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o
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Science
Vo
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38
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.
3
,
J
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2
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2
5
,
p
p
.
20
79
~
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38
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3
.
pp
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79
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89
2079
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1.
I
NT
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D
UCT
I
O
N
C
o
m
p
an
ies
to
d
ay
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s
t
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tech
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wh
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m
f
o
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tab
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m
th
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o
p
e
r
atio
n
s
f
r
o
m
h
o
m
e
[
1
]
,
[
2
]
.
W
h
en
th
e
p
an
d
em
ic
b
e
g
an
,
m
an
y
o
f
th
e
s
m
all
a
n
d
m
ed
iu
m
c
o
m
p
an
ies
in
th
e
wo
r
ld
wer
e
af
f
e
cted
b
ec
a
u
s
e
th
ey
d
id
n
o
t
h
a
v
e
a
p
lan
o
r
s
tr
ateg
y
to
c
o
m
b
at
th
ese
th
r
ea
ts
,
g
iv
in
g
th
e
co
m
p
an
y
a
m
ass
iv
e
lay
o
f
f
to
th
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le
o
r
elim
in
ate
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e
co
m
p
an
y
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r
o
m
th
e
b
u
s
in
ess
to
co
v
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th
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co
s
ts
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en
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r
s
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Pak
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tan
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icate
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th
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3
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m
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ies
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ec
lin
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with
d
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awn
f
r
o
m
co
m
p
etitiv
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b
u
s
in
ess
[
3
]
,
[
4
]
.
T
h
e
ec
o
n
o
m
y
also
af
f
ec
ts
co
m
p
an
ies,
ev
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y
f
o
r
eig
n
co
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n
t
r
y
in
L
atin
Am
er
ica
h
as
a
g
r
ea
t
cr
is
is
,
d
am
ag
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g
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en
tire
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atio
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an
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m
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ies,
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lo
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g
with
th
e
co
r
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av
ir
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s
d
is
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ase
2
0
1
9
(
C
OVI
D
-
19
)
was
a
b
ig
b
lo
w
to
e
n
tr
ep
r
en
eu
r
s
[
5
]
.
Ma
n
y
o
f
th
e
b
u
s
in
ess
es
in
L
atin
Am
er
ica
ar
e
u
s
ed
to
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r
r
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o
u
t
th
ei
r
o
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atio
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s
in
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tr
ad
itio
n
al
way
,
in
d
icatin
g
th
at
im
p
r
o
v
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g
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h
tech
n
o
lo
g
y
is
u
s
u
ally
a
b
ig
g
er
in
v
estme
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t
th
an
th
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b
u
d
g
et
an
d
it
is
d
if
f
icu
lt
to
h
ir
e
en
g
in
ee
r
s
o
r
tech
n
ician
s
to
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elp
th
em
o
p
tim
ize
b
u
s
i
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ess
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s
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ep
a
r
ed
f
o
r
an
y
t
h
r
ea
t
th
at
m
ay
ar
is
e
[
6
]
,
[
7
]
.
I
n
f
latio
n
is
a
v
er
y
s
er
io
u
s
p
r
o
b
lem
i
n
L
atin
Am
er
ican
co
u
n
tr
ies
b
r
i
n
g
in
g
d
esp
air
i
n
p
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p
le,
w
h
ich
is
wh
y
th
er
e
a
r
e
m
ig
r
atio
n
s
to
o
th
e
r
co
u
n
tr
ie
s
in
No
r
th
Am
e
r
ica
an
d
E
u
r
o
p
e
,
also
in
f
latio
n
in
c
o
m
p
an
ies
b
y
in
cr
ea
s
in
g
th
e
p
r
ice
o
f
th
ei
r
p
r
o
d
u
cts
is
a
n
u
is
a
n
ce
f
o
r
co
n
s
u
m
er
s
an
d
m
an
y
co
m
p
an
ies ch
o
o
s
e
to
r
ed
u
ce
s
taf
f
[
8
]
,
[
9
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
5
2
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
38
,
No
.
3
,
J
u
n
e
20
25
:
20
79
-
20
89
2080
I
n
th
e
Per
u
v
ian
co
u
n
tr
y
C
OVI
D
-
1
9
was
a
h
a
r
d
b
l
o
w,
r
esu
lt
in
g
in
m
a
n
y
d
ea
t
h
s
an
d
i
n
f
ec
t
ed
p
eo
p
le
an
d
th
e
co
m
p
a
n
ies
h
ad
n
o
ch
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ice
b
u
t
to
clo
s
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p
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em
is
es,
wh
ich
is
wh
y
th
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co
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n
tr
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is
n
o
t
p
r
ep
ar
ed
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o
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m
b
at
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y
d
is
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th
at
m
ay
ar
is
e,
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n
ly
lar
g
e
co
m
p
an
ies will b
e
r
ea
d
y
f
o
r
it a
n
d
to
o
k
ad
v
an
tag
e
o
f
th
is
th
r
ea
t
b
y
tu
r
n
in
g
it
in
to
a
s
tr
ateg
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to
s
ell
th
eir
p
r
o
d
u
cts
s
in
ce
c
o
n
s
u
m
er
s
b
y
n
ec
ess
ity
wo
u
ld
h
av
e
to
b
u
y
th
eir
s
u
p
p
lies
to
s
u
r
v
iv
e
ev
er
y
d
ay
[
1
0
]
,
[
1
1
]
.
Af
te
r
th
e
p
an
d
em
ic
m
an
y
co
m
p
a
n
ies
an
d
s
m
all
b
u
s
in
ess
es
ch
o
o
s
e
to
co
n
tin
u
e
wo
r
k
in
g
in
a
tr
a
d
itio
n
al
way
with
o
u
t
u
s
in
g
an
y
s
y
s
tem
b
ec
au
s
e
th
ey
c
o
n
s
id
er
it t
o
o
co
s
tly
[
1
2
]
.
T
h
ese
p
r
o
b
lem
s
p
r
esen
ted
in
th
e
in
tr
o
d
u
ctio
n
p
r
o
m
o
tes
in
m
ak
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g
a
s
o
lu
tio
n
f
o
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th
o
s
e
c
o
m
p
an
ies
th
at
s
tar
t
in
th
e
b
u
s
in
ess
o
r
as
also
in
f
lu
en
ce
c
o
m
p
an
ies
to
b
et
o
n
tech
n
o
lo
g
ies
as
it
is
co
n
s
id
er
ed
to
b
e
th
e
b
est
to
o
l
to
im
p
r
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v
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th
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p
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ales
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es
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ar
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tee
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co
n
s
u
m
e
r
th
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er
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ices,
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at
is
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h
av
e
th
e
m
ain
o
b
jectiv
e
o
f
o
p
tim
izin
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s
ales
in
co
m
p
an
ie
s
b
y
ap
p
ly
in
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e
-
c
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m
er
ce
a
n
d
d
ig
ital
m
ar
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etin
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b
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s
.
T
h
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k
will
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s
to
o
p
en
th
e
d
o
o
r
s
to
n
ew
co
m
p
an
ies
th
at
wan
t
to
d
ev
elo
p
n
ew
s
tr
ateg
ies
f
o
r
t
h
e
Per
u
v
ian
s
tate
to
th
e
p
o
i
n
t
o
f
b
ein
g
d
ig
itally
b
r
a
n
d
e
d
o
b
tain
in
g
g
r
ea
ter
r
ec
o
g
n
itio
n
an
d
p
o
s
itio
n
in
g
in
th
e
m
a
r
k
et,
with
th
e
s
u
p
p
o
r
t
o
f
elec
tr
o
n
ic
co
m
m
er
ce
will
allo
w
u
s
er
s
to
m
a
k
e
th
eir
tr
an
s
ac
tio
n
s
th
r
o
u
g
h
t
h
e
web
o
r
m
o
b
ile.
2.
L
I
T
E
R
AT
U
RE
R
E
VI
E
W
T
h
e
s
o
f
twar
e
d
ev
elo
p
m
en
t
h
a
s
th
e
g
r
ea
t
im
p
o
r
ta
n
ce
f
o
r
b
u
s
in
ess
with
g
ettin
g
an
ea
s
e
a
n
d
s
o
lv
in
g
cu
s
to
m
er
p
r
o
b
lem
s
also
in
t
h
is
p
r
o
ject
s
h
o
ws
th
e
im
p
o
r
tan
ce
th
at
will
s
er
v
e
in
b
u
s
in
ess
b
y
ap
p
ly
in
g
e
-
co
m
m
er
ce
an
d
to
p
u
b
lis
h
th
e
p
r
o
d
u
cts
o
f
f
er
ed
b
y
co
m
p
an
ies
is
n
ec
es
s
ar
y
to
h
av
e
a
d
ig
i
tal
m
ar
k
etin
g
p
lan
to
g
et
n
ew
cu
s
to
m
er
s
with
n
e
w
s
ales,
wh
ich
is
wh
y
th
is
au
th
o
r
ap
p
lies
th
is
s
tr
ateg
y
in
th
e
city
o
f
B
an
d
u
n
g
in
d
icatin
g
th
at
with
th
e
h
elp
o
f
d
ig
ital
m
ar
k
etin
g
g
ets
b
etter
co
n
s
u
m
er
co
n
f
id
en
ce
in
d
icatin
g
th
eir
s
atis
f
ac
tio
n
to
m
ak
e
th
eir
p
u
r
c
h
ases
b
y
e
-
co
m
m
er
ce
[
1
3
]
.
Similar
ly
,
in
I
n
d
o
n
esia
s
h
o
ws
th
at
b
u
s
in
ess
with
o
n
lin
e
s
ales
i
s
a
v
er
y
im
p
o
r
ta
n
t
f
ac
to
r
in
d
ica
tin
g
tr
u
s
t
th
an
k
s
to
d
ig
ital
m
a
r
k
etin
g
wh
ich
h
as
p
r
o
v
en
to
b
e
an
in
f
lu
e
n
tial
r
o
le
f
o
r
o
n
lin
e
s
h
o
p
p
in
g
o
f
co
n
s
u
m
er
s
[
1
4
]
.
T
h
is
au
th
o
r
in
d
icate
s
h
o
w
im
p
o
r
tan
t it
was to
r
ea
lize
th
is
cr
ea
tiv
e
id
ea
o
f
im
p
lem
en
tin
g
e
-
c
o
m
m
er
ce
an
d
d
ig
ital
m
ar
k
etin
g
at
th
e
ti
m
e
o
f
th
e
C
OVI
D
-
1
9
p
an
d
em
i
c
b
ec
au
s
e
th
an
k
s
to
th
is
th
ey
m
an
a
g
ed
to
s
u
r
v
iv
e
with
th
e
tr
ad
e
o
f
th
eir
p
r
o
d
u
ct
s
in
d
icatin
g
th
at
n
o
w
m
icr
o
a
n
d
s
m
all
en
ter
p
r
is
es
(
MSE
s
)
an
d
s
m
all
an
d
m
ed
i
u
m
en
ter
p
r
is
es
(
SME
s
)
s
h
o
u
ld
b
e
u
p
d
ated
an
d
p
er
f
o
r
m
th
ese
m
eth
o
d
s
to
n
o
t
s
tag
n
ate
an
d
im
p
r
o
v
e
t
h
eir
s
ales p
r
o
d
u
ctiv
ity
[
1
5
]
.
T
h
e
m
eth
o
d
o
lo
g
y
p
la
y
s
a
v
er
y
im
p
o
r
tan
t
r
o
le
to
ca
r
r
y
o
u
t
an
y
p
r
o
ject
an
d
f
o
r
s
o
f
twar
e
d
ev
elo
p
m
en
t
it is
n
ec
es
s
ar
y
to
h
av
e
an
ag
ile
m
eth
o
d
o
lo
g
y
,
ac
co
r
d
in
g
to
th
is
au
th
o
r
u
s
ed
th
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
to
d
ev
el
o
p
an
e
-
co
m
m
e
r
ce
with
th
e
m
o
d
el
-
v
iew
-
co
n
tr
o
ller
(
MV
C
)
m
o
d
el
b
ein
g
a
f
lex
ib
le
m
et
h
o
d
co
m
p
ar
ed
to
o
th
e
r
m
eth
o
d
o
l
o
g
ies
s
u
ch
as
s
tatic
wate
r
f
all,
th
is
m
eth
o
d
o
lo
g
y
s
h
o
ws
th
e
test
s
o
b
tain
in
g
a
f
u
n
ctio
n
al
s
y
s
tem
[
1
6
]
.
T
h
is
n
ex
t
au
t
h
o
r
s
h
o
ws
th
e
r
i
s
e
in
s
ales
d
u
r
in
g
th
e
p
a
n
d
em
ic
wh
en
d
e
v
elo
p
in
g
e
-
c
o
m
m
e
r
ce
with
th
e
Scr
u
m
m
eth
o
d
o
l
o
g
y
f
o
r
its
d
ev
el
o
p
m
en
t
is
n
ec
ess
ar
y
to
h
av
e
p
r
o
g
r
am
m
er
s
f
o
r
s
o
f
twar
e
d
e
v
elo
p
m
en
t
an
d
teac
h
er
s
wh
o
ar
e
r
esp
o
n
s
ib
le
f
o
r
o
r
g
a
n
izin
g
th
e
test
s
o
f
ea
c
h
s
p
r
in
t,
th
e
s
atis
f
ac
tio
n
o
f
u
s
in
g
th
e
m
eth
o
d
o
l
o
g
y
is
th
e
ac
ce
ler
atio
n
o
f
its
p
r
o
ce
s
s
es a
n
d
f
in
is
h
th
e
p
r
o
ject
at
th
e
p
r
o
p
o
s
ed
tim
e
[
1
7
]
.
T
h
e
s
o
f
twar
e
d
ev
elo
p
m
en
t
is
th
e
tech
n
ical
p
ar
t
to
s
h
o
w
th
e
e
-
co
m
m
er
ce
s
y
s
tem
,
lik
ewise
th
is
au
th
o
r
s
h
o
ws
th
e
m
eth
o
d
o
f
its
d
ev
e
lo
p
m
en
t
u
s
in
g
B
o
o
ts
tr
ap
4
.
0
alo
n
g
with
J
av
aScr
ip
t
(
JS
)
an
d
C
ascad
in
g
Sty
le
Sh
ee
ts
(
C
SS
)
ac
co
m
p
an
ied
b
y
b
ac
k
e
n
d
o
p
e
r
atio
n
s
with
ap
p
l
icatio
n
p
r
o
g
r
a
m
m
in
g
in
ter
f
ac
e
s
(
API
s
)
u
s
in
g
th
e
Djan
g
o
s
y
s
tem
to
ad
d
p
r
o
d
u
c
ts
to
th
e
s
h
o
p
p
in
g
ca
r
t
an
d
m
ak
e
o
n
lin
e
p
u
r
ch
ases
,
s
o
th
at
th
e
u
s
er
ca
n
m
ak
e
th
eir
o
n
lin
e
p
ay
m
e
n
t
u
s
in
g
Pay
P
al
f
o
r
s
ec
u
r
e
p
ay
m
en
t,
b
ei
n
g
a
s
u
cc
ess
f
u
l
s
y
s
tem
f
o
r
o
n
lin
e
s
ales
[
1
8
]
.
T
o
g
r
o
u
p
th
e
s
tr
ateg
ies,
it
is
n
ec
ess
ar
y
to
h
av
e
a
d
i
g
ital
m
ar
k
etin
g
p
r
o
ject
is
wh
y
th
is
au
th
o
r
s
h
o
ws
th
e
s
atis
f
ac
tio
n
o
f
m
ak
in
g
s
ales
a
n
d
attr
ac
t
n
ew
cu
s
to
m
er
s
f
o
r
co
m
p
an
ies
u
s
in
g
ad
v
e
r
tis
in
g
b
y
s
o
cial
n
etwo
r
k
s
s
eg
m
en
tin
g
id
ea
l
p
u
b
lic
s
ee
k
in
g
a
s
im
ilar
ity
to
th
e
p
r
o
d
u
ct
o
f
f
er
e
d
b
y
co
m
p
an
ies
[
1
9
]
.
Fin
ally
,
th
is
au
th
o
r
s
h
o
ws th
e
to
o
ls
f
o
r
th
e
d
ev
elo
p
m
en
t o
f
d
ig
ital m
ar
k
etin
g
with
th
e
f
am
o
u
s
s
o
cial
n
etwo
r
k
s
to
cr
ea
te
s
u
cc
ess
f
u
l
ca
m
p
aig
n
s
an
d
s
ell
th
eir
p
r
o
d
u
cts
th
r
o
u
g
h
Face
b
o
o
k
an
d
I
n
s
tag
r
am
,
f
in
d
in
g
th
e
id
ea
l
au
d
ien
ce
to
s
ell
th
eir
p
r
o
d
u
cts
h
av
in
g
a
n
ef
f
ec
tiv
e
s
o
lu
tio
n
to
o
p
tim
ize
th
e
b
r
a
n
d
o
f
th
e
b
u
s
in
ess
[
2
0
]
.
T
h
ese
au
th
o
r
s
s
h
o
w
th
e
s
atis
f
ac
tio
n
o
f
ca
r
r
y
in
g
o
u
t
th
e
d
ev
elo
p
m
e
n
t
o
f
e
-
co
m
m
er
ce
an
d
d
ig
ital
m
ar
k
eti
n
g
af
f
ir
m
in
g
a
g
r
ea
t
im
p
o
r
tan
ce
f
o
r
b
u
s
in
ess
es,
wh
ich
is
wh
y
th
e
p
r
o
p
o
s
al
th
at
s
h
o
ws
th
e
p
r
o
ject
is
to
b
r
in
g
n
ew
cr
ea
tiv
e
id
ea
s
an
d
en
co
u
r
ag
e
b
u
s
in
ess
es
to
b
et
o
n
th
ese
m
eth
o
d
s
also
o
p
tim
ize
th
eir
s
ales
p
r
o
ce
s
s
es
an
d
b
r
an
d
r
ec
o
g
n
itio
n
th
r
o
u
g
h
s
o
cial
n
etwo
r
k
s
.
3.
M
E
T
H
O
D
3
.
1
.
Scrum
T
h
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
is
ap
p
lied
in
co
m
p
an
ies f
o
r
g
o
o
d
p
r
ac
tices f
o
r
g
r
o
u
p
an
d
co
llab
o
r
ativ
e
wo
r
k
o
b
tain
in
g
b
etter
p
r
o
ject
r
esu
lts
[
2
1
]
.
Scr
u
m
wo
r
k
s
d
ir
ec
tly
with
s
p
r
in
ts
th
at
ar
e
s
h
o
r
t
tim
e
i
n
cr
em
en
ts
with
th
e
o
b
jectiv
e
o
f
p
r
esen
tin
g
a
p
ar
t
o
f
th
e
f
u
n
ctio
n
al
s
y
s
tem
,
th
e
s
e
s
p
r
in
ts
u
s
u
ally
last
1
o
r
4
wee
k
s
at
th
e
m
o
s
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2502
-
4
7
5
2
Op
timiz
a
tio
n
o
f sa
les b
y
a
p
p
l
yin
g
e
-
co
mme
r
ce
a
n
d
d
ig
ita
l
… (
Mis
a
el
La
z
o
-
A
ma
d
o
)
2081
o
b
tain
in
g
a
s
atis
f
ied
cu
s
to
m
er
[
2
2
]
,
[
2
3
]
.
Scr
u
m
ad
a
p
ts
v
er
y
well
to
ch
an
g
es
an
d
is
p
r
ep
ar
ed
to
m
in
im
ize
th
e
r
is
k
s
o
f
th
e
p
r
o
jects,
in
th
e
wo
r
k
team
it
h
as
th
e
m
ain
r
o
les
th
at
is
p
r
o
d
u
ct
o
wn
er
w
h
o
is
in
ch
ar
g
e
o
f
o
b
s
er
v
in
g
th
e
co
m
p
lia
n
ce
o
f
a
ll
th
e
r
e
q
u
ir
em
e
n
ts
r
aised
to
d
eliv
er
th
e
co
r
r
ec
t
p
r
o
d
u
ct,
s
cr
u
m
m
aster
wh
o
is
in
ch
ar
g
e
o
f
ca
r
r
y
in
g
o
u
t
th
e
g
o
o
d
p
r
ac
tices
elim
in
atin
g
th
e
o
b
s
tacle
s
th
at
th
e
wo
r
k
tea
m
g
o
es
th
r
o
u
g
h
a
n
d
p
r
o
m
o
tes
th
e
co
llab
o
r
ativ
e
wo
r
k
an
d
f
in
ally
th
e
d
e
v
elo
p
m
e
n
t
team
th
at
is
in
ch
ar
g
e
o
f
d
ev
elo
p
in
g
th
e
p
r
o
ject
[
2
4
]
,
[
2
5
]
,
as sh
o
wn
in
Fig
u
r
e
1
.
Fig
u
r
e
1
.
Me
th
o
d
o
lo
g
y
s
cr
u
m
3
.
1
.
1
.
P
la
nn
ing
m
ee
t
ing
T
h
e
in
itial
p
h
ase
o
f
th
e
s
cr
u
m
m
eth
o
d
o
l
o
g
y
,
t
h
e
p
lan
n
i
n
g
p
h
ase,
is
ess
en
tial
to
e
s
tab
li
s
h
a
s
o
lid
f
o
u
n
d
atio
n
f
o
r
s
o
f
twar
e
d
e
v
el
o
p
m
en
t.
C
lo
s
e
co
llab
o
r
atio
n
b
etwe
en
th
e
d
ev
elo
p
m
e
n
t
team
an
d
th
e
p
r
o
d
u
ct
o
wn
er
e
n
s
u
r
es
a
clea
r
u
n
d
er
s
t
an
d
in
g
o
f
th
e
p
r
o
ject
g
o
als
a
n
d
an
ac
cu
r
ate
esti
m
atio
n
o
f
th
e
ef
f
o
r
t
r
e
q
u
ir
ed
f
o
r
ea
ch
task
.
I
n
ad
d
itio
n
to
est
im
atio
n
,
th
is
p
h
ase
in
v
o
lv
es
p
r
o
ac
tiv
e
id
e
n
tific
atio
n
o
f
p
o
ten
tial
r
is
k
s
a
n
d
alig
n
m
en
t o
f
p
r
io
r
ities
am
o
n
g
all
s
tak
eh
o
ld
er
s
.
Ag
ile
p
r
o
ject
m
an
ag
em
en
t to
o
ls
an
d
p
r
o
ce
s
s
es a
r
e
estab
lis
h
ed
,
p
r
o
m
o
tin
g
tr
a
n
s
p
ar
en
c
y
a
n
d
o
p
en
c
o
m
m
u
n
icatio
n
.
As
p
lan
n
in
g
p
r
o
g
r
ess
es,
f
lex
ib
ilit
y
is
al
lo
wed
to
ad
ju
s
t
a
n
d
im
p
r
o
v
e
d
ec
is
io
n
s
,
th
u
s
en
s
u
r
i
n
g
th
at
th
e
p
r
o
ject
is
well
p
r
ep
ar
ed
to
m
o
v
e
s
u
cc
ess
f
u
lly
in
to
th
e
n
ex
t
s
tag
es
o
f
d
ev
elo
p
m
e
n
t
[
2
6
]
,
[
2
7
]
.
3
.
1
.
2
.
Sp
rint
ba
ck
lo
g
T
h
e
s
ec
o
n
d
p
h
ase
o
f
th
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
,
k
n
o
wn
as
s
p
r
in
t
b
ac
k
lo
g
,
d
elv
es
in
to
th
e
d
e
f
in
itio
n
o
f
task
s
with
in
a
s
p
ec
if
ic
tim
e
f
r
am
e
.
T
h
is
p
r
o
ce
s
s
n
o
t
o
n
ly
e
n
s
u
r
es
v
is
ib
ilit
y
o
f
th
e
estab
lis
h
ed
r
eq
u
ir
em
en
ts
,
b
u
t
also
p
r
o
m
o
tes
a
clea
r
c
o
m
m
itm
en
t
to
ac
c
o
m
p
lis
h
th
e
t
ask
s
with
in
th
e
estab
lis
h
ed
ti
m
e
lim
its
,
as
well
as
d
eter
m
in
es
th
e
n
u
m
b
er
o
f
s
p
r
in
ts
n
ee
d
ed
to
d
eliv
er
v
alu
a
b
le
f
u
n
ctio
n
ality
in
a
n
iter
ativ
e
an
d
co
n
ti
n
u
o
u
s
m
an
n
er
.
T
h
is
p
h
ase
is
ess
en
ti
al
to
estab
lis
h
a
clea
r
an
d
ac
h
iev
ab
le
r
o
a
d
m
ap
f
o
r
t
h
e
tea
m
,
wh
ich
f
ac
ilit
ates
ef
f
icien
t
an
d
ef
f
ec
tiv
e
p
r
o
ject
ex
ec
u
tio
n
[
2
8
]
.
Af
ter
d
ef
in
i
n
g
th
e
u
s
er
s
to
r
ies
in
co
llab
o
r
atio
n
with
th
e
team
,
we
m
o
v
e
o
n
to
th
e
n
ex
t
s
tag
e
o
f
th
e
p
r
o
ce
s
s
,
th
e
"Sp
r
in
t
B
a
ck
lo
g
".
T
h
is
p
h
ase
in
v
o
lv
es
esti
m
atin
g
th
e
ef
f
o
r
t
r
eq
u
ir
ed
f
o
r
ea
c
h
u
s
er
s
to
r
y
an
d
g
r
o
u
p
i
n
g
it
in
to
s
p
r
i
n
ts
.
As
s
p
ec
if
ied
in
T
ab
le
1
,
a
to
tal
o
f
3
s
p
r
in
ts
ar
e
p
lan
n
ed
to
ad
d
r
ess
th
e
id
en
ti
f
ied
task
s
.
T
h
e
f
ir
s
t
s
p
r
in
t
is
s
p
r
ea
d
o
v
e
r
4
wee
k
s
o
f
wo
r
k
,
wh
ile
th
e
s
ec
o
n
d
s
p
r
in
t
h
as
b
ee
n
ca
lcu
lated
to
s
p
an
3
wee
k
s
.
T
h
is
d
etailed
p
lan
n
in
g
estab
lis
h
es
a
clea
r
ti
m
ef
r
am
e
f
o
r
p
r
o
ject
ex
ec
u
tio
n
an
d
h
elp
s
to
ef
f
icie
n
tly
d
is
tr
ib
u
te
task
s
o
v
er
th
e
a
llo
tted
tim
e,
th
u
s
en
s
u
r
in
g
s
tead
y
an
d
m
ea
n
in
g
f
u
l
p
r
o
g
r
ess
to
war
d
s
th
e
s
p
r
in
t a
n
d
o
v
er
all
p
r
o
ject
o
b
jectiv
es.
Fig
u
r
e
2
illu
s
tr
ates
th
e
s
tar
t
o
f
th
e
web
s
ite
wi
th
th
e
li
s
t
o
f
e
-
co
m
m
er
ce
p
u
r
ch
ases
an
d
o
f
f
er
s
.
T
h
e
f
ir
s
t
v
is
u
aliza
tio
n
in
Fig
u
r
e
2
(
a)
em
p
h
asizes
f
u
n
ctio
n
ality
th
at
s
ee
k
s
to
p
r
o
v
id
e
u
s
er
s
with
a
d
etailed
v
iew
o
f
av
ailab
le
p
r
o
d
u
cts
an
d
o
f
f
er
s
,
ev
en
if
th
ey
ar
e
n
o
t
in
itially
ev
id
en
t
in
th
e
e
-
co
m
m
e
r
ce
in
ter
f
ac
e.
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h
e
u
s
er
s
to
r
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f
o
cu
s
es
o
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en
h
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cin
g
t
h
e
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er
ex
p
er
ien
ce
b
y
en
s
u
r
i
n
g
v
is
ib
ilit
y
o
f
p
r
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d
u
cts
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d
p
r
o
m
o
tio
n
s
th
at
m
ig
h
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g
o
u
n
n
o
ticed
.
I
n
th
e
f
o
llo
win
g
Fig
u
r
e
2
(
b
)
,
t
h
e
u
s
er
h
ig
h
lig
h
ts
th
e
ca
talo
g
d
is
p
lay
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wh
e
r
e
p
r
o
d
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cts
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e
s
o
r
ted
b
y
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en
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e
r
(
m
en
,
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m
en
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a
n
d
ch
ild
r
en
)
an
d
d
is
co
u
n
ts
av
aila
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le
o
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atis
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h
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p
p
in
g
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p
er
ien
ce
.
T
h
is
g
r
ap
h
ical
r
ep
r
esen
tatio
n
p
r
o
v
id
es
a
clea
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v
is
u
al
u
n
d
er
s
tan
d
in
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o
f
h
o
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f
u
n
ctio
n
ality
is
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ein
g
im
p
lem
en
ted
t
o
en
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an
ce
t
h
e
o
n
lin
e
s
h
o
p
p
i
n
g
ex
p
er
ien
ce
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
5
2
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
38
,
No
.
3
,
J
u
n
e
20
25
:
20
79
-
20
89
2082
T
ab
le
1
.
R
esu
lts
o
f
th
e
an
aly
s
i
s
ID
U
ser
h
i
st
o
r
y
H1
A
s a
u
ser I
n
e
e
d
t
o
s
e
e
t
h
e
p
r
o
d
u
c
t
s
o
f
f
e
r
e
d
b
y
t
h
e
c
o
m
p
a
n
y
t
o
ma
k
e
s
a
l
e
s.
H2
A
s a
u
ser I
n
e
e
d
t
o
r
e
g
i
st
e
r
m
y
p
e
r
so
n
a
l
d
a
t
a
t
o
l
o
g
i
n
t
o
t
h
e
e
-
c
o
mm
e
r
c
e
.
H3
A
s a
u
ser I
n
e
e
d
a
l
o
g
i
n
t
o
a
c
c
e
ss
t
h
e
e
-
c
o
m
merc
e
a
c
c
o
u
n
t
.
H4
A
s a
u
ser I
n
e
e
d
t
o
h
a
v
e
t
h
e
o
p
t
i
o
n
t
o
r
e
c
o
v
e
r
my
a
c
c
o
u
n
t
p
a
ssw
o
r
d
.
H5
A
s a
u
ser I
n
e
e
d
t
o
r
e
q
u
e
s
t
a
n
o
r
d
e
r
a
n
d
f
i
n
d
y
o
u
r
l
o
c
a
t
i
o
n
f
o
r
p
e
r
so
n
a
l
i
z
e
d
a
d
v
i
c
e
.
H6
A
s a
u
ser I
n
e
e
d
t
o
v
e
r
i
f
y
t
h
e
c
o
mp
a
n
y
’
s i
n
f
o
r
m
a
t
i
o
n
t
o
i
n
f
o
r
m
w
h
a
t
t
h
e
c
o
mp
a
n
y
d
o
e
s.
H7
A
s a
u
ser I
n
e
e
d
a
p
r
o
d
u
c
t
c
a
t
a
l
o
g
t
o
c
h
e
c
k
t
h
e
l
i
s
t
b
y
c
a
t
e
g
o
r
y
.
H8
A
s a
u
ser I
n
e
e
d
t
o
v
i
su
a
l
i
z
e
t
h
e
si
z
e
s
o
f
t
h
e
p
r
o
d
u
c
t
t
o
a
d
d
t
o
t
h
e
s
h
o
p
p
i
n
g
c
a
r
t
.
H9
A
s a
u
ser I
n
e
e
d
t
o
h
a
v
e
a
sh
o
p
p
i
n
g
c
a
r
t
t
o
st
o
r
e
m
y
c
h
o
s
e
n
p
r
o
d
u
c
t
s.
H
1
0
A
s a
u
ser I
n
e
e
d
t
o
f
i
l
l
i
n
m
y
p
e
r
so
n
a
l
a
n
d
a
d
d
r
e
ss
i
n
f
o
r
ma
t
i
o
n
t
o
d
e
l
i
v
e
r
t
h
e
o
r
d
e
r
.
H
1
1
A
s a
u
ser I
n
e
e
d
m
y
p
a
y
me
n
t
sy
st
e
m t
o
c
o
u
n
t
w
i
t
h
c
r
e
d
i
t
a
n
d
d
e
b
i
t
c
a
r
d
p
a
y
men
t
s,
c
a
s
h
p
a
y
m
e
n
t
a
n
d
t
h
e
Y
a
p
e
d
i
g
i
t
a
l
w
a
l
l
e
t
s
o
I
c
a
n
ma
k
e
m
y
p
u
r
c
h
a
ses
c
o
mf
o
r
t
a
b
l
y
a
n
d
q
u
i
c
k
l
y
.
H
1
2
A
s a
u
ser I
n
e
e
d
t
h
a
t
a
t
t
h
e
e
n
d
o
f
t
h
e
p
u
r
c
h
a
se
y
o
u
se
n
d
me
t
h
e
o
r
d
e
r
c
o
d
e
t
o
v
e
r
i
f
y
t
h
a
t
t
h
e
o
r
d
e
r
i
s
p
u
r
c
h
a
se
d
.
H
1
3
A
s a
u
ser I
n
e
e
d
t
o
h
a
v
e
a
t
r
a
c
k
i
n
g
o
f
my
o
r
d
e
r
t
o
v
e
r
i
f
y
i
f
i
t
a
r
r
i
v
e
d
c
o
r
r
e
c
t
l
y
.
H
1
4
A
s a
u
ser I
n
e
e
d
a
c
h
a
t
b
o
t
o
r
W
h
a
t
s
a
p
p
c
o
n
t
a
c
t
t
o
r
e
q
u
e
st
m
o
r
e
i
n
f
o
r
ma
t
i
o
n
o
r
c
l
a
r
i
f
y
a
n
y
q
u
e
st
i
o
n
s
.
(
a)
(
b
)
Fig
u
r
e
2
.
E
-
co
m
m
e
r
ce
web
s
ite
(
a)
u
s
er
d
is
p
lay
s
th
e
h
o
m
e
p
ag
e
o
f
th
e
e
-
co
m
m
er
ce
web
s
it
e
an
d
(
b
)
u
s
er
d
is
p
lay
s
th
e
s
h
o
p
p
in
g
lis
t
Fig
u
r
e
3
p
r
o
v
id
es
a
clea
r
v
is
u
al
g
u
id
e
t
o
th
e
p
r
o
ce
s
s
o
f
s
elec
tin
g
s
izes
an
d
ad
d
in
g
t
h
em
t
o
th
e
ca
r
t.
T
h
is
f
u
n
ctio
n
ality
is
in
ten
d
e
d
to
s
im
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I
n
d
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J
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4
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a)
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b
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Fig
u
r
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4
.
Or
d
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g
p
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)
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ase
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ip
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Fig
u
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5
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Fig
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5
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.
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.
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Fig
u
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5
(
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,
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h
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ter
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etails.
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ctio
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(
a)
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b
)
Fig
u
r
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5
.
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m
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s
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(a
)
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b
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it c
ar
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in
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o
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alize
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u
r
ch
ase
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
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4
7
5
2
I
n
d
o
n
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J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
38
,
No
.
3
,
J
u
n
e
20
25
:
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79
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2084
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h
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ase
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ctio
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.
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l
im
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a
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icatio
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ab
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s
tatu
s
o
f
th
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u
r
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ase.
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h
ase
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ir
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tes to
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.
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u
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6
.
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l c
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letio
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ase
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last
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r
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ac
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u
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7
,
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D
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ates
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u
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7
(
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.
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ap
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ical
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ig
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Fig
u
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ch
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ated
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ality
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at
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o
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r
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.
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e
s
u
cc
ess
f
u
l
im
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lem
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f
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is
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e
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n
d
in
ter
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f
th
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y
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th
u
s
im
p
r
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in
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u
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er
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r
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g
h
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t
th
e
e
n
tire
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u
r
ch
as
in
g
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r
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ce
s
s
o
n
th
e
e
-
co
m
m
er
ce
p
latf
o
r
m
.
(
a)
(
b
)
Fig
u
r
e
7
.
Pu
r
c
h
ase
tr
ac
k
in
g
(a
)
u
s
er
en
ter
t
h
e
p
u
r
ch
ase
id
an
d
(
b
)
u
s
er
d
is
p
lay
s
th
e
tr
ac
k
in
g
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2502
-
4
7
5
2
Op
timiz
a
tio
n
o
f sa
les b
y
a
p
p
l
yin
g
e
-
co
mme
r
ce
a
n
d
d
ig
ita
l
… (
Mis
a
el
La
z
o
-
A
ma
d
o
)
2085
3
.
1
.
3
.
Da
ily
m
ee
t
ing
s
I
n
th
is
th
ir
d
p
h
ase
o
f
th
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
,
k
n
o
wn
as
th
e
d
aily
s
cr
u
m
m
ee
tin
g
,
tea
m
m
em
b
er
s
m
ee
t
to
ad
d
r
ess
p
o
ten
tial
o
b
s
tacle
s
th
at
co
u
ld
ar
is
e
in
th
e
f
o
llo
win
g
s
p
r
i
n
ts
.
T
h
ese
m
ee
tin
g
s
,
lim
ited
to
a
m
ax
im
u
m
o
f
1
5
m
in
u
tes,
allo
w
f
o
r
q
u
ic
k
id
e
n
tific
atio
n
o
f
p
r
o
b
lem
s
a
n
d
ad
ap
tatio
n
s
n
ee
d
ed
to
av
o
id
d
elay
s
in
th
e
p
la
n
n
ed
s
p
r
in
ts
.
T
h
ey
ar
e
s
tr
u
ctu
r
ed
a
r
o
u
n
d
th
r
ee
k
e
y
q
u
esti
o
n
s
,
"Wh
at
d
id
I
d
o
y
est
er
d
ay
?"
,
"Wh
at
am
I
g
o
in
g
to
d
o
to
d
a
y
?"
an
d
"
W
h
at
im
p
ed
im
en
ts
d
o
I
h
av
e?
",
f
ac
ilit
atin
g
tr
an
s
p
ar
en
t
c
o
m
m
u
n
icatio
n
an
d
ef
f
ec
tiv
e
co
llab
o
r
atio
n
to
k
ee
p
th
e
p
r
o
ject
p
r
o
g
r
ess
o
n
tr
ac
k
[
2
9
]
,
[
3
0
]
.
3
.
1
.
4
.
Sp
rint
re
v
iew
T
h
e
f
o
u
r
th
p
h
ase
o
f
th
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
,
k
n
o
wn
as
th
e
s
p
r
in
t
r
e
v
iew
m
ee
tin
g
,
f
o
cu
s
es
o
n
p
r
esen
tin
g
th
e
p
r
o
g
r
ess
ac
h
iev
ed
d
u
r
in
g
ea
c
h
iter
atio
n
an
d
d
eter
m
in
in
g
th
e
r
em
ain
i
n
g
task
s
to
b
e
co
m
p
leted
.
Du
r
in
g
th
is
m
ee
tin
g
,
th
e
f
u
n
c
tio
n
al
s
p
r
in
t
is
p
r
esen
ted
to
t
h
e
cu
s
to
m
er
,
an
d
co
n
ti
n
u
es
u
n
til
th
e
cu
s
to
m
er
is
s
atis
f
ied
an
d
ac
ce
p
ts
th
e
d
eli
v
er
ab
le
s
.
T
h
ese
s
ess
io
n
s
,
wh
i
ch
ca
n
ex
ten
d
u
p
to
4
h
o
u
r
s
p
er
4
-
wee
k
s
p
r
in
t,
p
r
o
v
id
e
a
v
ital
o
p
p
o
r
tu
n
ity
f
o
r
cu
s
to
m
er
f
ee
d
b
ac
k
an
d
v
ali
d
atio
n
o
f
th
e
w
o
r
k
p
er
f
o
r
m
ed
,
en
s
u
r
in
g
ef
f
ec
tiv
e
alig
n
m
en
t w
ith
cu
s
to
m
er
ex
p
e
ctatio
n
s
an
d
r
eq
u
ir
em
en
ts
[
3
1
]
.
3
.
1
.
5
.
Ret
ro
s
pect
iv
e
re
v
iew
T
h
e
last
p
h
ase
o
f
th
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
,
k
n
o
wn
as
th
e
r
etr
o
s
p
ec
tiv
e,
f
o
cu
s
es
o
n
th
e
d
etailed
an
aly
s
is
o
f
th
e
p
o
s
itiv
e
an
d
n
e
g
ativ
e
asp
ec
ts
o
f
th
e
p
r
o
ject
c
ar
r
ied
o
u
t,
with
th
e
p
u
r
p
o
s
e
o
f
id
en
tify
i
n
g
less
o
n
s
lear
n
ed
an
d
av
o
id
in
g
th
e
r
e
p
e
titi
o
n
o
f
m
is
tak
es
in
f
u
tu
r
e
p
r
o
jects.
T
h
is
s
tag
e
is
cr
u
cial
to
f
o
s
ter
co
n
tin
u
o
u
s
im
p
r
o
v
em
e
n
t
o
f
th
e
team
an
d
th
e
p
r
o
ce
s
s
,
en
co
u
r
a
g
in
g
co
n
s
tr
u
ctiv
e
r
ef
lectio
n
o
n
wh
at
wo
r
k
ed
well
an
d
wh
a
t
ar
ea
s
co
u
ld
b
e
im
p
r
o
v
ed
.
T
h
r
o
u
g
h
th
is
f
ee
d
b
a
ck
an
d
s
elf
-
a
s
s
es
s
m
en
t
p
r
o
ce
s
s
,
th
e
Scr
u
m
team
ca
n
o
p
tim
ize
its
p
er
f
o
r
m
a
n
ce
a
n
d
in
cr
ea
s
e
ef
f
ec
tiv
en
ess
o
n
f
u
tu
r
e
p
r
o
jects,
th
u
s
p
r
o
m
o
tin
g
a
cy
cle
o
f
co
n
s
tan
t
im
p
r
o
v
em
e
n
t a
n
d
ev
o
lu
tio
n
[
3
2
]
.
4.
RE
SU
L
T
S
T
h
e
r
esu
lts
will
p
r
esen
t
th
e
s
atis
f
ac
tio
n
ex
p
r
ess
ed
b
y
th
e
s
p
ec
ialis
ts
r
eg
ar
d
in
g
th
e
u
s
e
o
f
au
g
m
en
ted
r
ea
lity
,
p
r
o
v
id
i
n
g
a
d
etailed
o
v
e
r
v
iew
o
f
t
h
e
ad
v
an
tag
e
s
an
d
d
is
ad
v
an
tag
es
ex
p
e
r
ien
ce
d
,
as
well
as
a
co
m
p
r
eh
e
n
s
iv
e
co
m
p
a
r
is
o
n
with
o
th
er
m
eth
o
d
o
lo
g
ies
em
p
lo
y
ed
.
T
h
is
f
ee
d
b
ac
k
p
r
o
v
i
d
ed
b
y
s
p
ec
ialis
ts
wil
l
b
e
cr
u
cial
to
u
n
d
er
s
tan
d
th
e
a
ctu
al
ef
f
ec
tiv
en
ess
an
d
im
p
ac
t
o
f
a
u
g
m
en
te
d
r
ea
lity
in
th
e
co
n
tex
t
o
f
c
h
ild
r
en
with
au
tis
m
.
I
n
ad
d
itio
n
,
it
will
id
en
tify
ar
ea
s
o
f
s
u
cc
ess
an
d
o
p
p
o
r
t
u
n
ities
f
o
r
im
p
r
o
v
em
e
n
t
in
th
e
d
esig
n
an
d
im
p
lem
en
tatio
n
o
f
th
e
tec
h
n
o
lo
g
y
.
T
h
is
co
m
p
r
eh
en
s
iv
e
e
v
alu
atio
n
will
h
elp
th
e
d
e
v
elo
p
m
en
t
team
m
ak
e
in
f
o
r
m
e
d
d
ec
is
io
n
s
,
g
u
id
in
g
th
em
to
war
d
s
co
n
tin
u
o
u
s
r
ef
i
n
em
en
t
o
f
au
g
m
en
ted
r
ea
lity
to
m
o
r
e
ef
f
ec
tiv
ely
ad
d
r
ess
th
e
s
p
ec
if
ic
n
ee
d
s
o
f
t
h
is
u
s
er
g
r
o
u
p
.
4
.
1
.
E
x
pert
v
a
lid
a
t
io
n
T
h
e
v
alid
atio
n
o
f
e
x
p
er
ts
in
d
i
ca
ted
an
ap
p
r
o
v
al
s
co
r
e
f
o
r
th
e
ac
ce
p
tan
ce
cr
iter
ia
o
n
th
e
s
o
f
twar
e
f
o
r
wh
ich
th
e
s
ev
en
e
x
p
er
t’
s
s
p
ec
ialis
t
in
ea
ch
cr
iter
io
n
will
s
h
o
w
th
eir
ap
p
r
o
v
al
to
th
ese
cr
iter
ia:
r
ea
lis
m
,
in
teg
r
atio
n
,
a
d
ap
tab
ilit
y
,
tec
h
n
o
lo
g
y
,
in
n
o
v
atio
n
,
f
u
n
cti
o
n
ality
an
d
u
s
ab
ilit
y
.
T
h
e
s
ev
en
e
x
p
er
ts
m
u
s
t
co
n
s
id
er
th
e
ap
p
r
o
v
al
o
f
t
h
ese
ac
ce
p
ta
n
ce
lev
els
0
%
to
4
9
%
ar
e
co
n
s
id
er
ed
v
e
r
y
b
asic,
5
0
%
to
7
9
%
ar
e
c
o
n
s
id
er
ed
im
p
r
o
v
a
b
le
an
d
8
0
%
to
1
0
0
%
ar
e
co
n
s
id
er
ed
to
b
e
a
v
er
y
e
f
f
icien
t
s
o
f
twar
e
f
o
r
th
e
u
s
e
o
f
th
e
cu
s
to
m
er
.
T
h
e
s
ev
en
ex
p
e
r
ts
g
iv
e
th
eir
p
o
in
t
o
f
v
iew
v
alid
atin
g
th
e
e
-
co
m
m
er
ce
g
iv
i
n
g
as
a
r
esu
lt
in
ea
ch
cr
iter
io
n
s
h
o
win
g
a
h
ig
h
lev
el
in
e
ac
h
ac
ce
p
ta
n
ce
cr
iter
ia:
r
ea
lis
m
with
a
to
tal
o
f
9
2
%,
i
n
teg
r
atio
n
wit
h
a
lev
el
o
f
9
2
%,
ad
ap
tab
ilit
y
with
a
lev
el
o
f
9
1
%,
tech
n
o
lo
g
y
with
a
le
v
e
l
o
f
9
3
%,
in
n
o
v
atio
n
with
a
to
tal
lev
el
o
f
9
1
%,
f
u
n
ctio
n
ality
with
a
to
tal
lev
e
l
o
f
9
5
%,
u
s
ab
ilit
y
with
a
to
ta
l
lev
el
o
f
9
4
%
an
d
as
a
to
tal
r
esu
lt
o
f
all
cr
iter
ia
with
9
3
% b
ein
g
a
n
ad
e
q
u
ate
a
p
p
licatio
n
f
o
r
th
e
u
s
er
to
b
e
s
a
tis
f
ied
with
its
u
s
e
as in
d
icate
d
in
T
ab
le
2
.
T
ab
le
2
.
R
esu
lts
o
f
th
e
ev
alu
at
io
n
V
a
l
i
d
a
t
i
o
n
E1
E2
E3
E4
R
e
a
l
i
sm
8
7
%
9
7
%
9
5
%
9
4
%
I
n
t
e
g
r
a
t
i
o
n
9
5
%
8
8
%
9
7
%
9
6
%
A
d
a
p
t
a
b
i
l
i
t
y
8
1
%
8
7
%
9
2
%
9
6
%
Te
c
h
n
o
l
o
g
y
9
7
%
9
5
%
9
4
%
9
6
%
I
n
n
o
v
a
t
i
o
n
8
7
%
9
4
%
9
2
%
8
7
%
F
u
n
c
t
i
o
n
a
l
i
t
y
8
9
%
9
9
%
9
2
%
9
5
%
U
sab
i
l
i
t
y
8
9
%
9
9
%
9
2
%
9
6
%
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
5
2
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
38
,
No
.
3
,
J
u
n
e
20
25
:
20
79
-
20
89
2086
4
.
2
.
Sa
les re
s
ults wit
h
dig
it
a
l so
cia
l m
edia
ma
rk
e
t
ing
T
h
e
r
esu
lts
p
r
esen
te
d
s
h
o
w
th
e
p
er
f
o
r
m
an
ce
o
f
th
e
f
o
u
r
ca
m
p
aig
n
s
estab
lis
h
ed
th
r
o
u
g
h
t
h
e
Face
b
o
o
k
Ad
s
p
latf
o
r
m
.
T
h
ese
r
esu
lts
r
ev
ea
l
th
at
a
to
tal
o
f
3
2
0
m
ess
ag
es
wer
e
s
h
o
wn
to
in
ter
ested
u
s
er
s
,
with
a
to
tal
r
ea
ch
o
f
1
5
,
3
5
5
v
iews.
T
h
e
to
tal
in
v
estme
n
t
f
o
r
th
ese
ca
m
p
aig
n
s
was
1
7
4
.
0
4
Per
u
v
ian
s
o
les,
an
d
th
e
r
esu
lts
o
b
tain
ed
r
ef
lect
a
g
o
o
d
p
er
f
o
r
m
an
ce
in
ter
m
s
o
f
p
r
o
d
u
ct
ad
v
er
tis
in
g
an
d
b
r
a
n
d
r
ec
o
g
n
it
io
n
,
as
d
etailed
in
T
ab
le
3
.
T
h
is
in
f
o
r
m
atio
n
p
r
o
v
id
es
a
clea
r
p
ictu
r
e
o
f
t
h
e
im
p
ac
t
a
n
d
e
f
f
ec
tiv
en
ess
o
f
Face
b
o
o
k
Ad
s
ca
m
p
aig
n
s
in
p
r
o
m
o
tin
g
p
r
o
d
u
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4
7
5
2
Op
timiz
a
tio
n
o
f sa
les b
y
a
p
p
l
yin
g
e
-
co
mme
r
ce
a
n
d
d
ig
ita
l
… (
Mis
a
el
La
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-
A
ma
d
o
)
2087
5.
DIS
CU
SS
I
O
N
S
T
h
is
wo
r
k
m
ee
ts
th
e
o
b
jectiv
e
o
f
m
a
k
in
g
a
n
e
-
c
o
m
m
er
ce
an
d
d
ig
ital
m
ar
k
etin
g
t
o
im
p
r
o
v
e
s
ales
also
th
is
au
th
o
r
[
1
8
]
,
in
d
icate
s
th
e
s
im
ilar
d
ev
elo
p
m
e
n
t
o
f
e
-
co
m
m
er
ce
b
y
ap
p
l
y
in
g
th
e
elec
tr
o
n
ic
p
ay
m
e
n
t
s
y
s
tem
s
o
th
at
th
e
u
s
er
ca
n
v
e
r
if
y
t
h
e
ir
p
u
r
c
h
ases
s
af
ely
.
As
also
th
e
d
ig
ital
m
ar
k
etin
g
t
h
at
co
m
es
to
b
e
a
s
tr
ateg
ic
p
ar
t
to
b
o
o
s
t
s
ales
an
d
b
r
an
d
o
f
th
e
co
m
p
an
y
th
at
s
h
o
ws
a
s
im
ilar
ity
with
Ma
n
s
u
r
et
a
l.
[
1
9
]
,
th
at
in
d
icate
s
u
s
th
e
im
p
lem
e
n
tatio
n
o
f
d
ig
ital
m
ar
k
etin
g
with
th
e
h
el
p
o
f
s
o
cial
n
etwo
r
k
s
o
f
Face
b
o
o
k
A
d
s
in
d
icatin
g
a
lar
g
e
in
cr
ea
s
e
in
s
ales h
av
in
g
clea
r
tar
g
et
au
d
ien
ce
to
g
et
to
m
a
k
e
th
eir
s
ales.
Fin
ally
,
th
e
m
eth
o
d
o
lo
g
y
p
lay
s
a
v
er
y
im
p
o
r
tan
t
r
o
le
to
estab
lis
h
th
is
wo
r
k
in
itiated
a
s
im
ilar
ity
with
Vaz
q
u
ez
et
a
l.
[
1
7
]
,
th
at
in
d
icate
s
u
s
th
e
p
r
o
j
e
c
t
m
a
n
a
g
e
m
e
n
t
a
n
d
a
c
t
i
v
it
i
e
s
t
o
a
c
h
i
e
v
e
t
h
e
s
o
f
t
w
a
r
e
d
ev
e
l
o
p
m
e
n
t
a
c
c
o
r
d
i
n
g
t
o
p
l
a
n
.
T
h
e
s
e
a
u
t
h
o
r
s
s
h
o
w
u
s
t
h
e
g
r
e
a
t
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m
p
o
r
ta
n
c
e
c
o
i
n
c
i
d
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n
g
w
i
t
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o
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j
e
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wi
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r
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c
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a
k
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n
g
o
n
l
i
n
e
p
u
r
c
h
a
s
e
s
.
6.
CO
NCLU
SI
O
NS A
ND
F
UT
URE WO
RD
T
h
is
s
y
s
tem
f
u
lf
ills
its
o
b
ject
iv
e
in
m
ak
in
g
an
e
-
co
m
m
e
r
c
e
an
d
d
ig
ital
m
a
r
k
etin
g
p
lan
with
s
o
cial
n
etwo
r
k
s
,
im
p
r
o
v
in
g
s
ales
co
n
s
id
er
ab
ly
.
T
h
e
p
r
o
ject
was
ca
r
r
ied
o
u
t
with
th
e
s
cr
u
m
m
eth
o
d
o
lo
g
y
f
u
lf
ills
th
e
r
o
les
an
d
s
tr
u
ctu
r
e
o
f
th
e
m
eth
o
d
o
lo
g
y
s
h
o
win
g
a
f
u
n
ctio
n
al
p
r
o
ject
at
th
e
en
d
o
f
ea
ch
esta
b
lis
h
ed
s
p
r
in
t.
T
h
e
lim
itatio
n
s
we
h
ad
in
th
e
p
r
o
j
ec
t
was
th
e
lack
o
f
ex
p
er
ien
ce
to
p
er
f
o
r
m
th
is
m
eth
o
d
o
lo
g
y
,
alth
o
u
g
h
it
is
tr
u
e
th
at
th
is
m
eth
o
d
o
l
o
g
y
m
u
s
t
c
o
m
p
ly
with
its
p
h
ases
s
tr
ictly
to
av
o
id
d
elay
s
an
d
m
ee
t
th
e
esti
m
ated
tim
e
f
o
r
ea
ch
s
p
r
in
t.
T
h
e
f
u
tu
r
e
w
o
r
k
to
b
e
d
o
n
e
in
th
is
ap
p
licatio
n
is
to
p
er
f
o
r
m
a
r
tific
ial
in
tellig
en
ce
to
b
e
a
b
le
to
m
ak
e
a
b
etter
p
u
r
ch
ase
an
d
d
e
tail
th
e
ty
p
e
o
f
f
ab
r
ic
u
s
ed
to
m
an
u
f
ac
tu
r
e
ea
ch
p
r
o
d
u
ct
an
d
it
is
also
n
ec
es
s
ar
y
to
im
p
lem
en
t a
u
g
m
en
ted
r
ea
lity
to
s
atis
f
y
th
e
u
s
er
with
th
e
te
ch
n
o
lo
g
y
.
ACK
NO
WL
E
DG
E
M
E
NT
S
T
h
is
wo
r
k
h
as
b
ee
n
p
o
s
s
ib
le
th
an
k
s
to
th
e
s
p
o
n
s
o
r
s
h
ip
o
f
th
e
Un
iv
er
s
id
ad
d
e
C
ien
cias
y
Hu
m
an
id
ad
es
an
d
its
R
esear
c
h
Dep
ar
tm
en
t,
wh
o
s
e
s
u
p
p
o
r
t
h
as
b
ee
n
f
u
n
d
am
en
tal
f
o
r
its
d
ev
elo
p
m
en
t.
W
e
also
ex
p
r
ess
o
u
r
s
in
ce
r
e
g
r
a
titu
d
e
to
Dr
.
L
ab
e
r
ian
o
An
d
r
ad
e
Ar
en
as
f
o
r
h
is
v
alu
a
b
le
s
u
g
g
esti
o
n
s
an
d
g
u
id
an
ce
,
wh
ich
h
a
v
e
co
n
tr
ib
u
ted
s
ig
n
if
ican
tly
to
th
e
im
p
r
o
v
em
en
t o
f
th
is
ar
ticle.
F
UNDING
I
NF
O
R
M
A
T
I
O
N
Au
th
o
r
s
s
tate
n
o
f
u
n
d
in
g
in
v
o
lv
ed
.
AUTHO
R
CO
NT
RI
B
UT
I
O
NS ST
A
T
E
M
E
N
T
T
h
e
p
ar
ticip
an
ts
'
s
tatem
en
t
is
p
r
esen
ted
in
o
r
d
er
t
o
p
r
o
v
id
e
a
clea
r
an
d
d
etailed
v
iew
o
f
t
h
e
au
th
o
r
s
'
p
er
f
o
r
m
an
ce
i
n
th
e
p
r
e
p
ar
atio
n
o
f
th
e
ar
ticle.
T
h
is
s
tatem
en
t
allo
ws
th
e
ev
al
u
atio
n
o
f
th
e
c
o
n
tr
ib
u
tio
n
o
f
ea
c
h
au
th
o
r
in
th
e
d
if
f
er
en
t
s
tag
es
o
f
th
e
p
r
o
ce
s
s
,
f
r
o
m
co
n
ce
p
tu
aliza
tio
n
an
d
d
r
a
f
tin
g
to
r
e
v
is
io
n
a
n
d
v
alid
atio
n
o
f
th
e
co
n
ten
t.
I
t
also
p
r
o
v
id
es
t
r
an
s
p
ar
en
cy
ab
o
u
t
th
e
r
o
le
p
l
ay
ed
b
y
ea
ch
p
ar
ticip
an
t,
g
u
a
r
an
teein
g
ad
e
q
u
ate
r
ec
o
g
n
itio
n
o
f
th
eir
wo
r
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J
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Sci
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Vo
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38
,
No
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3
,
J
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20
25
:
20
79
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20
89
2088
E
T
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CAL AP
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DATA AV
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,
[
Misael
L
az
o
Am
ad
o
]
.
RE
F
E
R
E
NC
E
S
[
1
]
H
.
A
l
z
o
u
b
i
,
M
.
A
l
s
h
u
r
i
d
e
h
,
B
.
A
.
K
u
r
d
i
,
K
.
A
l
h
y
a
s
a
t
,
a
n
d
T.
G
h
a
z
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l
,
“
T
h
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e
f
f
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a
n
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:
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v
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a
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y
,
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e
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o
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.
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.
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.
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.
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.
[
2
]
C
.
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i
u
,
“
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me
n
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8
.
[
3
]
J.
A
ma
n
,
J.
A
b
b
a
s,
G
.
S
h
i
,
N
.
U
.
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:
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c
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[
4
]
N
.
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.
Ja
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.
[
5
]
L.
V
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n
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a
-
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n
a
´
n
d
e
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.
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E.
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ı
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-
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,
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n
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C
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1
9
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s
u
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a
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b
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c
o
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su
m
p
t
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,
a
n
d
s
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b
i
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y
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m
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c
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s,
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u
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u
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.
[
6
]
M
.
R
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y
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a
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C
a
st
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l
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o
,
A
.
S
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n
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.
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a
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d
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.
C
.
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,
“
S
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a
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C
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9
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mes
:
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l
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c
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g
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v
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a
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y
f
u
z
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y
k
n
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w
l
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d
g
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,
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a
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s
,
v
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1
0
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n
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p
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3
3
9
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/
mat
h
1
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1
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2
3
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.
[
7
]
E.
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G
a
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´
ı
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-
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o
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s,
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d
J.
C
.
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o
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o
,
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d
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[
8
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A
.
R
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,
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9
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