flui
d
m
ark
et
,
i
t
is
impera
t
ive
for
th
ese
te
ams
to
be
ver
y
ag
il
e
in
the
i
r
response
to
business
nee
ds.
W
hil
e
d
evelop
m
ent
team
s
are
tr
y
ing
to
adop
t
ag
il
e
and
devops
pra
ctice
s
,
oper
a
ti
ons
and
m
ai
nte
nan
ce
t
eam
s
are
som
et
im
es
forgott
e
n
in
thi
s
tr
ansfor
m
at
ion
journey
eve
n
though
they
p
lay
a
ver
y
cr
uci
a
l
rol
e
in
m
ana
ging
custo
m
er
fac
ing
s
y
st
ems
.
In
thi
s
p
ap
er,
we
foc
us
on
appl
i
catio
n
oper
a
t
ions
for
the
ir
sim
pli
fication,
outl
in
e
the
post
produc
ti
on
cha
llenge
s
fac
ed
b
y
the
op
era
t
ions
team
s,
assistanc
e
req
ui
red
from
th
e
de
vel
opm
en
t
te
ams
and
n
eed
for
coor
d
ination
an
d
har
m
on
y
b
et
we
en
appl
i
ca
t
ion
deve
lopment
an
d
oper
at
ions
team
s.
W
e
use
t
he
exa
m
ple
of
a
fina
ncial
orga
nizati
on
where
we
are
cur
r
e
ntly
he
lpi
ng
in
s
implifi
c
at
ion
o
f
appl
i
ca
t
ion
support
proc
esses
using
two
k
e
y
le
ver
s
of
cl
o
ud
and
devops
adopt
ion
t
o
highl
ight
th
e
pa
t
h
to
sim
pli
f
ic
a
tion.
W
e
ou
tl
in
e
t
he
solut
ion
l
evers
we
used,
soluti
on
te
ne
ts,
soluti
on
appr
oa
ch
and
conside
rat
i
ons.
W
e
al
so
sh
are
a
ta
rg
et
stat
e
m
odel
and
reg
ula
t
ed
ke
y
f
unct
ions
and
a
ctivit
i
es
withi
n
th
e
m
odel
as
well
as
an
interi
m
oper
at
ing
m
odel
and a
t
arg
e
t opera
t
ing
m
odel.
Ke
yw
or
ds:
Ag
il
it
y
Applic
at
ion su
pport
Cl
oud
a
doptio
n
DevO
ps
Si
m
plific
at
ion
Copyright
©
201
9
Instit
ut
e
o
f Ad
vanc
ed
Engi
n
ee
r
ing
and
S
cienc
e
.
Al
l
rights re
serv
ed.
Corres
pond
in
g
Aut
h
or
:
An
s
hu
P
rem
chan
d
B. S.
A
bdur Ra
hm
an
Crescent
Insti
tute o
f
Sci
ence
a
nd
Tec
hnol
og
y
GST R
oad,
Vanda
lur
,
Che
nn
ai
600 0
48, T
am
il
nad
u, I
ndia
.
Em
a
il
:
ansh
upr
e
m
@g
m
ail.co
m
1.
INTROD
U
CTION
So
ft
war
e
ser
vi
ce
pro
vid
e
rs
a
nd
enter
pri
se
dev
el
op
m
ent
te
a
m
s
are
incre
asi
ng
ly
un
der
pr
ess
ure
to
create
,
e
nh
a
nc
e
an
d
deliver
app
li
cat
io
ns
at
an
e
ver
-
fa
ste
r
pace.
A
gile
s
of
t
war
e
de
velo
pm
ent
pr
act
ic
es
an
d
devO
ps
hel
p
r
edu
ce
release
cy
cl
e
tim
es
bu
t
costly
and
tim
e
con
su
m
ing
on
-
pro
duct
ion
app
li
cat
ion
er
rors
or
m
ist
akes
sti
l
l
ai
l
dev
el
opers
,
syst
e
m
s
ad
m
i
nistrato
rs
an
d
IT
sup
port
te
am
s
irresp
ect
iv
e
of
de
vOp
s
te
a
m
s
hav
i
ng
been
e
sta
blish
ed
on
the
a
ppli
cat
ion
de
velo
pm
ent
side.
A
pp
li
cat
ion
pr
ob
le
m
s
com
m
on
ly
arise
from
change
of stat
us q
uo that
resu
l
ts i
n
dis
har
m
ony wit
h u
ps
tre
a
m
an
d/or
dow
ns
tream
syst
e
m
s.
The
ra
pid
change
s
cause
d
by
agil
e
dev
el
op
m
ent
therefor
e
nece
ssit
at
e
so
lvin
g
app
li
cat
io
n
suppo
rt
pro
blem
s
ver
y
quic
kly.
Also,
the
co
ncep
t
of
br
i
ng
y
our
ow
n
de
vice
to
off
ic
e
requires
a
gi
li
t
y
to
handle
app
li
cat
io
n
sup
port
syst
em
s
[
1].
The
existi
ng inter
-
de
vice colla
bora
ti
on
syst
em
is g
ene
rall
y ce
ntr
al
iz
ed
syst
em
[
2].
On
e
of
pri
m
ar
y
go
al
s
of
de
vOps
is
t
o
get
de
velo
per
s
m
ore
involve
d
in
a
pp
li
cat
io
n
m
ain
te
na
nce
a
nd
op
e
rati
ons
so
t
hey
can
m
or
e
eff
ect
ively
res
olv
e
ap
plica
ti
on
issues
in
pr
oductio
n
en
vir
onm
ents
[3
]
.
Th
e
oth
e
r
i
m
po
rtant
goal
is t
o
bri
ng
de
ve
lop
m
ent an
d t
est
ing
e
nviro
nm
ents as close
to
each
o
t
her a
s possible.
T
his h
el
ps
because
norm
al
ly
,
there
are
m
any
pr
od
uction
iss
ues
that
cannot
be
re
plica
te
d
in
de
velop
m
ent
env
ir
onm
ents
because
they
are
s
o
dis
par
a
te
.
But
if
the
env
i
ronm
ents
are
sam
e
or
si
m
il
ar,
the
num
ber
of
‘
ne
w’
issues
occurri
ng
in
pro
duct
ion
e
nviro
nm
ents
can
be
broug
ht
do
wn
m
easur
a
bl
y.
Also,
if
de
velo
per
s
do
not
ha
ve
acce
ss
to
li
ve
pro
du
ct
io
n
a
ppli
cat
ion
s
an
d
s
erv
e
rs,
tr
ouble
sh
ooti
ng
issue
s
can
bec
om
e
ver
y
ti
m
e
con
su
m
ing
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci,
Vo
l.
13
, N
o.
1
,
Ja
nu
a
ry 20
19
:
85
–
93
86
This
le
ads
to
a
back
lo
g
of
syst
e
m
def
ect
s,
unha
ppy
custo
m
ers,
and
business
an
d
ove
r
wh
el
m
ed
dev
e
lop
m
ent
and
op
e
rati
ons
te
a
m
s
[4
]
.
W
i
th
increase
d
ad
op
ti
on
of
bi
g
da
ta
,
In
te
r
net
of
Things
an
d
se
ns
or
te
ch
no
l
ogy
by
var
i
ou
s
orga
ni
zat
ion
f
or
pro
visio
ning
sm
a
rt
intel
li
gen
t
s
erv
ic
es
for
va
rio
us
ap
plica
ti
on
us
es
,
the
s
yst
e
m
b
ecom
es
com
plex
[
5].
I
n
ce
rt
ai
n
in
dustrie
s
l
ike
fi
nan
ci
al
in
sti
tuti
on
s,
r
oles
&
re
spo
ns
ibil
it
ie
s
dicta
te
acce
ss
to
env
i
ronm
ents.
These
a
re
esse
ntial
for
ris
k
&
com
pliance,
am
on
gs
t
ot
her
thin
gs
[
6].
W
e
wor
ked
with
a
la
rg
e
fina
ncial
insti
t
ution
f
r
om
the
fo
rt
u
ne
50
0
li
st
and
helpe
d
si
m
plify
their
app
li
cat
io
n
suppo
rt
by
agili
t
y
and
devO
ps
ad
opti
on
a
nd
delive
red
qu
a
ntifie
d
ben
e
fits
betw
een
10
-
25%
of
cost
to
m
anag
e
ap
plica
ti
o
ns
f
or
var
i
ou
s
te
ch
nolog
y
set
s.
The
lowe
r
en
d
of
the
s
pectr
um
sa
w
le
gacy
a
ppli
cat
ion
s
a
nd
C
OTS
(c
omm
on
off
th
e
sh
el
f
)
pr
oduct
set
s
an
d
the
hi
gh
e
r
e
nd
sa
w
app
li
cat
io
ns
w
ritt
en
in
te
c
hnologies
s
uch
a
s
j
a
va,
Net
a
nd
new
e
r
dig
it
al
tech
no
l
og
ie
s
.
In
ou
r
case
w
it
h
finan
ci
al
insti
tuti
on
we
m
entioned,
we
us
ed
the
le
ve
rs
of
a
gili
ty
,
devo
ps
a
nd
cl
oud
[
7]
.
T
he
delivery
m
anag
ers
at
the
fi
nan
ci
al
orga
nizat
ion
s
had
tw
o
pri
m
ary
chall
eng
es
-
on
e
,
f
ind
i
ng
sk
il
le
d
dev
el
opers
to
fill
ope
n
posit
ion
s
to
im
pr
ov
e
outp
ut
from
the
te
am
an
d
tw
o,
im
pr
ov
i
ng
th
rou
ghpu
t
a
nd
pro
du
ct
ivit
y
of
te
a
m
s.
Dev
el
op
e
rs
no
rm
all
y
sp
en
d
a
la
rge
per
ce
ntage
of
their
tim
e
wo
r
king
on
ap
pl
ic
at
ion
def
ect
s
a
nd
s
uppo
rt
pro
blem
s
wh
e
n
their
ti
m
e
wo
ul
d
be
be
tt
er
sp
ent
on
creati
ng
new
s
olu
ti
ons
to
f
urt
her
th
e
cause
of
bu
si
ne
ss.
Usi
ng
de
vOps
a
nd
agile
pr
act
ic
es,
we
he
lped
im
pr
ove
dev
el
op
m
ent
proces
ses,
a
dd
e
d
to
ols
and
create
d
CI
-
CD
pip
el
in
es
(conti
nuous
i
nt
egr
at
io
n
–
c
on
ti
nu
ous
delive
r
y)
f
or
the
fina
ncial
insti
tuti
on
a
nd
recorde
d
a
n
ov
e
rall
pro
du
ct
ivit
y
i
m
pr
ov
em
ent
of
6%
-
15%
w
hile
m
ai
ntaining
existi
ng
hea
dcou
nts.
This
ad
diti
ona
l
capaci
ty
was
util
iz
ed
to
de
li
ver
ne
w
s
ol
utions
to
business.
I
n
this
pap
e
r,
we
s
ha
re
our
exp
e
rience
of
work
i
ng
with
the
fina
ncial
insti
tuti
on
on
i
m
pr
ov
in
g
&
sim
pl
ify
ing
thei
r
ap
plica
ti
on
s
upport
processes
.
W
it
h
this
exam
ple,
we
exp
la
in
how
com
m
on
barriers
to
pro
duc
ti
on
ap
plica
ti
on
suppo
rt
agili
t
y
can
be
ov
e
rc
om
e
i
n
a
ti
m
e
and
cost
ef
fici
ent
m
ann
er
with
a
De
vOps
ap
proac
h
s
uppo
rted
by
agile
pr
a
ct
ic
e
adoptio
n,
w
hile
reducin
g
the
cro
ss
-
f
unct
io
na
l
fr
ic
ti
on
that
com
m
on
ly
aris
es
wh
e
n
de
ploy
ed
app
li
cat
io
ns
st
op
run
ning
or
sho
w defects
[
8].
We
us
e
d
a
tw
o
pro
ng
e
d
ap
proac
h
t
o
s
olv
e
this
pro
blem
–
one,
we
us
e
d
de
vops
pri
nc
iples
a
nd
seco
nd, we
us
e
d
cl
ou
d (privat
e cloud a
nd
public cl
oud).
2.
THE
PROPO
SED P
ROCE
DURE:
SI
MP
LIFYI
NG
AND
I
MP
ROVI
NG APPLI
C
ATIO
N
SU
PP
ORT
IN PR
ODUCTI
ON
We
obser
ve
d
at
the
finan
ci
a
l
insti
tuti
on
that
m
os
t
dev
el
op
m
ent
te
a
m
s
and
in
div
id
ua
l
dev
el
opers
sp
e
nt
ap
pro
xi
m
at
ely
20
to
30
per
ce
nt
of
th
ei
r
tim
e
on
a
ppli
cat
ion
s
upport
a
nd
def
ect
m
anag
em
ent.
I
deall
y,
the
dev
el
op
m
ent
te
am
s
can
be
grante
d
read
-
only
an
d
au
di
te
d
acce
ss
to
inf
ra
str
uctu
re
r
eso
ur
ces
so
th
ey
can
get
the
inf
or
m
at
ion
they
nee
d
with
out
exposin
g
the
orga
nizat
ion
to
un
necessa
ry
risks
includi
ng
(a
nd
not
lim
it
ed
to) fina
ncial
r
isk
s. We
h
el
pe
d si
m
plif
y t
he
ope
rati
ons pro
ce
sses t
o:
a)
Pr
ovi
de
cr
os
s
-
f
un
ct
io
nal
de
vOps visi
bili
ty
b)
Ma
intai
n
sec
uri
ty
, r
isk m
anage
m
ent an
d c
ompli
ance
po
li
ci
e
s
c)
Con
tr
ol access
rig
hts as nee
de
d by r
ole
d)
Fil
te
r,
m
ask
an
d har
ness
sensi
ti
ve
data
e)
Audit de
velo
pe
r
acce
ss
to pr
oductio
n sy
stems
f)
Creat
e d
as
hboa
rd
s
for ap
plica
ti
on
healt
h
m
onit
or
in
g
g)
Gen
e
rati
ng r
e
ports
a
s
need
e
d and kee
ping
ri
gh
t
sta
ke
ho
l
ders in l
oop
In
our
e
xam
ple,
with
sim
plif
ie
d
proc
esses,
dev
el
op
m
ent
and
operati
on
s
te
a
m
s
wer
e
a
bl
e
to
re
port
increase
in
c
ol
la
bo
rati
on
a
nd
we
re
able
t
o
gai
n
sh
a
red
visibil
it
y
to
s
olv
e
producti
on
ap
plica
ti
on
su
pp
or
t
pro
bl
em
s
faste
r
a
nd
re
ported
le
sser
def
ect
s
in
pro
du
ct
io
n
over
a
per
i
od
of
ti
m
e.
W
e
wer
e
able
t
o
r
epor
t
increase
d
pro
duct
ivit
y
an
d
i
m
pr
ov
e
d
c
ollaborat
io
n
th
r
oughout
their
de
velo
pm
ent
and
operati
ons
te
am
s
by
br
ea
king
dow
n
sil
os
an
d
crea
ti
ng
a
unifie
d
view
of
t
he
en
te
rp
rise
.
W
e
w
il
l
exp
la
in
the
m
et
ho
d
a
pp
li
e
d
in
sect
ion
s t
hat fo
ll
ow
. A
fter
firs
t and sec
ond w
ave
of sim
plifi
cat
ion
, we
we
r
e able to:
a)
Re
du
ce
operati
on
s
a
nd sup
por
t ov
e
r
head an
d costs
b)
Re
du
ce
li
censi
ng cost
s
c)
Re
so
lve c
us
t
om
er
-
i
m
pacti
ng
pro
du
ct
io
n
iss
ue
s f
a
ste
r
d)
Im
pr
ov
e
up
-
ti
m
e
e)
Be
nef
it
fro
m
great
er c
ollab
orat
ion
a
nd kn
owle
dge s
har
i
ng
f)
Get b
et
te
r
r
eal
-
tim
e v
isi
bili
t
y ac
ro
s
s
var
io
us
env
i
ronm
ents an
d rati
onal
iz
e the
nu
m
ber
of e
nv
i
ronm
ents
g)
Su
ccess
f
ully
m
anag
e
ris
k,
m
on
it
or
ing
a
nd
au
dit
require
m
ents
throu
gh
ro
le
-
b
ase
d
acce
ss
for
de
vel
op
e
rs
and trac
king
of all
troub
le
s
ho
oting an
d
c
ha
nge act
ivit
ie
s
h)
Easi
er m
igrati
on
of ap
plica
ti
on
s t
o
cl
ou
d
(a
s
need
e
d)
i)
Mi
ti
gate & m
a
nag
e
r
is
ks
a
nd
i
m
pr
ove ef
fecti
ven
e
ss
of outs
ource
d dev
el
opm
ent an
d s
upport
res
ources
j)
Scal
e on
dem
a
nd the
de
velo
pm
ent an
d o
pe
r
at
ion
s team
s by
cro
ss
traini
ng
Evaluation Warning : The document was created with Spire.PDF for Python.
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci
IS
S
N:
25
02
-
4752
Simpli
fi
cation of ap
plicati
on
op
e
ra
ti
ons
us
i
ng clo
ud
and
DevOps
(
A
nsh
u
Pre
mc
hand
)
87
The
“
Scal
ing o
n Dem
and
” wo
rk
e
d
i
n
tw
o wa
ys
:
1.
Dev
el
op
e
rs
we
re
a
ble
to
get
a
das
hboa
r
d
view
of
al
l
of
t
he
ir
ap
plica
ti
ons
an
d
relat
ed
s
erv
e
rs.
T
hey
w
ere
able to t
rack t
he
h
eal
th
of the
entire a
pp
li
cat
ion st
a
ck
. T
hey
cou
l
d,
with
ou
t
assist
ance :
a)
Au
t
om
atical
ly
disco
ver, m
on
it
or
a
nd r
e
sta
rt
app
li
cat
io
ns
b)
Ce
ntrall
y view
apps
from
a dat
a center
(s)
c)
Ma
nag
e
clo
ud
base
d
a
pp
li
cat
ion
s
(
i
f
a
ny)
d)
Track cha
nges
e)
See ap
plica
ti
ons,
ser
vices a
nd
sche
du
le
d
ta
sks
f)
Access l
og and
co
nf
i
gurati
on
file
s
g)
Qu
e
ry
producti
on d
at
a
bases
h)
Mon
it
or a
pp
li
c
at
ion
a
nd serve
r heal
th
i)
Get noti
ficat
io
ns
a
nd alert
s
2.
Op
e
rati
ons tea
m
s w
ere ab
le
t
o
sim
plify t
heir
w
orkl
oad b
y:
a)
Giving
de
velo
pm
ent team
s saf
e a
nd secu
re
acce
ss to p
rod
uction ap
plica
ti
on
s
and
pro
duct
ion
se
rv
e
rs.
b)
Pr
ovi
de
cr
os
s
-
f
un
ct
io
nal
de
vOps visi
bili
ty
c)
Ma
intai
n
sec
uri
ty
, r
isk m
anage
m
ent an
d c
ompli
ance
po
li
ci
e
s
d)
Con
tr
ol access
rig
hts
e)
Audit de
velo
pe
r
acce
ss
to pr
oductio
n sy
stems
We
caref
ully
wen
t
thr
ough
al
l
the
req
uire
m
ents
of
the
f
inancial
org
a
nizat
ion
an
d
ap
pl
ie
d
a
m
ult
i
-
pro
ng
e
d
a
ppr
oa
ch.
We
sp
li
t t
he req
uirem
ents in
t
o
tw
o
se
r
vi
ce bun
dles
a)
Bundle
on
e:
Tr
aditi
on
al
IT
a
nd P
rivate Cl
ou
d
b)
Bundle t
w
o: P
ub
li
c Cl
ou
d
The
key
m
oti
vato
r
was
to
ens
ur
e
a
flawl
ess
dig
it
al
cus
tom
er
j
ourn
ey
and
the
IT
-
i
nfrastr
uctu
re
need
e
d
t
o
s
upport
this.
Mo
de
rn
iz
at
io
n,
st
re
a
m
li
nin
g
an
d
consolidat
io
n
wer
e
t
he
key
them
es
in
struc
tural
change
at
t
he
f
inancial
insti
tu
ti
on
we
wer
e
he
lping.
T
he
fin
ancial
orga
niza
ti
on
need
to
dri
ve
cha
nges
from
a
bu
si
ness
persp
ect
ive
&
f
o
r
I
T
to
be
su
cces
sfu
l,
a
stron
g
c
oope
rati
on
a
nd
colla
borati
on
with
the
busin
ess
was
necessa
ry.
To
achieve
al
l
the
se,
we
pr
opos
e
d
ad
opti
on
of
agile
and
de
vops
pract
ic
es
[9
-
10]
.
Table
1
broa
dly
li
sts our
rec
omm
end
at
ions f
or
the
fina
ncial
org
a
nizat
ion’s
busin
ess
ob
j
ect
ives s
ha
red wit
h us.
Table
1
.
Ma
pp
i
ng of B
us
ines
s
Objecti
ves
to Our Rec
omm
e
nd
at
io
ns
Bu
sin
ess
Objectiv
es
Ou
r
Reco
m
m
e
n
d
at
io
n
s
Sy
ste
m
,
se
rvice an
d
bu
sin
ess
availab
i
lity
need
s (24
/7
)
Hig
h
ly
r
esilien
t
inf
rastructu
re
in
all la
y
ers on
clou
d
inf
rast
ructu
re
Cap
acity
f
lu
ctu
atio
n
m
an
ag
e
m
en
t
Pu
b
lic clou
d
f
o
r
reliability
an
d
scalab
ility
Si
m
p
lif
ied
too
ls &
services to
m
an
ag
e cos
t
Si
m
p
lif
ied
,
o
rchest
rated to
o
l chain
Red
u
ce size
o
f
cod
e bas
e
Co
n
sid
er
clo
u
d
bro
k
erage service
m
o
d
el,
co
g
n
itiv
e auto
m
a
tio
n
f
o
r
o
p
eration
al eff
icie
n
cies
Si
m
p
lif
ied
integ
ration
m
an
ag
e
m
en
t
Te
m
p
late
bas
ed
integ
ration
Sea
m
less
dig
ital c
u
sto
m
e
r
jo
u
rney
su
p
p
o
rted b
y
I
T
f
o
r
i
m
p
rov
ed
cus
to
m
e
r
satis
f
actio
n
Leverage clo
u
d
to
p
rov
id
e div
erse set of
I
aaS and
PaaS
serv
ices
Ado
pting
t
o
th
e
three
key
th
e
m
es
of
struct
ur
al
cha
nges
nam
el
y
Mod
er
ni
zat
ion
,
Strea
m
li
nin
g
an
d
Con
s
olidati
on,
we
co
ns
tr
ucted
the
ta
r
get
sta
te
so
luti
on
t
o
m
eet
the
curr
ent
an
d
f
utu
re
requirem
ents
of
the
fina
ncial
org
a
ni
zat
ion
.
Figure
1
sho
w
s
the
key
s
olu
t
io
n
dr
i
ver
s
for
the
entire
e
xerci
se.
The
key
dr
i
ver
s
wer
e
di
vid
e
d
into
6
cl
asses
wh
ic
h
dro
ve
on
e
or
m
or
e
key
te
ne
ts
of
the
so
luti
on.
These
dr
iv
er
cl
asses
were
cl
ou
d,
auto
m
at
ion
,
dig
it
al
platfo
r
m
s,
go
vernanc
e,
secu
rity
a
nd
c
os
t.
F
or
each
dr
i
ver
cl
ass
there
w
e
re
sub
-
fo
c
us
areas
.
Fo
r
exam
ple,
f
or
dig
it
al
,
the
s
ub
f
ocu
s
areas
include
d
cl
oud
burstin
g,
m
odern
i
nteg
rati
on
serv
ic
es
,
an
d
m
ic
ro
-
serv
ic
e
e
na
ble
m
ent.
For
gove
rn
a
nce,
the
s
ub
-
f
oc
us
a
reas
wer
e
cl
ou
d
se
rv
ic
e
bro
ker
a
ge
,
cl
oud
go
vernan
ce
,
arch
it
ect
ure
bo
ard
a
n
d
com
petence
m
anag
em
ent
fo
r
re
gu
l
at
ion
s
a
nd
s
o
on.
T
hese d
ri
vers
helpe
d
us
ar
rive
that
the
key
te
nets
of
the
entire
propose
d
so
l
ution
for
sim
plific
at
ion
of
app
li
cat
io
n
op
erati
on
s
as
w
e
hav
e
descr
i
bed b
el
ow.
The
k
ey
te
ne
ts of the
pro
pose
d
s
olu
ti
on
wer
e:
a)
Zer
o dist
urbance
knowled
ge
t
ran
sit
io
n
b)
Cl
oud
asses
sm
ent en
a
ble
d
wit
h
a
pp
li
cat
io
n
c
entric asses
sm
ent app
ro
ac
h
c)
Cl
oud
f
oc
us
e
d appr
oach f
or wor
klo
a
d
m
igrati
on
s
d)
Mi
gr
at
ion an
d t
ran
s
form
ation
risks
with
m
i
tig
at
ion
e)
Com
plete
sco
pe
of se
rv
ic
es
on
IT host
ing an
d op
e
rati
ons
f)
Scal
able a
nd Rel
ia
ble target c
loud
platfo
rm
g)
Fo
c
us
e
d
a
uto
m
at
ion
for
sta
ble infrast
r
uctu
re
h)
Ce
ntrali
zed m
on
it
or
i
ng w
it
h e
ven
t c
orrelat
io
n
ac
ro
s
s
platfo
rm
s,
app
li
cat
io
ns
a
nd
netw
ork
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci,
Vo
l.
13
, N
o.
1
,
Ja
nu
a
ry 20
19
:
85
–
93
88
i)
Cl
oud gover
na
nce e
nab
le
d o
pe
rati
ng m
od
el
d
esi
gne
d wit
h si
ng
le
point
of
own
e
rsh
i
p
j)
Qu
al
it
y su
ppor
t
k)
Suppor
t
im
pr
ov
em
ents thr
ou
gh ope
rati
on
al
process
im
pr
ove
m
ents
l)
Run su
pport
fo
r
c
os
t ef
fici
enc
ie
s f
or
both
ho
sti
ng
a
nd
op
e
ra
ti
on
al
servic
es
m)
Ma
nag
e
Ri
sk
s
n)
Allow cu
stom
e
r
c
on
tr
olled
pe
rsonali
zat
ion o
n
al
l ne
w digit
al
ap
plica
ti
ons
o)
An
ideal
team
m
ix w
it
h
al
l rel
evan
t
sk
il
ls a
nd e
nab
le
d wit
h cl
oud gove
rn
a
nce
p)
Op
e
rati
onal
tra
ns
pa
re
ncy th
rough
s
er
vice m
a
nag
em
ent to
ols and
processes
q)
Digital
and a
ut
onom
ou
s
platf
or
m
to
ad
dr
e
ss
current a
nd
fu
t
ur
e
r
e
qu
i
rem
ents
r)
Con
ti
nu
ou
s
servic
e im
pr
ov
em
ents
th
rou
gh a
naly
ti
cs, au
tom
at
ion
a
nd tech
nolo
gy and
proc
ess drive
n
ho
sti
ng and s
uppo
rt enha
nce
m
ents
Figure
1
.
Key
so
luti
on
dr
i
vers
Broa
dly,
as
T
a
ble
2
sho
ws,
we
cl
assifi
e
d
a
ll
the
curre
nt
c
apab
il
it
ie
s
an
d/
or
se
rv
ic
es
av
ai
la
ble
into
these
tw
o
bundle
s
to
cl
ea
rly
sp
eci
fy
wh
ic
h
one
of
th
ese
s
erv
ic
es
c
ould
be
handled
us
i
ng
tradit
io
nal
I
T
an
d
pr
i
vate
cl
oud
and
wh
ic
h
on
es
cou
l
d
be
ta
ken
to
a
public
cl
oud
so
l
ution.
Since
we
we
re
fo
c
usi
ng
on
app
li
cat
io
n
s
upport,
for
t
his si
m
pl
ific
at
ion
exe
rcise, the
foll
ow
i
ng se
r
vices
w
e
re
deem
ed
ou
t
of sc
op
e:
a)
Applic
at
ion De
velo
pm
ent
-
B
uild,
C
onfig
ure
, Test
b)
Applic
at
ion M
ai
ntenance
-
3r
d
Le
vel
Applic
at
ion
S
uppo
rt,
Mi
no
r
enha
nce
m
ents, bu
g
fi
xe
s
c)
Ar
c
hiv
i
ng
d)
Data Ce
nter
Dec
omm
issi
on
Table
2
.
B
undl
e
W
ise
Sp
li
t
of
Acti
viti
es
Cu
rr
en
t Cap
ab
ilities
Tr
ad
itio
n
al I
T
&
P
rivate Clo
u
d
Pu
b
lic Clo
u
d
Cro
ss
Fun
ctio
n
al Ser
v
ices
Yes
Yes
Secu
rity Op
eration
Cen
ter
Yes
Yes
Ap
p
licatio
n
Opera
tio
n
s
Yes
Yes
Integ
ration
Ser
v
ice
Yes
Yes
Databas
e M
an
ag
em
e
n
t
Yes
Yes
Netwo
rk Se
rvices
Yes
No
IaaS
(M
ain
f
ra
m
es,
legacy
)
Yes
No
PaaS (
all t
y
p
es o
f
datab
ases
)
Yes
Yes
IaaS
(all
t
y
p
es o
f
OS)
Yes
Yes
Sto
rage Cap
acity
Yes
No
Server Capaci
ty
Yes
No
Manag
e
m
en
t of
Sa
aS
No
Yes
Evaluation Warning : The document was created with Spire.PDF for Python.
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci
IS
S
N:
25
02
-
4752
Simpli
fi
cation of ap
plicati
on
op
e
ra
ti
ons
us
i
ng clo
ud
and
DevOps
(
A
nsh
u
Pre
mc
hand
)
89
We
al
so
a
naly
zed
the
existi
ng
inf
rastr
uctu
r
e
and
dr
e
w
ob
serv
at
io
ns
a
nd
then
m
app
ed
e
ach
of
thes
e
ob
s
er
vations
to
infe
ren
ce
s
that
helpe
d
de
fine
the
ta
rg
et
op
erati
ng
m
od
el
(TO
M
)
an
d
ta
rg
et
sim
pl
ifie
d
app
li
cat
io
n
suppo
rt/op
e
rati
ons
so
l
ution.
So
m
e
of
the
i
m
po
rtant
ob
se
rv
at
io
n
s
an
d
infe
ren
ce
s
are
li
ste
d
in
T
a
ble 3
.
Table
3
.
O
ur
K
ey
O
bse
r
vations &
Infer
e
nces
Dr
a
wn
Ob
serv
atio
n
s
Inf
erences
The exi
stin
g
inf
rastructu
re
h
ad
m
in
i
m
al or no
f
o
o
t
p
rint o
n
pu
b
lic
clou
d
Co
n
sid
er
m
o
v
in
g
po
ss
ib
le no
n
-
sen
siti
v
e workl
o
ad
s to
public clo
u
d
,
wh
ich
wou
ld
enab
le hig
h
er
scalab
ility
and
f
lex
ib
i
lity
in th
e tar
g
et
in
f
rastructu
re
2
0
% o
f
the syste
m
s were
in p
h
y
sical
f
o
r
m
Po
ss
ib
ility
o
f
m
ig
r
atin
g
this
20%
in
f
r
astru
ctu
re
to
virtu
a
l f
o
r
m
which
wo
u
ld
giv
e 10
0
%
v
irtual in
f
rastructu
re,
wh
ich
is an ex
c
ellen
t enab
ler
f
o
r
d
ig
ital techn
o
lo
g
ie
s lik
e I
n
ternet o
f
T
h
in
g
s (I
o
T)
etc
.
No
back
u
p
ar
ch
iv
al so
lu
tio
n
even
thoug
h
there we
re
m
u
ltip
le
app
licatio
n
bas
ed
ar
ch
iv
al
so
lu
tio
n
s
av
ailab
le
Po
ss
ib
ility
o
f
dep
l
o
y
in
g
con
so
lid
ated
ar
ch
iv
al so
lu
tio
n
with co
m
p
lian
ce
No
clou
d
m
an
ag
em
e
n
t platf
o
r
m
an
d
no
self
-
serv
ice
p
o
rtal
b
ased
pro
v
isio
n
in
g
Dep
lo
y
m
en
t of
hy
b
rid clo
u
d
platf
o
r
m
en
ab
led
with u
s
er
f
riend
ly
in
terfaces
which
help
wit
h
f
aster go
-
t
o
m
arket
ap
p
licati
o
n
dep
lo
y
m
en
ts
Multip
le versio
n
s o
f
op
erating
sy
stem
s
Op
erating
sy
ste
m
s
stan
d
ardizatio
n
while ap
p
licatio
n
m
ig
ration
Legacy
integ
ration
platf
o
r
m
s
Mod
ernizatio
n
of
curre
n
t integ
ration
p
latf
o
r
m
s
No
auto
m
ated
dis
a
ster r
e
co
v
ery
so
lu
ti
o
n
Po
ss
ib
ility
o
f
brin
g
in
g
in DR au
to
m
at
io
n
3.
THE
M
ET
H
OD
We
al
so
fo
ll
owed
data
-
ba
se
d
ap
proach
of
perform
ing
assessm
ent
of
the
cur
re
nt
infrast
ru
ct
ur
e
an
d
work
l
oa
ds
to
qu
al
ify
the
cl
oud
w
orkloa
ds
and
unde
rsta
nd
the
c
urre
nt
arch
it
ect
ural
ga
ps
.
As
a
par
t
of
t
he
so
luti
on
we
propose
d
to
pe
rfor
m
a
qu
ic
k
a
ssessm
ent
fo
r
cl
oud
a
doptio
n
durin
g
tra
ns
it
ion
.
W
e
wa
nted
to
assess,
de
sig
n,
bu
il
d
a
nd
m
i
gr
at
e
the
in
fr
a
structu
re
ove
r
the
per
i
od
of
6
to
8
m
on
th
s
as
per
the
a
gr
e
e
d
m
igrati
on
ti
m
e
li
ne.
Ou
r plan
was
t
o di
vid
e
these tas
ks
i
nto
3 dist
inct p
has
es:
a)
Ph
ase
1:
W
e
w
ou
l
d
pe
rfo
rm
discov
e
ry
an
d
c
loud
assessm
ent
(~
3
Mo
nth
s
)
as
a
par
t
of
tr
ansiti
on
t
o
fin
d
ou
t
the
current
inf
rast
ru
ct
ur
e
sta
te
and
qu
al
ify
the
can
did
at
es
fo
r
m
igrati
on
to
cl
oud
(both
pri
vate
a
nd
pu
blic
cl
oud).
T
he
rec
om
m
end
ed
that
t
he
asses
sm
ent
repor
t
be
a
nal
yz
ed
by
t
he
custom
er
and
based
on
cu
stom
er’
s
feedback
t
he
ta
rget
sta
te
infr
as
tructu
re
will
be
desi
gne
d.
The
ta
r
get stat
e arc
hitec
ture wil
l get ap
pro
ve
d by the c
us
t
om
er p
ri
or to
de
plo
ym
ent.
b)
Ph
ase
2:
I
n
phase
2,
our
pl
an
was
to
con
st
ru
ct
the
ta
rg
et
inf
rastr
uc
ture
on
enter
pr
ise
cl
ou
d
infr
a
struct
ur
e
locat
ed
in
c
us
t
om
er’
s
ge
ogra
ph
ic
l
ocati
on.
This
was
done
to
e
nsure
that
data
relat
e
d
com
pliance
ne
eds
wer
e
m
et
.
Current
wor
klo
ad
s
on
i
ncu
m
ben
t
datace
nte
r
s
w
ou
l
d
be
m
i
gr
at
e
d
to
t
he
cl
oud
in
a
ph
ased
m
ann
er
ov
e
r
the
pe
rio
d
of
4
to
6
m
on
t
hs
(e
xclu
di
ng
asse
ssm
ent).
Th
e
ta
rg
et
infr
a
struct
ur
e
was
to
be
buil
t
based
on
t
he
desig
n
acce
pt
ed
by
cu
stom
er,
al
l
releva
nt
cl
oud
a
nd
m
anag
em
ent
t
oo
ls
w
ould
be
dep
loye
d
and
inte
gr
at
e
d.
Custom
er
app
li
cat
ion
sp
ec
ific
serv
ic
e
cat
al
og
ue
s
w
ould
be
create
d
and
de
plo
ye
d
on
reco
m
m
end
ed
ITSM
to
ol
and
i
nteg
rated
with
cl
oud
m
anag
em
ent p
la
tfor
m
.
c)
Ph
ase
3:
I
n
ph
ase
3,
we
w
ould
be
pro
vi
ding
end
to
en
d
cl
oud
se
rv
ic
es
f
or
the
finan
ci
al
orga
nizat
i
on
with
str
ong
cl
oud
governa
nc
e
in
place.
We
wer
e
to
be
ac
ti
ng
as
a
cl
oud
serv
ic
e
brok
e
rag
e
(CSB)
pro
vid
er
to
e
nsure
that
the
c
us
tom
er
was
assur
e
d
of
opti
m
iz
ed
ta
rg
et
i
nfrastr
uctu
re
and
a
bili
ty
to
adh
e
re t
o
m
arket
tran
s
form
at
i
on r
a
pid
ly
.
As
s
how
n
in
F
igure
2,
we
l
ooked
at
business
do
m
ai
n,
te
chnolo
gy
an
d
ser
vi
ce
delivery
as
key
input
s
and
m
app
ed
these
t
o
key
tr
ansfo
rm
ation
s
su
c
h
as
knowl
edg
e
m
anag
e
m
ent
syst
e
m
set
up
,
cl
ou
d
m
i
gr
at
io
n,
sta
nd
a
rd
iz
at
io
n
&
gove
rn
a
nc
e,
API
ena
ble
d
integ
rati
on
and
dig
it
al
transfor
m
a
ti
on
.
T
he
fig
ure
sho
ws
the
m
ov
e
m
ent
fr
om
s
ta
rt
to
en
d
sta
te
with
tim
el
ine
m
ov
ing
from
1
-
ni
weeks
with
i
niti
at
ives
in
the
tim
el
i
nes
for
var
i
ou
s
key
tra
ns
f
or
m
at
ion
s.
This
helpe
d
us
draw
a
busine
ss
cent
ric
m
igrati
on
a
nd
tra
nsfo
rm
ation
a
ppr
oach
with
ti
m
elines
wh
e
re
we
c
ould
ta
r
get
a
nd
tr
ack
eac
h
t
ran
s
f
or
m
at
ion
f
ro
m
sta
rt
to
en
d
sta
te
.
Busi
ness
Ce
ntric
appr
oach
was
app
li
ed
at
al
l
la
ye
rs
of
the
i
nfrastr
uctu
re
t
o
br
in
g
i
n
the
com
plete
benefit
s
to
the
fi
na
ncial
orga
nizat
ion
.
Data
ce
nter
w
as
treat
ed
as
s
cal
able
plat
f
orm
wh
ic
h
woul
d
br
i
ng
s
peed
and
agili
ty
in
bu
si
ness
app
li
cat
io
n
de
plo
ym
ents,
serv
ers
wer
e
tre
at
ed
as
group
of
busines
s
com
po
ne
nts
he
nce
fail
ure
of
each
com
po
ne
nt
wa
s
m
app
ed
with
fail
ur
e
of
business
functi
onal
it
y
and
hen
ce
the
a
rch
it
ect
ure
w
ou
l
d
be
reali
gn
e
d
base
d on the
business
fu
nctio
nalit
y crit
ic
al
ity.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci,
Vo
l.
13
, N
o.
1
,
Ja
nu
a
ry 20
19
:
85
–
93
90
Figure
2
.
Busi
ness
ce
ntric m
i
gr
at
io
n & tra
nsfo
rm
ation
a
ppr
oach
4.
SOLUTI
ON CO
NS
I
DER
A
TIONS
The
f
ollo
wing
wer
e
the
key
so
luti
on
c
on
si
der
at
io
ns
we
ha
d
ta
ke
n
into
account
w
hile
const
ru
ct
i
ng
the tar
get
in
fr
a
structu
re:
a)
Tw
o
cl
oud
inf
r
ast
ru
ct
ure
loca
ti
on
s
within
th
e
country
lim
its
as
two
avail
abili
ty
zon
es
to
ens
ur
e
data
relat
ed
c
om
pli
ance
requirem
ents
ar
e
m
et
.
On
e
of
t
he
l
oc
at
ion
s
t
o
al
s
o
act
as
pr
im
ary
disaste
r
recovery l
ocati
on
b)
We r
ecom
m
end
ed
a seri
ou
s l
ook
at
“as a ser
vice”
m
od
el
s to
the f
ina
ncial
o
r
ga
nizat
ion
to
b
rin
g
dow
n
costs, w
hich
i
nc
lud
e
d IaaS
a
nd Paa
S se
rv
ic
e
s
c)
We
re
quest
ed
consi
de
rin
g
to
host
50%
s
plit
of
wor
kloa
ds
in
betw
ee
n
tw
o
locat
io
ns
to
pro
vide
act
ive
-
act
ive c
onfig
ur
at
io
n o
f
the
wor
klo
a
ds
d)
S
tora
ge
ti
ers
and
siz
in
g
ha
d
bee
n
co
ns
i
de
red
base
d
on
cur
r
ent
data
pro
vid
e
d
by
the
fina
ncial
orga
nizat
ion
,
to be
validat
ed
durin
g d
ue dil
igence
stage
e)
Ba
ckup
c
onsid
erati
on
s
we
re
base
d
on
cu
rr
e
nt
re
quirem
ents
gi
ven
by
t
he
cust
om
er,
this
w
ou
l
d
be
validat
ed
dur
i
ng
du
e
d
il
ige
nce
f)
Ar
c
hiv
al
s
olu
ti
on w
as
pr
opose
d
as
opti
onal
so
luti
on
g)
Targ
et
i
nfrastr
uctu
re
will
b
e
enab
le
d wit
h m
axi
m
u
m
au
to
m
at
ion
possibl
e
h)
We
reco
m
m
end
ed
consi
der
in
g
sel
f
-
heal so
l
ut
ion
s
be
c
onsid
ered as a
pa
rt of the
targ
et
infr
ast
ru
ct
ure
i)
Con
s
olidate
d I
nteg
rati
on Se
rvi
ces plat
form
so
luti
on
had be
en
c
onsidere
d
j)
Targ
et
i
nfrastr
uctu
re is
bu
il
t t
o
e
nsure
cl
oud serv
ic
e
bro
ker
a
ge
m
od
el
d
el
i
ve
ry
k)
The
ta
rg
et
inf
rastr
uctur
e
m
on
it
or
i
ng
a
nd
m
anag
em
ent
s
olu
ti
on
ha
d
be
en
co
ns
tr
ucted
to
ha
nd
l
e
hybri
d
cl
oud pl
at
fo
rm
an
d
le
ga
cy
d
evices
l)
Business
cent
ric m
igrati
on m
ov
e
gro
up
s
wo
ul
d
be
create
d d
ur
i
ng transf
orm
at
ion
m)
Targ
et
in
frast
r
uctu
re
ha
d
f
eat
ur
es
e
na
bled
f
or
fu
t
ur
e
te
c
hnology
trans
f
orm
at
ion
s
su
c
h
a
s
Ser
ver
-
le
ss
Com
pu
ti
ng
,
D
i
gital
, and Inte
r
net of T
hings
e
tc
.
n)
Cl
oud
LA
N
hard
war
e
a
nd
so
ft
war
e
we
re
siz
ed
s
uitably
for
ser
ve
r
w
orkloa
ds
and
net
w
or
k
com
po
ne
nts
w
hich
i
nclu
de:
1)
LAN S
witc
hing Fa
bri
c
2)
Perim
et
er &
I
nt
ern
al
Fire
wall
3)
In
tr
us
i
on D
et
e
ct
ion
a
nd P
reventi
on at im
po
r
ta
nt Ingress/ E
gr
ess
Z
on
e
s
4)
Exter
nal/DM
Z
(d
em
il
i
ta
r
iz
ed z
on
e
)
a
nd Inter
nal L
oad Bal
an
cer
5)
Rem
ote Cl
ie
nt Ter
m
inal C
on
ne
ct
ion
to
acces
s f
ina
ncial
or
ga
nizat
ion’s
res
ources
6)
Sit
e to site
VP
N
(
virt
ual priv
at
e n
et
w
ork)
7)
Suppor
t
fun
ct
i
on
s
for I
P
Add
resses,
DHCP,
DNS
Evaluation Warning : The document was created with Spire.PDF for Python.
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci
IS
S
N:
25
02
-
4752
Simpli
fi
cation of ap
plicati
on
op
e
ra
ti
ons
us
i
ng clo
ud
and
DevOps
(
A
nsh
u
Pre
mc
hand
)
91
5.
RESU
LT
S
A
ND
DISCU
S
SION:
I
NFRASTR
U
CTU
RE
SEC
URI
TY,
M
ONI
T
ORING
AND
MAN
AGE
M
ENT
We
rec
omm
en
ded
t
hat
cy
ber
secur
it
y
be
up
dated
a
nd
tran
s
it
ion
ed
t
o
SIE
M
(S
ecu
rity
Inform
ation
&
Eve
nt
Ma
nage
m
ent)
Plat
for
m
and
enter
pri
se
vulnera
bil
it
y
m
anag
em
e
nt,
ide
ntit
y
a
ccess
m
anag
em
ent,
p
ubli
c
key
inf
r
ast
ru
ct
ure
an
d
oth
e
r
platf
or
m
L1/L2/L
3
sec
ur
it
y
serv
ic
es
be
spruce
d
up
in
diff
e
re
nt
business
ver
ti
cal
s.
W
e
r
ecom
m
end
e
d
the
f
ollow
i
ng
s
erv
ic
es
be
deli
ver
e
d
as
pa
rt
of
secu
rity
op
er
at
ion
s
cente
r
f
or
th
e
fina
ncial
org
a
ni
zat
ion
:
a)
Secu
rity
I
nfo
r
m
at
ion
and E
ve
nt Mana
gem
e
nt
b)
Vu
l
ner
a
bili
ty
A
ssessm
ent
c)
Penetrati
on
Te
sti
ng
d)
Id
e
ntit
y and A
ccess M
ana
ge
m
ent
e)
Publi
c K
ey
Inf
rastr
uctur
e
We
unde
rstoo
d
that
the
finan
ci
al
orga
ni
zat
ion
’s
lo
ng
te
r
m
strat
egy
was
to
m
ov
e
enter
pr
ise
work
l
oa
ds
to
pub
li
c clo
ud.
Theref
or
e
,
our rec
omm
end
at
io
ns
wer
e
the
fo
ll
owin
g:
a)
Un
i
fied
i
nfrastru
ct
ur
e a
nd a
ppli
cat
ion
m
on
it
or
i
ng
b)
Con
ti
nu
ou
s
d
is
cov
e
ry a
nd au
t
om
at
ed
relat
ion
sh
i
p
m
aps
c)
Finan
ci
al
a
naly
ti
cs o
n p
ubli
c cloud e
xp
e
ns
es
, c
os
t a
nd r
es
our
ce o
pti
m
iz
at
io
ns
d)
Un
i
fied das
hboa
rd
s
& re
ports
for
cl
ou
d op
e
ra
ti
on
s
We
will
d
et
ai
l t
he
sec
ur
it
y, m
on
it
ori
ng a
nd
m
anag
em
ent so
luti
on in
ou
r next
pa
per.
Applic
at
ion O
per
at
io
ns
Rat
io
naliz
at
ion
us
in
g DevO
ps
for Sim
plifie
d
Ma
nag
em
ent:
We
rec
omm
end
ed
that
the
fi
nan
ci
al
orga
ni
zat
ion
strat
egi
cal
ly
m
ov
e
towards
a
de
vOps
m
od
el
fo
r
their
a
pp
li
cat
io
n
op
e
rati
ons,
m
ai
ntenan
ce
a
nd
de
vel
op
m
ent
w
ork
.
T
he
m
ai
n
dr
i
ver
f
or
this
c
hange
w
as
a
nee
d
to im
pr
ov
e
tim
e
-
to
-
m
ark
et
for
n
e
w
a
pp
li
cat
io
n functi
onal
it
y or ot
her
c
ode c
hanges
.
We
pro
po
s
ed
DevO
ps
as
a
Ser
vice
(
DaaS
)
m
od
el
w
hi
ch
povi
des
al
l
t
he
be
nef
it
s
of
de
vOps
as
a
m
anag
ed
cl
ou
d
ser
vice.
Ba
s
ed
on
the
De
vOps
Ma
t
ur
it
y
Assessm
ent
of
the
fina
ncial
orga
nizat
ion’s
current
sta
te
,
we
will
be
able
to
c
reate
a
tim
e
-
bo
un
d,
m
il
est
on
e
base
d
pla
n
to
a
utom
at
e
as
m
uch
as
possible
a
nd
bri
ng
the
entire
co
nt
inu
ous
dep
l
oy
m
ent
pip
el
ine
(CD)
onto
th
e
public
cl
oud.
This
w
ould
enab
le
the
fin
ancial
orga
nizat
ion
to
fo
cu
s
on
oth
e
r
areas
without
hav
i
ng
to
worry
abo
ut
the
de
vOps
sta
ck
m
a
nag
em
ent
and
IT4I
T
work that
will
co
m
e u
nd
e
r
t
he
"Mana
ged Da
aS" u
m
br
el
la
.
Durin
g
D
ue
Dili
gen
ce
ph
a
se,
a
feasibil
it
y
analy
sis
wo
ul
d
be
done
j
oi
ntly
with
the
fina
ncial
orga
nizat
ion
to
unde
rstan
d
al
l
of
their
spe
ci
fic
need
s
a
nd
prov
i
de
cu
stom
iz
ed
so
luti
on
s
le
ve
rag
i
ng
public
cl
oud
f
or
de
vOps
ad
opti
on
keep
i
ng
i
n
m
i
nd
va
rio
us
ot
her
facto
rs
li
ke
cost,
perfor
m
ance
of
t
oo
l
s
an
d
or
c
hestrati
on nee
ds
.
F
r
om
the
sta
te
of
te
ch
nolog
y
oper
at
ions
of
t
he
fina
nci
al
or
ga
nizat
io
n,
we
un
derst
oo
d
that
one
-
pass
m
ov
e
to
th
e
ta
r
get
st
at
e
we
wa
nted
to
reac
h
w
ou
l
d
be
im
po
ssi
ble.
W
e
w
ou
l
d
ha
ve
to
ta
r
get
to
reach
an
inte
rm
ediate
operati
ng
m
od
el
w
her
e
al
l
sim
plific
ation
them
es
wer
e
unde
rw
ay
.
Thi
s
w
ould
al
s
o
he
lp
us
keep trac
k of
pro
gr
e
ss a
nd cours
e
correct a
s
need
e
d.
As
c
ollaborat
ion
is
key
f
or
a
su
ccess
f
ul
devO
ps
m
odel
,
we
rec
omm
end
ed
that
Applic
at
io
n
Op
e
rati
ons
(AO)
team
w
il
l p
erfor
m
the foll
ow
i
ng acti
viti
es:
a)
Pr
ovi
de
cl
ear
def
i
niti
on
of
proces
ses
a
nd
r
esp
on
si
bili
ti
es
acro
s
s
the
de
vOps
or
gan
iz
at
ion
s
(lines
of
bu
si
ness wit
hi
n
the
f
i
nan
ci
al
orga
nizat
ion) a
nd the a
ppli
cat
ion
operati
ons
orga
nizat
ion
b)
Roadm
ap
f
or the im
ple
m
enta
ti
on
c
ov
e
rin
g
a
ll
r
el
evan
t a
rea
s su
c
h
as
s
ugge
sti
ng
a
step
wis
e ap
proac
h
c)
W
it
h
the
se
quence
of
im
ple
m
entat
ion
an
d
pace
f
or
ro
ll
-
out
–
suc
h
as
a
r
ea
to
sta
rt
with
and
how
to
gr
a
dual
ly
scale
up
d)
Sele
ct
ion
a
nd i
m
ple
m
entat
ion
of to
ols s
uppo
rting
de
vOps
e)
Actual im
ple
m
entat
ion
f)
Or
c
hestrati
on a
cro
ss
the
to
ol
-
c
hain
Figure
3
s
how
s
the
ta
rg
et
operati
ng
m
od
e
l
for
t
he
a
pp
li
cat
ion
s
uppo
rt
ser
vices
of
the
fina
ncial
orga
nizat
ion
.
We
are
on
tra
ck
to
at
ta
in
th
e
sam
e.
The
ver
ti
cal
un
it
s
re
fer
to
sh
a
red
f
un
ct
io
ns
ac
ros
s
the
orga
nizat
ion
li
ke
a
ud
it
an
d
r
egu
la
to
ry,
IT4IT
te
am
s,
risk
and
com
pliance
m
anag
e
m
ent
et
c.
The
hori
zon
ta
l
un
it
s
on
to
p
a
r
e
the
business
gro
up
s
,
bu
si
ne
ss
us
e
rs
a
nd
se
rv
ic
e
des
k
that
co
ns
um
e
the
s
erv
ic
es
belo
w
them
.
Cl
oud
m
anag
em
ent
platfor
m
work
s
o
n
t
op
of
the
busi
nes
s
awar
e
c
ommand
ce
nter
w
hi
ch
autom
at
ion
la
ye
r
that
w
orks
on
top
of
the
othe
r
platfo
rm
s
su
ch
as
le
gacy
pla
tfor
m
s,
ap
plica
ti
on
op
e
rati
ons
an
d
s
o
on.
Th
e
fina
l
horizo
ntal l
ay
er r
e
presents
the
en
te
r
pr
ise
clo
ud and
public c
loud se
rv
ic
e
pr
ov
i
der
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
Ind
on
esi
a
n
J
E
le
c Eng &
Co
m
p
Sci,
Vo
l.
13
, N
o.
1
,
Ja
nu
a
ry 20
19
:
85
–
93
92
Figure
3
.
Tar
ge
t
op
e
rati
ng m
od
el
We
al
so
re
quest
ed
suppo
rt
from
the
fina
ncial
organ
iz
a
ti
on
an
d
it
s
app
li
cat
io
n
de
ve
lop
m
ent
&
m
ai
ntenan
ce
(
AD
/
AM)
te
am
s.
T
he
f
ollo
wing
de
pe
nd
e
nci
es
on
the
ap
plica
ti
on
dev
el
opm
ent
&
m
ai
nt
enan
c
e
(AD/AM)
tea
m
s w
as
foresee
n:
a)
The
sel
ect
ion
of
to
ols
(e.
g.,
dep
l
oym
ent
too
ls)
sh
al
l
be
a
li
gn
ed
with
th
e
finan
ci
al
org
anizat
ion’s
init
ia
ti
ves
for
a
uto
m
at
ed
de
plo
ym
ent o
n
te
st
and pr
oductio
n.
b)
Def
i
niti
on
of
wh
e
n dif
fer
e
nt
app
li
cat
io
ns
/t
ea
m
s ar
e rea
dy for t
ransf
or
m
at
i
on
c)
Av
ai
la
bili
ty
(ti
m
e
and
fo
c
us)
of
de
velo
pme
nt
te
am
to
absor
b
knowle
dg
e
an
d
pr
a
ct
ic
e
the
ne
w
capab
il
it
ie
s
d)
Dep
e
ndency
on
oth
e
r
a
pp
li
ca
ti
on
dev
el
opm
ent tea
m
s f
or
r
el
ease co
ordin
at
ion
6.
CONCL
US
I
O
N
Si
m
plific
at
ion
us
in
g
cl
oud
a
nd
devo
ps
a
dopt
ion
ca
nnot
ha
pp
e
n
unt
il
op
e
rati
on
s
an
d
i
nfrastr
ucture
orga
nizat
ion
s
are
m
ade
a
pa
rt
of
t
he
sim
plific
at
ion
pro
cess
a
nd
rati
onal
iz
ed.
T
hese
gro
ups
nee
d
to
be
disrupte
d
an
d
trans
f
or
m
ed
into
an
ef
fecti
ve
devo
ps
m
od
el
to
ensure
busi
ness
nee
ds
of
tod
ay
’s
dig
it
al
world
are
m
et
.
Ag
il
e
&
de
vops
pr
a
ct
ic
es
in
cultur
e,
autom
at
ion
,
le
an,
m
easur
e
m
ent
and
c
ollaborat
io
n
aspe
c
ts
are
gr
eat
ena
blers
for
sim
plific
ati
on
of
op
e
rati
ons
an
d
in
fr
ast
r
uctu
re
orga
niz
at
ion
s
an
d
cl
o
ud
a
doptio
n
(
pri
vate/
public/
hybri
d)
is
an
excell
e
nt
enab
le
r
of
the
si
m
plifi
cat
ion
it
sel
f.
Thes
e
le
ve
rs
le
ad
t
o
qua
ntifia
ble
be
ne
fits.
I
n
a
sh
ort
w
hile,
we
will
be
a
ble
to
wr
it
e
an
ot
her
pa
per
to
s
ha
re
the
qu
a
ntif
ie
d
be
nef
it
s
ac
cru
e
d
to
t
he
fi
nan
ci
al
orga
nizat
ion
r
efer
red
in
this
pap
e
r
due
to
the
si
m
plificati
on
of
ap
plica
ti
on
sup
po
rt
serv
ic
es
a
s
we
ha
ve
ou
tl
ine
d
her
e
.
Op
e
rati
ons
a
nd
inf
rastr
uctu
re
te
a
m
s
m
ay
al
s
o
need
to
re
-
s
ki
ll
,
cro
ss
sk
il
l
and
al
ign
to
t
he
ne
w
way
of
work
i
ng
a
nd
al
s
o
us
e
co
hesive
bu
si
ness
ce
ntr
ic
key
pr
oce
s
s
ind
ic
at
ors.
The
post
pro
du
ct
io
n
chall
enges
an
d
assist
anc
e
nee
ded
from
dev
e
lop
m
ent
te
a
m
s
we
ha
ve
disc
us
se
d
will
fin
d
resona
nce
in
m
any
si
m
il
ar
or
ga
nizat
ion
s.
The
s
ol
ution
te
nets,
s
ol
ution
a
ppr
oac
h,
inte
rim
and
ta
rg
et
ope
rati
ng
m
od
el
can
ac
t
as
a
gu
i
ding
f
orce
f
or
orga
nizat
ions
with
sim
il
ar
i
ssu
es.
Th
r
ough
the
tr
a
ns
f
or
m
at
ion
al
ap
proac
h
we
ha
ve
ou
tl
ined
in
this
pa
per
t
he
ap
plica
ti
on
op
e
rati
ons
te
a
m
s
will
be
in
the
dr
i
ver’s
seat
in
the
orga
nizat
ion’s
jour
ney
towa
rd
s
sim
pli
ficat
ion
a
nd
de
li
ver
in
g gr
eat
er
business
value
to
al
l st
ake
holders
.
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NCE
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Mohd
Yus
ri
Jusoh,
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y
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i
Har
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on
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n
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