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[
5
]
a
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d
Ku
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d
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et
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l
.
[
7
]
u
til
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PS
tec
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H
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1
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[
8
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[
9
]
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3
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[
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[
1
2
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m
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[
1
3
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[
1
4
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d
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s
y
s
tem
s
p
r
o
v
id
e
o
n
l
y
b
asic
d
ata
an
d
f
ail
to
o
f
f
er
u
s
ef
u
l,
ex
p
o
r
tab
le
r
e
p
o
r
ts
f
o
r
an
aly
s
is
.
T
h
e
p
r
o
p
o
s
ed
s
y
s
tem
ad
d
r
ess
es
th
e
s
e
is
s
u
es
with
d
y
n
am
ic
g
eo
f
en
ce
s
,
a
d
well
-
tim
e
ch
ec
k
,
cr
o
s
s
-
p
latf
o
r
m
ac
ce
s
s
,
an
d
ex
p
o
r
tab
le
E
x
ce
l
r
ep
o
r
ts
.
T
h
is
s
tu
d
y
p
r
o
p
o
s
es
a
d
y
n
am
ic
g
eo
l
o
ca
tio
n
-
b
ased
atten
d
an
ce
m
an
ag
e
m
en
t
s
y
s
tem
th
at
v
er
i
f
ies
s
tu
d
en
t
p
r
esen
ce
in
r
ea
l
tim
e
an
d
en
s
u
r
es
th
ey
r
em
ain
with
in
th
e
lectu
r
er
-
d
ef
in
ed
r
a
d
iu
s
f
o
r
at
least
8
0
%
o
f
th
e
class
d
u
r
atio
n
b
ef
o
r
e
atten
d
an
c
e
is
co
n
f
ir
m
ed
.
Dev
elo
p
ed
u
s
in
g
Flu
tter
f
o
r
cr
o
s
s
-
p
latf
o
r
m
m
o
b
ile
ac
ce
s
s
an
d
No
d
e.
js
f
o
r
b
ac
k
en
d
s
er
v
ices,
th
e
s
y
s
tem
in
teg
r
ates
ad
ju
s
tab
le
g
eo
f
en
cin
g
,
r
o
le
-
b
ased
d
ash
b
o
ar
d
s
,
r
ea
l
-
tim
e
n
o
tific
atio
n
s
v
ia
Fire
b
ase,
an
d
ex
p
o
r
tab
le
atten
d
an
ce
r
e
p
o
r
ts
.
B
y
en
h
an
cin
g
ac
cu
r
ac
y
,
ad
ap
tab
ilit
y
,
an
d
tr
a
n
s
p
ar
en
cy
,
th
is
s
y
s
tem
o
f
f
er
s
a
co
s
t
-
ef
f
ec
tiv
e,
s
ca
lab
le
s
o
lu
tio
n
to
i
m
p
r
o
v
e
atten
d
an
ce
m
a
n
ag
em
en
t
an
d
s
u
p
p
o
r
t
th
e
d
ig
ital
tr
an
s
f
o
r
m
atio
n
o
f
h
ig
h
er
ed
u
ca
tio
n
.
T
h
is
s
tu
d
y
aim
s
to
d
esig
n
a
n
d
im
p
lem
en
t
a
g
eo
lo
ca
tio
n
-
b
ased
s
tu
d
en
t
atten
d
an
ce
m
a
n
ag
em
en
t
s
y
s
tem
.
T
h
e
s
p
ec
if
ic
o
b
jecti
v
es
ar
e
to
:
d
esig
n
a
u
s
er
-
f
r
ien
d
ly
m
o
b
ile
in
ter
f
a
ce
u
s
in
g
Fig
m
a
an
d
d
ef
in
e
a
s
ca
lab
le
d
atab
ase
s
ch
em
a
with
Po
s
tg
r
eSQL
to
s
u
p
p
o
r
t
u
s
er
m
an
ag
em
e
n
t,
atten
d
an
ce
tr
ac
k
i
n
g
,
an
d
g
eo
lo
ca
tio
n
d
ata
s
to
r
a
g
e.
I
m
p
lem
en
t
th
e
m
o
b
ile
ap
p
licatio
n
f
r
o
n
t
-
en
d
u
s
in
g
Flu
tter
an
d
Dar
t,
a
n
d
d
ev
elo
p
a
s
ec
u
r
e
b
ac
k
en
d
s
y
s
tem
u
s
i
n
g
No
d
e.
js
to
h
an
d
le
u
s
er
au
th
en
ticatio
n
,
g
eo
l
o
ca
tio
n
v
al
id
atio
n
,
atten
d
an
ce
s
ess
io
n
co
n
tr
o
l,
an
d
co
m
m
u
n
icatio
n
with
th
e
d
atab
ase.
T
est
th
e
s
y
s
tem
th
r
o
u
g
h
s
im
u
la
tio
n
s
o
f
r
ea
l
-
wo
r
ld
ac
ad
em
ic
s
ce
n
ar
io
s
to
ev
alu
a
te
g
eo
lo
ca
tio
n
ac
cu
r
ac
y
,
s
ess
io
n
tr
ac
k
in
g
r
elia
b
ilit
y
,
an
d
th
e
ef
f
ec
tiv
e
n
ess
o
f
p
r
o
x
y
atten
d
an
ce
p
r
ev
e
n
tio
n
.
E
v
alu
ate
th
e
s
y
s
tem
’
s
u
s
ab
ilit
y
,
p
er
f
o
r
m
an
ce
,
an
d
e
f
f
ec
tiv
e
n
ess
th
r
o
u
g
h
u
s
er
s
’
f
ee
d
b
ac
k
,
f
u
n
ctio
n
al
test
in
g
,
a
n
d
an
aly
s
is
o
f
atten
d
an
ce
d
ata
ac
cu
r
ac
y
an
d
r
e
p
o
r
tin
g
ca
p
ab
i
liti
es.
2.
M
E
T
H
O
D
T
h
e
s
o
f
twar
e
d
e
v
el
o
p
m
e
n
t
life
cy
cle
(
SDLC)
m
o
d
el
e
m
p
lo
y
ed
f
o
r
th
is
s
tu
d
y
is
th
e
Ag
ile
m
eth
o
d
o
l
o
g
y
,
s
p
ec
if
ically
a
n
iter
ativ
e
ap
p
r
o
ac
h
.
Ag
ile
was
ch
o
s
en
d
u
e
to
its
f
lex
ib
ilit
y
,
r
esp
o
n
s
iv
en
ess
to
Evaluation Warning : The document was created with Spire.PDF for Python.
C
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m
p
u
t Sci
I
n
f
T
ec
h
n
o
l
I
SS
N:
2722
-
3
2
2
1
A
d
yn
a
mic
g
e
o
fen
cin
g
a
n
d
d
w
ell
-
time
va
lid
a
tio
n
s
ystem
fo
r
s
ec
u
r
e
…
(
Mich
a
el
F
a
vo
u
r
E
d
a
fea
jir
o
ke
)
161
ch
an
g
es,
a
n
d
a
b
ilit
y
to
p
r
o
d
u
ce
f
u
n
ctio
n
al
p
r
o
to
ty
p
es
ea
r
ly
in
th
e
d
e
v
elo
p
m
e
n
t
cy
cle.
A
cc
o
r
d
in
g
to
Sh
ar
m
a
an
d
Pan
d
e
y
[
1
5
]
,
Ag
ile
m
eth
o
d
o
lo
g
y
en
h
an
ce
s
cu
s
to
m
er
s
atis
f
ac
tio
n
th
r
o
u
g
h
co
n
tin
u
o
u
s
d
eliv
er
y
o
f
v
alu
a
b
le
s
o
f
twar
e
an
d
en
c
o
u
r
a
g
es
ad
ap
tiv
e
p
la
n
n
in
g
,
ev
o
lu
tio
n
a
r
y
d
e
v
elo
p
m
e
n
t,
a
n
d
ea
r
ly
d
eliv
er
y
.
T
h
is
was
esp
ec
ially
r
ele
v
an
t
in
b
u
ild
in
g
a
s
y
s
tem
th
at
r
eq
u
ir
ed
o
n
g
o
in
g
u
s
er
f
ee
d
b
ac
k
f
r
o
m
s
tu
d
en
ts
an
d
ed
u
ca
to
r
s
d
u
r
in
g
d
ev
elo
p
m
en
t a
n
d
test
in
g
p
h
ases
.
T
h
e
p
r
o
p
o
s
ed
atten
d
a
n
ce
m
an
ag
em
en
t
s
y
s
tem
was
c
o
n
ce
p
t
u
alize
d
as
a
g
eo
l
o
ca
tio
n
-
b
ase
d
p
latf
o
r
m
d
esig
n
ed
t
o
im
p
r
o
v
e
atten
d
a
n
ce
ac
c
u
r
ac
y
a
n
d
r
ed
u
ce
p
r
o
x
y
atten
d
an
ce
.
T
h
e
s
y
s
tem
ar
c
h
i
tectu
r
e
co
n
s
is
ts
o
f
two
m
ajo
r
co
m
p
o
n
en
ts
:
th
e
f
r
o
n
ten
d
(
clien
t
-
s
id
e)
a
n
d
th
e
b
ac
k
en
d
(
s
er
v
er
-
s
id
e)
.
I
t
s
u
p
p
o
r
ts
th
r
ee
u
s
er
r
o
les,
n
am
ely
s
tu
d
e
n
ts
,
lectu
r
er
s
,
a
n
d
ad
m
in
is
tr
ato
r
s
,
ea
ch
h
av
in
g
d
if
f
er
en
t
ac
ce
s
s
p
r
iv
ileg
es
an
d
in
ter
ac
tio
n
f
lo
ws.
C
o
r
e
d
esig
n
co
n
s
id
er
atio
n
s
in
clu
d
ed
r
esp
o
n
s
iv
e
m
o
b
ile
u
s
er
in
ter
f
ac
e
(
UI
)
,
s
ec
u
r
e
b
ac
k
e
n
d
p
r
o
ce
s
s
in
g
,
r
ea
l
-
tim
e
g
eo
lo
ca
tio
n
v
alid
atio
n
,
a
n
d
r
o
le
-
b
ased
ac
ce
s
s
m
an
ag
e
m
en
t.
T
o
ac
tu
alize
th
e
o
b
jectiv
es
o
f
th
is
s
tu
d
y
,
th
e
UI
was
d
esig
n
ed
u
s
in
g
Fig
m
a,
in
c
o
r
p
o
r
ati
n
g
wir
ef
r
am
es,
n
av
ig
atio
n
f
lo
w
s
,
an
d
in
ter
ac
tiv
e
p
r
o
to
ty
p
e
s
.
T
h
e
d
esig
n
p
r
o
ce
s
s
co
n
s
id
er
ed
r
o
le
-
s
p
ec
if
ic
in
ter
f
ac
es,
in
clu
d
in
g
d
ash
b
o
ar
d
s
,
atten
d
an
ce
m
o
n
ito
r
in
g
p
ag
es,
co
u
r
s
e
m
an
ag
e
m
en
t m
o
d
u
les,
an
d
g
eo
l
o
ca
tio
n
p
er
m
is
s
i
o
n
s
cr
ee
n
s
.
I
n
p
ar
alle
l,
a
Po
s
tg
r
eSQL
d
atab
ase
s
ch
em
a
was
d
ef
in
ed
to
s
u
p
p
o
r
t
s
ca
lab
le
s
to
r
ag
e
o
f
u
s
er
p
r
o
f
iles
,
co
u
r
s
e
in
f
o
r
m
at
io
n
,
atten
d
an
ce
r
ec
o
r
d
s
,
s
ess
i
o
n
lo
g
s
,
an
d
g
eo
l
o
ca
tio
n
d
ata.
E
n
tity
r
elatio
n
s
h
ip
m
o
d
ellin
g
was e
m
p
lo
y
ed
to
en
s
u
r
e
d
ata
in
teg
r
ity
a
n
d
e
f
f
icien
t r
etr
iev
al
o
f
in
f
o
r
m
ati
o
n
.
T
h
e
f
r
o
n
ten
d
a
p
p
licatio
n
was
d
esig
n
ed
u
s
in
g
Flu
tter
a
n
d
D
ar
t,
en
ab
lin
g
cr
o
s
s
-
p
latf
o
r
m
d
ep
lo
y
m
en
t
ac
r
o
s
s
An
d
r
o
id
an
d
iOS
d
ev
ices
f
r
o
m
a
s
in
g
le
co
d
eb
ase.
T
h
e
f
r
o
n
ten
d
m
o
d
u
le
p
r
o
v
id
es
lo
ca
tio
n
p
er
m
is
s
io
n
r
eq
u
ests
,
atten
d
an
ce
s
tatu
s
m
o
n
ito
r
in
g
,
co
u
r
s
e
m
an
ag
em
en
t
in
ter
f
ac
es,
n
o
tific
atio
n
d
is
p
l
ay
s
,
d
o
wn
lo
ad
a
b
le
r
ep
o
r
ts
,
an
d
m
ap
-
b
ased
g
eo
f
en
ce
v
is
u
aliza
tio
n
.
C
r
o
s
s
-
p
latf
o
r
m
d
e
v
elo
p
m
e
n
t
was
ad
o
p
ted
to
im
p
r
o
v
e
ac
ce
s
s
ib
ilit
y
an
d
r
ed
u
ce
m
ain
ten
an
ce
co
s
ts
wh
ile
en
s
u
r
in
g
co
n
s
is
ten
t
u
s
er
ex
p
er
ie
n
ce
(
UX
)
ac
r
o
s
s
d
ev
ices
[
1
4
]
,
[
1
6
]
,
[
1
7
]
.
T
h
e
b
ac
k
e
n
d
s
y
s
tem
was
d
esi
g
n
ed
u
s
in
g
No
d
e.
js
an
d
th
e
F
asti
f
y
f
r
am
ewo
r
k
to
m
an
ag
e
a
p
p
licatio
n
lo
g
ic
an
d
co
m
m
u
n
icatio
n
b
et
wee
n
s
y
s
tem
co
m
p
o
n
en
ts
.
R
E
STf
u
l
API
s
f
ac
ilit
a
te
co
m
m
u
n
icatio
n
b
etwe
en
m
o
b
ile
clien
ts
an
d
s
er
v
er
r
eso
u
r
ce
s
.
T
h
e
b
ac
k
e
n
d
a
r
ch
itectu
r
e
co
m
p
r
is
es
s
ev
er
al
f
u
n
ctio
n
al
m
o
d
u
les:
i
)
u
s
er
au
th
en
ticatio
n
:
im
p
lem
en
ted
u
s
in
g
J
SON
W
eb
T
o
k
en
(
J
W
T
)
with
an
au
th
o
r
izatio
n
f
r
am
ewo
r
k
,
OAu
th
2
,
p
r
o
v
id
i
n
g
s
ec
u
r
e
s
tateless
s
es
s
io
n
s
an
d
o
p
tio
n
al
in
teg
r
atio
n
with
ex
ter
n
al
id
e
n
tity
p
r
o
v
id
er
s
;
i
i
)
r
o
le
-
b
ased
ac
ce
s
s
co
n
tr
o
l
(
R
B
AC
)
:
m
id
d
lewa
r
e
-
en
f
o
r
ce
d
p
er
m
is
s
io
n
r
u
les
f
o
r
s
tu
d
e
n
ts
,
lectu
r
er
s
,
an
d
ad
m
i
n
is
tr
ato
r
s
;
iii
)
g
eo
lo
ca
tio
n
v
alid
atio
n
:
th
e
b
ac
k
en
d
c
o
m
p
a
r
es
GPS
co
o
r
d
in
ates
f
r
o
m
th
e
s
tu
d
en
t
a
n
d
lectu
r
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d
ev
ices
ag
ain
s
t
a
d
y
n
am
ic,
lectu
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er
-
d
e
f
in
ed
g
eo
f
e
n
ce
r
ad
iu
s
.
Dwe
ll
-
tim
e
v
alid
atio
n
en
s
u
r
ed
s
tu
d
en
ts
r
em
ain
ed
with
in
r
an
g
e
f
o
r
at
least
8
0
%
o
f
th
e
s
ess
io
n
.
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h
is
m
ec
h
an
i
s
m
was
m
o
tiv
ated
b
y
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ec
o
m
m
en
d
atio
n
s
f
r
o
m
C
h
au
h
an
et
a
l
.
[
6
]
,
wh
o
id
e
n
tifie
d
co
n
tin
u
o
u
s
p
r
ese
n
ce
v
alid
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a
m
ajo
r
lim
itatio
n
o
f
ex
is
tin
g
atten
d
an
ce
s
y
s
tem
s
;
iv
)
atten
d
an
ce
m
an
a
g
em
en
t
:
v
er
if
ie
d
atten
d
an
ce
d
at
a
was
s
to
r
ed
i
n
Po
s
tg
r
eSQL
a
n
d
m
a
d
e
ac
ce
s
s
ib
le
f
o
r
r
ev
iew
o
r
m
o
d
if
icatio
n
;
v
)
n
o
tific
atio
n
s
:
im
p
lem
en
ted
v
i
a
Fire
b
ase
C
lo
u
d
Me
s
s
ag
in
g
(
FC
M)
to
s
en
d
class
r
em
in
d
er
s
a
n
d
atten
d
an
ce
co
n
f
ir
m
atio
n
s
;
an
d
vi
)
API
s
ec
u
r
ity
m
id
d
lewa
r
e
v
alid
ated
J
W
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to
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e
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en
f
o
r
ce
d
ex
p
ir
y
c
h
ec
k
s
,
an
d
r
estricte
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e
n
d
p
o
in
t
ac
ce
s
s
.
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h
e
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o
o
l
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c
h
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a
r
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a
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in
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d
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g
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
7
2
2
-
3
2
2
1
C
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m
p
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t Sci
I
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T
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l
,
Vo
l.
7
,
No
.
2
,
J
u
ly
20
26
:
1
59
-
1
66
162
f
ix
ed
g
eo
f
e
n
ce
c
o
n
f
ig
u
r
atio
n
s
,
lim
ited
r
e
p
o
r
tin
g
f
u
n
ctio
n
ality
,
an
d
th
e
in
ab
ilit
y
to
v
er
if
y
co
n
tin
u
o
u
s
s
tu
d
en
t
p
r
esen
ce
th
r
o
u
g
h
o
u
t a
lectu
r
e
s
ess
io
n
[
6
]
,
[
1
1
]
.
Fig
u
r
e
1
illu
s
tr
ates
th
e
wo
r
k
f
lo
w
o
f
th
e
ex
is
tin
g
g
eo
lo
ca
tio
n
-
b
ased
atten
d
an
ce
s
y
s
tem
ad
ap
ted
f
r
o
m
C
h
au
h
an
et
a
l.
[
6
]
.
I
n
th
is
m
o
d
el,
atten
d
an
ce
is
r
ec
o
r
d
e
d
o
n
ce
a
s
tu
d
en
t
en
te
r
s
a
p
r
ed
e
f
in
ed
g
eo
f
en
ce
ar
ea
.
Alth
o
u
g
h
th
is
ap
p
r
o
ac
h
au
to
m
ates a
tten
d
an
ce
co
llectio
n
an
d
r
ed
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ce
s
m
an
u
al
e
f
f
o
r
t,
it p
r
im
ar
ily
v
er
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ies in
itial
p
r
esen
ce
an
d
d
o
es
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o
t
p
r
o
v
id
e
m
ec
h
an
is
m
s
f
o
r
c
o
n
f
ir
m
in
g
th
at
s
tu
d
en
ts
r
em
ain
with
in
t
h
e
d
esig
n
ated
a
r
ea
th
r
o
u
g
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o
u
t
th
e
lectu
r
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p
er
io
d
.
Similar
lim
itatio
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s
h
av
e
b
ee
n
r
ep
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ted
in
o
th
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e
o
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n
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b
ased
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d
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ce
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o
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at
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ely
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lely
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im
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with
o
u
t
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n
tin
u
o
u
s
m
o
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ito
r
in
g
[
1
]
,
[
1
1
]
,
[
1
8
]
,
[
1
9
]
.
C
o
n
s
eq
u
en
tly
,
s
tu
d
en
ts
m
a
y
b
e
m
ar
k
ed
p
r
esen
t d
esp
ite
leav
i
n
g
th
e
lectu
r
e
v
en
u
e
s
h
o
r
tly
a
f
ter
ch
ec
k
-
in
.
Fig
u
r
e
2
p
r
esen
ts
th
e
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r
k
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l
o
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th
e
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ed
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ce
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.
Un
lik
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s
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in
Fig
u
r
e
1
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e
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ed
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r
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lo
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n
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r
p
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r
ates
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n
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s
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n
m
o
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ito
r
in
g
a
n
d
d
well
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tim
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v
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n
.
Atten
d
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ce
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co
n
f
ir
m
ed
o
n
ly
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h
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n
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s
tu
d
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t
r
em
ain
s
with
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h
e
lectu
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d
ef
in
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d
g
eo
f
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o
r
at
least
8
0
%
o
f
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h
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s
ch
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u
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u
r
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.
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h
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is
m
d
ir
ec
tly
ad
d
r
ess
es
th
e
co
n
tin
u
o
u
s
p
r
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ce
v
e
r
if
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n
c
h
allen
g
e
h
ig
h
lig
h
ted
b
y
C
h
au
h
an
et
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l.
[
6
]
an
d
s
tr
en
g
th
en
s
p
r
o
tec
tio
n
ag
ain
s
t
p
r
o
x
y
atten
d
an
ce
p
r
ac
tices
[
2
0
]
.
T
h
e
wo
r
k
f
lo
w
b
eg
i
n
s
with
u
s
er
r
eg
is
tr
atio
n
an
d
au
th
en
tic
atio
n
,
f
o
llo
wed
b
y
g
eo
lo
ca
tio
n
v
er
if
icatio
n
,
d
well
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tim
e
m
o
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ito
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g
,
atten
d
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ce
c
o
n
f
ir
m
atio
n
,
an
d
r
ep
o
r
t g
e
n
er
a
tio
n
.
Fig
u
r
e
1
.
W
o
r
k
f
l
o
w
o
f
t
h
e
e
x
is
tin
g
s
y
s
te
m
(
C
h
au
h
an
et
a
l.
[
6
]
)
Fig
u
r
e
2
.
W
o
r
k
f
lo
w
o
f
th
e
p
r
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p
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An
o
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ig
n
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ican
t
im
p
r
o
v
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en
t
s
h
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wn
in
Fig
u
r
e
2
is
th
e
im
p
lem
en
tatio
n
o
f
d
y
n
am
ic
g
e
o
f
en
cin
g
.
W
h
ile
m
an
y
ex
is
tin
g
atten
d
an
ce
s
y
s
tem
s
r
ely
o
n
f
ix
ed
g
e
o
f
en
ce
b
o
u
n
d
a
r
ies
[
5
]
,
[
7
]
,
th
e
p
r
o
p
o
s
ed
s
y
s
tem
en
ab
les
lectu
r
er
s
to
ad
ju
s
t
th
e
atten
d
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ce
r
a
d
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s
ac
co
r
d
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g
to
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r
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ctio
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eq
u
ir
em
e
n
ts
.
T
h
is
f
lex
ib
i
lity
in
cr
ea
s
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ap
ta
b
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d
im
p
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v
es
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p
licab
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Evaluation Warning : The document was created with Spire.PDF for Python.
C
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I
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N:
2722
-
3
2
2
1
A
d
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o
fen
cin
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a
n
d
d
w
ell
-
time
va
lid
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tio
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Mich
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163
ac
ad
em
ic
en
v
ir
o
n
m
e
n
ts
.
T
h
e
ap
p
r
o
ac
h
also
alig
n
s
with
r
ec
o
m
m
e
n
d
atio
n
s
f
r
o
m
p
r
e
v
io
u
s
s
tu
d
ies
th
at
em
p
h
asized
th
e
n
ee
d
f
o
r
m
o
r
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f
lex
ib
le
an
d
s
ca
lab
le
atten
d
an
ce
m
an
ag
em
e
n
t sy
s
tem
s
[
1
3
]
,
[
14]
.
A
co
m
p
ar
ativ
e
an
aly
s
is
b
etwe
en
Fig
u
r
es
1
an
d
2
h
ig
h
lig
h
ts
th
e
m
ajo
r
co
n
tr
i
b
u
tio
n
s
o
f
th
e
p
r
o
p
o
s
ed
s
y
s
tem
.
First,
th
e
p
r
o
p
o
s
ed
m
o
d
el
in
tr
o
d
u
ce
s
d
well
-
tim
e
v
a
lid
atio
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r
ath
er
th
an
r
ely
in
g
s
o
lely
o
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e
n
tr
y
-
b
ased
atten
d
an
ce
co
n
f
ir
m
atio
n
.
Seco
n
d
,
it
r
ep
lace
s
s
tatic
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eo
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en
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s
with
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er
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ig
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ab
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o
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r
ies.
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d
,
it
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ce
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r
tin
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o
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ito
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ab
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ies
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at
ex
ten
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ey
o
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d
s
im
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atten
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o
r
d
in
g
.
T
h
ese
en
h
an
ce
m
en
t
s
co
llectiv
ely
im
p
r
o
v
e
atten
d
a
n
ce
r
eliab
ilit
y
,
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co
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i
lity
,
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d
a
d
m
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is
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icien
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.
C
o
m
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a
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with
ex
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g
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p
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o
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ch
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th
at
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o
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u
s
p
r
im
ar
ily
o
n
lo
ca
tio
n
v
e
r
if
icatio
n
[
4
]
,
[
5
]
,
th
e
p
r
o
p
o
s
ed
m
o
d
el
in
teg
r
ate
s
b
o
th
s
p
atial
an
d
tem
p
o
r
al
v
alid
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n
to
p
r
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v
id
e
a
m
o
r
e
r
o
b
u
s
t
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m
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ag
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t
m
ec
h
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is
m
.
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h
e
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p
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ed
s
y
s
tem
also
i
n
tr
o
d
u
ce
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e
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h
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ce
d
atten
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e
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ab
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Un
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at
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e
o
n
ly
atten
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n
ce
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ec
o
r
d
s
[
3
]
,
[
4
]
,
t
h
e
p
r
o
p
o
s
ed
d
esig
n
g
e
n
er
ates
ex
p
o
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ta
b
le
atten
d
an
ce
r
e
p
o
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ts
an
d
atten
d
an
ce
s
u
m
m
ar
ies
th
at
ca
n
a
s
s
is
t
lectu
r
er
s
in
m
o
n
ito
r
in
g
p
ar
ti
cip
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tr
en
d
s
an
d
id
en
tify
in
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tu
d
en
ts
with
lo
w
atten
d
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ce
r
ates.
T
h
ese
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ep
o
r
tin
g
f
u
n
ctio
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s
s
u
p
p
o
r
t
ev
id
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ce
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b
ased
ac
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is
io
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m
ak
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d
im
p
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ad
m
in
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ativ
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ef
f
icien
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.
Fu
r
th
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m
o
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,
s
tu
d
en
ts
ca
n
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o
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ito
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th
eir
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n
atten
d
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p
er
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en
tag
es th
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o
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g
h
th
e
d
ash
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o
ar
d
,
th
er
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y
en
c
o
u
r
ag
in
g
ac
co
u
n
tab
ilit
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an
d
en
g
ag
em
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Fig
u
r
e
3
p
r
esen
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th
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d
ev
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o
p
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UI
/UX
p
r
o
t
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ty
p
e
f
o
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th
e
ap
p
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'
s
in
tr
o
d
u
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cr
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T
h
e
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ter
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ce
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t
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th
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'
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s
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d
f
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ctio
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ality
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p
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T
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p
h
asizes
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im
p
licity
,
ac
ce
s
s
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ilit
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d
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ig
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.
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r
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atin
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n
m
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ile
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in
cip
les
th
r
o
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g
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Fig
m
a
p
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,
th
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ter
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k
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to
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en
g
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g
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n
d
f
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o
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o
n
g
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o
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s
tu
d
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d
lectu
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r
s
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Fig
u
r
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4
illu
s
tr
ates
th
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th
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n
ticatio
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d
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ash
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o
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ter
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e
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T
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e
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ased
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ash
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r
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h
itectu
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p
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to
m
ized
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u
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alities
ac
co
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d
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to
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s
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r
esp
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s
ib
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Stu
d
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ar
e
p
r
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v
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d
with
atten
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m
o
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ito
r
in
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co
u
r
s
e
in
f
o
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m
atio
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an
d
n
o
tific
ati
o
n
f
ea
tu
r
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wh
ile
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ar
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r
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ted
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itio
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p
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ea
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u
r
s
e
m
an
a
g
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en
t,
an
d
r
ep
o
r
t
g
en
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.
T
h
is
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o
le
-
s
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if
ic
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ter
f
ac
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im
p
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d
s
tr
ea
m
lin
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g
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s
er
in
ter
ac
tio
n
s
.
Fro
m
a
tech
n
o
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g
ical
p
er
s
p
ec
tiv
e,
th
e
in
te
g
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atio
n
o
f
Flu
tter
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d
Dar
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ep
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An
d
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iOS
d
ev
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a
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n
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f
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co
d
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ase.
T
h
i
s
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p
r
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h
is
co
n
s
is
ten
t
with
r
ec
o
m
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en
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s
ad
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m
ar
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h
o
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e
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ased
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o
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s
s
ib
ilit
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lab
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wh
ile
m
in
im
izin
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h
ar
d
war
e
d
ep
e
n
d
en
cies
[
1
3
]
,
[
1
4
]
.
Similar
ly
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ased
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ased
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r
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[
1
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,
[
6
]
,
[
1
1
]
.
T
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e
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Fig
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UI
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ter
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ased
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
7
2
2
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3
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2
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C
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CO
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ased
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s
with
a
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b
u
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t
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v
alid
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eq
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ir
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to
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ely
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itig
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