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to
o
u
r
k
n
o
w
led
g
e
n
o
n
e
o
f
t
h
e
m
h
a
s
p
r
o
d
u
ce
d
an
ex
p
lo
itab
le
to
o
l
to
g
en
er
ate
d
e
co
n
ce
p
tu
al
m
o
d
el
o
f
r
elatio
n
al
d
atab
ase
(
R
DB
)
.
T
h
is
p
ap
er
ai
m
s
to
o
v
er
co
m
e
th
e
af
o
r
e
m
en
tio
n
ed
li
m
i
tatio
n
a
n
d
it
p
r
esen
t
s
o
u
r
ap
p
r
o
ac
h
f
o
r
d
ev
elo
p
in
g
a
n
E
clip
s
e
P
lu
g
-
i
n
b
ased
o
n
E
cli
p
s
e
P
r
o
j
ec
t
Mo
d
elin
g
f
o
r
th
e
au
to
m
at
ic
g
e
n
er
atio
n
o
f
a
co
n
ce
p
tu
al
m
o
d
el
o
f
a
R
DB
f
r
o
m
a
n
o
n
to
lo
g
y
a
n
d
it
s
i
m
p
le
m
e
n
tatio
n
w
i
th
i
n
a
r
elatio
n
al
d
atab
ase
m
a
n
ag
e
m
e
n
t
s
y
s
te
m
(
R
DB
MS
)
.
Ou
r
ap
p
r
o
ac
h
ca
n
p
r
o
d
u
ce
m
o
r
e
ac
cu
r
ate
an
d
f
le
x
ib
le
r
esu
lt
s
b
y
p
r
o
m
o
ti
n
g
th
e
ad
ap
tatio
n
an
d
cu
s
to
m
izatio
n
o
f
t
h
e
g
en
er
ated
m
o
d
el
at
t
h
e
co
n
ce
p
tu
al
le
v
el.
T
h
e
f
lo
w
o
f
t
h
is
p
ap
er
is
o
r
g
a
n
ized
as
f
o
llo
w
:
s
ec
t
io
n
2
p
r
esen
t
s
t
h
e
m
o
d
el
d
r
iv
e
n
e
n
g
i
n
e
er
in
g
an
d
E
lip
s
e
m
o
d
elin
g
p
r
o
j
ec
t
r
elati
o
n
s
h
ip
,
s
ec
tio
n
3
d
ep
icts
o
u
r
p
r
o
p
o
s
ed
m
o
d
el
an
d
p
r
esen
ts
p
r
o
p
o
s
ed
P
lu
g
-
in
f
o
llo
w
ed
b
y
an
e
x
a
m
p
le
o
f
i
m
p
le
m
en
ta
tio
n
i
n
s
ec
tio
n
4
.
T
h
e
an
al
y
s
i
s
o
f
t
h
e
r
es
u
lt
s
ar
e
p
r
esen
ted
i
n
s
ec
t
io
n
5
b
ef
o
r
e
co
n
clu
d
in
g
i
n
s
ec
tio
n
6
.
2.
M
O
DE
L
DRI
VE
N
E
N
G
I
N
E
E
RIN
G
AN
D
E
C
L
I
P
S
E
M
O
DE
L
I
N
G
P
RO
J
E
C
T
T
h
e
co
n
ce
p
tio
n
o
f
to
o
ls
to
d
esig
n
o
th
er
to
o
ls
is
o
n
e
o
f
t
h
e
co
n
ce
p
ts
o
n
w
h
ich
t
h
e
ev
o
lu
tio
n
o
f
civ
ilizat
io
n
s
is
b
ased
.
L
i
k
e
b
lack
s
m
it
h
s
w
h
o
m
ak
e
to
o
ls
t
o
m
a
k
e
o
th
er
to
o
ls
,
co
m
p
u
te
r
s
cien
tis
t
s
d
ev
e
lo
p
s
o
f
t
w
ar
e
to
d
ev
e
lo
p
o
th
er
s
o
f
t
w
ar
e.
E
clip
s
e
ca
n
b
e
co
n
s
i
d
er
ed
as
a
w
o
r
k
s
h
o
p
f
o
r
th
e
p
r
o
d
u
ctio
n
o
f
n
e
w
s
o
f
t
w
ar
e
a
n
d
to
o
ls
,
s
i
n
ce
E
cl
i
p
s
e
is
co
m
p
o
s
ed
o
f
s
e
v
er
al
to
o
ls
t
h
at
w
e
ca
ll
"
P
lu
g
-
i
n
s
"
.
T
h
e
p
l
u
g
-
i
n
co
n
ce
p
t
allo
w
s
E
clip
s
e
to
b
e
s
ca
lab
le.
I
t
is
o
n
e
o
f
its
d
is
t
in
ct
iv
e
f
ea
t
u
r
es.
E
clip
s
e
is
a
f
o
r
g
e
f
o
r
s
o
f
t
w
ar
e
d
ev
elo
p
m
en
t.
L
i
k
e
th
e
h
a
m
m
er
,
an
v
i
l
an
d
f
o
r
g
i
n
g
b
ello
w
s
th
a
t
ar
e
t
h
e
s
tar
tin
g
to
o
ls
o
f
b
lack
s
m
it
h
s
,
a
s
o
f
t
w
ar
e
to
o
l
o
f
an
al
y
s
is
,
a
s
o
f
t
w
ar
e
to
o
l
o
f
d
esig
n
,
co
d
in
g
,
co
m
p
ilat
io
n
an
d
ex
ec
u
tio
n
ar
e
th
e
s
tar
t
in
g
m
ea
n
s
o
f
th
e
s
o
f
t
w
ar
e
g
e
n
i
u
s
e
s
.
2
.
1
.
E
clips
e
m
o
delin
g
f
ra
m
e
w
o
rk
(
E
M
F
)
E
MF
is
a
J
av
a
f
r
am
e
w
o
r
k
an
d
a
co
d
e
g
en
er
ato
r
f
o
r
b
u
ild
in
g
to
o
ls
an
d
ap
p
licatio
n
s
u
s
i
n
g
a
s
tr
u
ct
u
r
ed
m
o
d
el
ap
p
r
o
ac
h
.
Mo
r
eo
v
er
,
th
e
s
o
f
t
w
ar
e
ap
p
r
o
ac
h
r
ec
o
m
m
e
n
d
s
s
tar
ti
n
g
w
it
h
th
e
p
h
ase
s
r
elati
n
g
to
co
n
ce
p
tu
al
m
o
d
elin
g
.
T
h
is
Fr
a
m
e
w
o
r
k
co
n
cr
etize
s
th
e
p
er
ce
p
tio
n
o
f
t
h
e
i
m
p
le
m
e
n
tatio
n
o
f
a
s
et
o
f
to
o
ls
p
r
o
v
id
in
g
s
u
p
p
o
r
t
f
o
r
o
r
g
an
i
za
tio
n
an
d
s
tr
u
ct
u
r
in
g
t
h
e
d
ev
elo
p
m
e
n
t
o
f
s
o
f
t
w
ar
e
to
o
l
s
u
s
i
n
g
th
e
E
clip
s
e
p
latf
o
r
m
.
On
e
o
f
E
MF
's
g
o
als
is
to
f
r
ee
d
ev
elo
p
er
s
o
f
co
d
e
g
en
er
atio
n
an
d
f
o
cu
s
o
n
m
o
d
el
d
esig
n
.
T
h
e
f
u
n
d
a
m
en
ta
l
co
n
ce
p
t
s
o
f
th
i
s
Fra
m
e
w
o
r
k
ar
e:
m
etad
at
a,
co
d
e
g
en
er
atio
n
a
n
d
s
er
iali
za
tio
n
.
E
MF
is
a
n
i
m
p
le
m
en
ta
tio
n
a
n
d
ev
o
lu
t
io
n
o
f
th
e
s
ta
n
d
ar
d
MO
F
(
Me
ta
Ob
j
ec
t
Facilit
y
)
,
p
r
ec
is
el
y
v
er
s
io
n
2
.
0
o
f
th
e
MO
F
s
p
ec
if
icatio
n
.
T
h
er
ef
o
r
e,
E
MF
is
p
a
r
t
o
f
th
e
MD
A
ar
ch
itec
tu
r
e;
it
is
t
h
e
i
m
p
le
m
e
n
tatio
n
o
f
th
i
s
ar
ch
i
tectu
r
e
at
E
clip
s
e.
I
n
th
e
co
n
tex
t
o
f
E
M
F,
th
e
m
eta
m
o
d
el
is
n
a
m
ed
E
co
r
e.
T
h
r
o
u
g
h
E
MF,
E
clip
s
e
o
f
f
er
s
t
h
e
n
ec
es
s
ar
y
to
o
ls
to
ex
p
lo
it
t
h
e
ad
v
a
n
ta
g
es
o
f
f
er
ed
b
y
t
h
e
m
o
d
el
-
d
r
iv
en
s
o
f
t
w
ar
e
d
ev
elo
p
m
e
n
t
ap
p
r
o
ac
h
n
a
m
el
y
t
h
e
MD
A
.
E
MF
p
r
o
v
id
es t
h
e
m
eta
m
o
d
el
la
y
er
i
n
t
h
e
f
o
r
m
o
f
E
c
o
r
e
d
ef
in
i
n
g
t
h
e
la
n
g
u
a
g
e
n
ee
d
ed
f
o
r
m
o
d
elin
g
to
d
escr
ib
e
class
es,
attr
ib
u
te
s
,
d
a
ta
t
y
p
es,
an
d
r
elat
io
n
s
h
ip
s
.
E
co
r
e
is
ali
g
n
ed
w
it
h
OM
G
'
s
E
s
s
en
tia
l
Me
ta
-
Ob
j
ec
t
Facilit
y
[
1
4
]
w
h
ic
h
co
r
r
esp
o
n
d
s
to
lay
er
f
o
u
r
(
M3
)
at
th
e
le
v
el
o
f
OM
G
ar
c
h
itect
u
r
e.
2
.
2
.
G
ra
ph
ica
l
edit
ing
f
ra
m
ew
o
rk
(
G
E
F
)
T
h
e
GE
F
is
an
E
clip
s
e
p
r
o
j
e
ct
th
at
ai
m
s
to
d
ev
elo
p
t
h
e
t
o
o
ls
n
ee
d
ed
to
d
ev
elo
p
ap
p
li
ca
tio
n
s
a
n
d
to
o
ls
f
o
r
m
an
ip
u
lati
n
g
i
n
f
o
r
m
atio
n
in
a
g
r
ap
h
ical
f
o
r
m
.
I
n
d
ee
d
,
GE
F
m
a
k
es
it
p
o
s
s
ib
le
to
cr
ea
te
ap
p
licatio
n
s
an
d
to
o
ls
in
te
n
d
ed
f
o
r
th
e
m
a
n
ip
u
latio
n
o
f
t
h
e
o
b
j
ec
ts
an
d
th
e
in
ter
ac
tio
n
o
f
t
h
e
u
s
er
s
w
it
h
th
ese
o
b
j
ec
ts
,
s
u
c
h
as:
c
u
r
v
es,
g
r
ap
h
s
,
d
iag
r
a
m
s
,
etc.
T
h
is
f
r
a
m
e
w
o
r
k
is
b
a
s
ed
o
n
SW
T
(
Stan
d
ar
d
W
id
g
et
T
o
o
lk
it)
an
d
Dr
a
w
2
d
to
f
ac
ilit
ate
t
h
e
i
m
p
le
m
en
tati
o
n
o
f
g
r
ap
h
ic
ed
ito
r
s
.
T
h
e
d
e
v
elo
p
er
s
o
f
GE
F
h
av
e
ad
o
p
te
d
th
e
Mo
d
el
-
Vie
w
-
C
o
n
tr
o
ller
(
MV
C
)
ar
c
h
itect
u
r
e
w
h
o
s
e
co
m
p
o
s
itio
n
co
m
p
r
i
s
es
t
h
e
m
o
d
el,
th
e
v
ie
w
o
r
t
h
e
r
ep
r
esen
tat
io
n
.
Fo
llo
w
i
n
g
t
h
e
cr
ea
tio
n
o
r
m
o
d
if
icatio
n
o
f
a
n
ele
m
e
n
t a
t
t
h
e
l
ev
el
o
f
t
h
e
m
o
d
el,
t
h
e
co
n
tr
o
ller
th
at
co
r
r
esp
o
n
d
s
to
it
is
r
esp
o
n
s
ib
le
f
o
r
p
r
o
p
ag
atin
g
th
is
e
v
en
t
a
t
th
e
lev
el
o
f
th
e
v
is
u
al
r
ep
r
esen
tat
io
n
b
y
m
ak
in
g
t
h
e
ch
a
n
g
es
to
th
e
co
r
r
esp
o
n
d
in
g
v
is
u
al
o
b
j
ec
ts
.
T
h
is
p
r
o
ce
s
s
is
b
id
ir
ec
tio
n
al,
s
i
n
ce
th
e
c
h
a
n
g
e
s
t
h
at
th
e
v
is
u
al
o
b
j
ec
ts
u
n
d
er
g
o
co
r
r
esp
o
n
d
in
g
to
an
o
b
j
ec
t o
f
th
e
m
o
d
el,
f
o
llo
w
i
n
g
t
h
e
i
n
ter
ac
tiv
it
y
w
it
h
th
e
u
s
er
,
h
av
e
r
ep
er
cu
s
s
io
n
s
o
n
th
e
m
o
d
el
th
r
o
u
g
h
t
h
e
co
r
r
esp
o
n
d
in
g
co
n
tr
o
ller
.
I
n
f
ac
t,
th
e
m
o
d
el
co
n
tain
s
t
h
e
in
f
o
r
m
at
io
n
,
th
e
v
ie
w
d
is
p
la
y
s
t
h
e
in
f
o
r
m
atio
n
co
n
t
ain
ed
in
th
e
m
o
d
el,
an
d
th
e
co
n
tr
o
ller
co
o
r
d
in
ates
th
e
e
x
ch
an
g
e
s
b
et
w
ee
n
t
h
e
m
o
d
el
a
n
d
th
e
v
ie
w
.
Fi
g
u
r
e
1
i
llu
s
tr
ates its
i
n
ter
ac
tio
n
s
b
et
wee
n
th
e
d
i
f
f
er
e
n
t c
o
m
p
o
n
e
n
t
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
4
,
A
u
g
u
s
t
201
9
:
3
2
9
8
-
330
6
3300
Fig
u
r
e
1
.
GE
F M
VC
m
o
d
el
2
.
3
.
G
ra
ph
ica
l
m
o
deli
ng
f
ra
m
ew
o
r
k
(
G
M
F
)
T
h
e
o
b
j
ec
tiv
e
o
f
GM
F
is
to
p
r
o
v
id
e
a
g
e
n
er
ativ
e
b
r
id
g
e
b
et
w
ee
n
E
MF
a
n
d
GE
F
[
1
5
]
.
T
h
e
GM
F
s
u
b
-
p
r
o
j
ec
t
is
p
ar
t
o
f
th
e
E
cl
i
p
s
e
Mo
d
elin
g
P
r
o
j
ec
t
,
a
co
llectio
n
o
f
s
u
b
-
p
r
o
j
ec
ts
th
at
ar
e
p
ar
t
o
f
m
o
d
el
-
d
r
i
v
en
s
o
f
t
w
ar
e
d
ev
elo
p
m
e
n
t.
W
h
ile
E
MF
allo
w
s
t
h
e
m
o
d
elin
g
as
w
el
l
as
th
e
g
e
n
er
atio
n
o
f
th
e
co
d
e
f
r
o
m
t
h
e
p
r
o
d
u
ct
m
o
d
els
a
n
d
GE
F
allo
w
s
t
h
e
cr
ea
tio
n
o
f
t
h
e
g
r
ap
h
ical
i
n
ter
f
ac
e
s
f
o
r
p
u
b
lis
h
er
s
b
ased
o
n
m
o
d
els,
GM
F
allo
w
s
th
e
co
n
n
ec
tio
n
b
et
w
ee
n
th
e
s
e
t
w
o
u
n
iv
er
s
es
to
p
r
o
v
id
e
an
in
teg
r
ated
d
ev
elo
p
m
e
n
t
f
r
a
m
e
w
o
r
k
.
W
ith
GM
F,
th
e
tr
an
s
itio
n
f
r
o
m
th
e
m
o
d
el
to
a
g
r
ap
h
ic
ed
ito
r
is
s
y
s
te
m
ic
p
r
o
f
ilin
g
t
h
e
b
ea
u
t
y
o
f
th
e
b
en
e
f
it
s
b
r
o
u
g
h
t
b
y
t
h
e
MD
A
w
h
o
s
e
m
ai
n
ad
v
a
n
ta
g
e
is
t
h
e
co
n
tr
ib
u
tio
n
o
f
a
h
ig
h
-
le
v
el
o
f
ab
s
tr
ac
tio
n
.
T
h
u
s
,
r
el
y
i
n
g
o
n
E
MF
an
d
GE
F,
GM
F
o
f
f
er
s
a
d
ev
elo
p
m
e
n
t
e
n
v
ir
o
n
m
en
t
r
ich
g
r
ap
h
ical
ed
ito
r
s
b
ased
o
n
G
E
F
an
d
g
en
er
ated
f
r
o
m
a
m
o
d
el
ex
p
r
ess
ed
u
s
i
n
g
E
MF.
I
n
e
x
tr
e
m
e
l
y
s
i
m
p
l
if
ied
m
a
n
n
er
,
GM
F
m
ak
e
s
i
t
p
o
s
s
ib
le
to
p
r
o
d
u
ce
g
r
ap
h
ic
ed
ito
r
s
f
r
o
m
a
m
eta
m
o
d
el
e
x
p
r
ess
ed
u
s
in
g
E
MF
.
GM
F
b
r
in
g
s
to
g
et
h
er
th
r
ee
s
u
b
-
p
r
o
j
ec
ts
:
GM
F
R
u
n
t
i
m
e,
GM
F
T
o
o
lin
g
an
d
GM
F
No
t
atio
n
[
16
]
.
GM
F
R
u
n
ti
m
e
s
u
p
p
o
r
ts
b
r
id
g
in
g
b
et
w
ee
n
E
MF
a
n
d
GE
F
an
d
o
f
f
er
s
ap
p
licatio
n
s
er
v
ices
(
A
P
I
)
f
o
r
th
e
p
r
o
d
u
ctio
n
o
f
g
r
ap
h
ic
ed
ito
r
s
.
W
h
ile
GM
F
T
o
o
lin
g
p
la
y
s
t
h
e
r
o
le
o
f
in
ter
f
ac
i
n
g
b
et
w
ee
n
th
e
d
e
v
elo
p
er
an
d
th
e
GM
F
R
u
n
ti
m
e,
it
is
th
e
v
i
s
ib
le
p
ar
t
o
f
t
h
e
MD
A
i
ce
b
er
g
to
d
ef
in
e
th
e
g
r
ap
h
ic
ele
m
e
n
ts
,
d
ia
g
r
a
m
to
o
lin
g
an
d
th
e
ass
o
ciatio
n
b
et
w
ee
n
t
w
o
s
et
s
an
d
th
e
b
ase
d
o
m
ai
n
m
o
d
el.
As
p
ar
t
o
f
th
e
GM
F,
th
e
cr
ea
tio
n
o
f
a
g
r
ap
h
ic
ed
ito
r
i
s
g
u
id
ed
b
y
a
w
ell
-
d
e
f
in
ed
p
r
o
ce
s
s
f
r
a
m
ed
b
y
t
h
e
MD
A
ap
p
r
o
ac
h
.
T
h
is
p
r
o
ce
s
s
b
eg
in
s
w
i
t
h
th
e
cr
ea
tio
n
o
f
a
p
r
o
j
ec
t
u
n
d
er
ec
lip
s
e
an
d
en
d
s
w
it
h
th
e
g
en
er
atio
n
o
f
a
p
lu
g
-
i
n
f
o
r
a
g
r
ap
h
ic
ed
ito
r
w
h
ile
p
ass
in
g
t
h
r
o
u
g
h
i
n
ter
m
ed
iate
s
tep
s
,
in
t
h
i
s
ca
s
e
t
h
e
d
ev
elo
p
m
en
t
o
f
a
m
o
d
el
o
f
th
e
d
o
m
ai
n
,
th
e
d
ev
e
lo
p
m
en
t
o
f
a
g
r
ap
h
ic
d
ef
in
itio
n
,
t
h
e
d
ev
elo
p
m
e
n
t
o
f
a
to
o
l
d
ef
in
itio
n
,
th
e
d
ev
elo
p
m
e
n
t
o
f
a
m
ap
p
in
g
m
o
d
el
an
d
t
h
e
cr
ea
tio
n
o
f
a
g
e
n
er
atio
n
m
o
d
el
.
3.
T
O
WARD
S P
L
U
G
-
I
N
O
N
T
O
2
DB
T
h
e
co
n
ce
p
tu
al
lev
el
o
f
a
r
el
atio
n
al
d
atab
ase
is
r
ep
r
esen
te
d
b
y
t
h
e
E
n
t
it
y
-
R
elatio
n
m
o
d
el
w
h
o
s
e
co
m
p
o
s
i
tio
n
g
r
o
u
p
s
t
h
e
co
n
c
ep
t
s
:
en
ti
t
y
,
r
elatio
n
,
attr
ib
u
te
(
id
en
tifie
r
o
r
d
escr
ip
to
r
)
an
d
th
e
li
n
k
s
b
et
w
ee
n
en
titi
e
s
an
d
r
elatio
n
s
(
w
ith
ca
r
d
in
alitie
s
)
.
3
.
1
.
Arc
hit
e
ct
ure
T
h
e
On
to
2
D
B
P
lu
g
-
i
n
is
a
v
is
u
al
m
o
d
elin
g
e
n
v
ir
o
n
m
e
n
t
f
o
r
g
en
er
a
tin
g
a
co
n
ce
p
tu
a
l
m
o
d
el
o
f
a
R
DB
f
r
o
m
a
n
o
n
to
lo
g
y
.
O
n
to
2
DB
g
i
v
es
d
esi
g
n
er
s
t
h
e
ab
ilit
y
to
cu
s
to
m
ize
t
h
e
co
n
ce
p
tu
al
m
o
d
el
g
e
n
er
ated
b
y
in
ter
ac
ti
n
g
w
it
h
g
r
ap
h
ical
u
s
er
in
ter
f
ac
e
w
id
g
et
s
.
As
m
e
n
tio
n
ed
ab
o
v
e,
th
e
d
ev
elo
p
m
en
t
o
f
On
to
2
DB
is
b
ased
o
n
t
h
e
E
clip
s
e
p
latf
o
r
m
b
ec
au
s
e
o
f
t
h
e
ad
v
a
n
ta
g
es
m
e
n
tio
n
e
d
ab
o
v
e,
in
th
is
ca
s
e
i
ts
e
x
te
n
s
ib
ilit
y
an
d
t
h
e
w
id
e
r
an
g
e
o
f
to
o
ls
av
a
ilab
le
as
a
f
r
a
m
e
w
o
r
k
.
I
n
f
ac
t,
On
to
2
DB
is
i
m
p
le
m
e
n
ted
as
an
E
cli
p
s
e
p
lu
g
-
i
n
,
ad
d
in
g
ca
p
ab
ilit
ies
to
g
en
er
ate
an
d
v
is
u
alize
co
n
ce
p
tu
a
l
m
o
d
el
s
o
f
R
DB
s
f
r
o
m
o
n
to
lo
g
ie
s
a
n
d
m
a
n
ip
u
late
t
h
ese
m
o
d
el
s
u
s
i
n
g
g
r
ap
h
ical
u
s
er
in
ter
f
ac
e,
s
u
c
h
as
e
n
titi
e
s
,
r
elatio
n
s
h
ip
s
,
attr
ib
u
tes,
etc.
Fi
g
u
r
e
2
s
h
o
w
s
t
h
e
s
tack
i
n
g
r
elatio
n
s
h
ip
b
et
w
ee
n
On
to
2
DB
an
d
E
clip
s
e
in
a
la
y
er
ed
ar
ch
itectu
r
e.
I
n
d
ee
d
,
On
to
2
DB
is
b
ased
o
n
th
e
ex
p
lo
itatio
n
o
f
t
h
e
s
er
v
ice
s
o
f
f
er
ed
b
y
GM
F.
Fig
u
r
e
2
.
On
to
2
DB
an
d
E
clip
s
e
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I
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&
C
o
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p
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I
SS
N:
2088
-
8708
On
to
2
DB
:
to
w
a
r
d
s
a
n
ec
lip
s
e
p
lu
g
in
fo
r
a
u
to
ma
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a
ta
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(
Mo
r
a
d
Ha
jji
)
3301
On
to
2
DB
's
ar
ch
itect
u
r
e
is
ce
n
tr
ed
ar
o
u
n
d
a
co
r
e
th
at
c
o
o
r
d
in
ates
th
e
p
r
o
ce
s
s
o
f
d
esig
n
i
n
g
a
co
n
ce
p
tu
al
m
o
d
els
o
f
R
DB
f
r
o
m
a
n
o
n
to
lo
g
y
.
I
t
u
s
es
t
h
e
al
g
o
r
ith
m
c
h
o
s
e
n
b
y
t
h
e
u
s
er
to
p
r
o
d
u
ce
th
is
m
o
d
el
.
T
h
e
r
esu
lt
is
m
ad
e
a
v
ailab
le
t
o
th
e
d
esig
n
er
i
n
a
v
is
u
al
f
o
r
m
r
ep
r
esen
ti
n
g
t
h
is
co
n
ce
p
tu
a
l
m
o
d
el
o
f
R
DB
as
illu
s
tr
ated
in
Fi
g
u
r
e
3
.
Fig
u
r
e
3
.
On
to
2
DB
in
ter
n
al
ar
ch
itect
u
r
e
T
h
er
e
ar
e
tw
o
t
y
p
e
s
o
f
o
n
to
lo
g
y
r
elatio
n
al
co
u
p
li
n
g
m
et
h
o
d
s
d
ep
en
d
in
g
o
n
th
e
t
y
p
e
o
f
g
en
er
ated
s
ch
e
m
as.
T
h
e
f
ir
s
t
k
in
d
o
f
m
e
th
o
d
s
ai
m
s
to
d
esi
g
n
th
e
C
o
n
ce
p
tu
al
Data
Mo
d
el
(
C
DM
)
f
r
o
m
an
o
n
to
lo
g
y
a
s
m
en
t
io
n
ed
b
y
Y.
L
v
an
d
C
.
Xi
e
in
[
1
7
]
,
w
h
ile
t
h
e
s
ec
o
n
d
k
in
d
o
f
m
et
h
o
d
s
is
f
o
cu
s
ed
o
n
th
e
d
esig
n
o
f
L
o
g
ica
l
Data
Mo
d
el
(
L
DM
)
f
r
o
m
a
n
o
n
to
lo
g
y
a
s
s
tated
b
y
I
.
Ast
r
o
v
a,
N.
Ko
r
d
a
an
d
A
.
Kalj
in
[
8
]
.
I
n
th
e
f
ir
s
t
ca
s
e
,
th
e
g
en
er
ated
C
DM
w
il
l
b
e
tr
an
s
f
o
r
m
ed
i
n
to
a
L
DM
.
T
h
e
l
o
g
ic
m
o
d
el
i
s
t
h
en
tr
a
n
s
la
ted
in
to
a
p
h
y
s
ica
l
d
ata
m
o
d
el
(
P
DM
)
ac
co
r
d
in
g
to
t
h
e
ch
o
s
en
R
DB
MS.
T
h
e
p
h
y
s
ic
al
m
o
d
el
is
u
s
ed
to
g
e
n
er
ate
t
h
e
SQ
L
D
DL
(
Da
ta
Def
i
n
itio
n
L
a
n
g
u
a
g
e)
s
cr
ip
t
wh
o
s
e
ex
ec
u
tio
n
p
r
o
d
u
ce
s
th
e
p
h
y
s
ical
s
tr
u
ct
u
r
e
o
f
th
e
r
elatio
n
al
d
atab
ase
w
ith
in
th
e
R
DB
MS.
3
.
2
.
Sy
m
bo
l
s
T
h
e
s
y
m
b
o
ls
u
s
ed
an
d
t
h
eir
m
ea
n
in
g
s
f
o
r
m
o
d
elin
g
a
s
c
h
e
m
a
o
f
a
n
E
n
tit
y
-
R
e
latio
n
s
h
ip
co
n
ce
p
tu
al
m
o
d
el
ar
e
s
h
o
w
n
i
n
Fi
g
u
r
e
4
.
I
n
f
ac
t,
a
co
n
ce
p
tu
al
m
o
d
el
o
f
a
R
DB
in
clu
d
es
e
n
tit
ies
w
ith
at
tr
ib
u
tes,
r
elatio
n
s
h
ip
s
w
i
th
o
r
w
i
th
o
u
t
attr
ib
u
tes
in
ad
d
itio
n
to
li
n
k
s
b
et
w
ee
n
e
n
titi
e
s
a
n
d
r
elat
io
n
s
h
ip
s
,
a
n
d
lin
k
s
b
et
w
ee
n
attr
ib
u
tes
a
n
d
t
h
eir
e
n
tit
y
o
r
r
elatio
n
s
h
ip
.
A
n
en
tit
y
i
s
r
ep
r
esen
ted
b
y
a
r
ec
ta
n
g
l
e,
a
r
elatio
n
s
h
ip
i
s
r
ep
r
esen
ted
b
y
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ze
n
g
e
,
an
at
tr
ib
u
te
is
r
ep
r
esen
ted
b
y
a
r
o
u
n
d
ed
r
ec
tan
g
le,
an
attr
ib
u
te
f
o
r
m
i
n
g
p
ar
t
o
f
th
e
id
en
ti
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ier
o
f
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en
tit
y
i
s
r
ep
r
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en
ted
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y
a
r
o
u
n
d
ed
r
ec
tan
g
le
w
it
h
th
e
u
n
d
er
li
n
in
g
o
f
th
e
te
x
t
a
n
d
f
i
n
all
y
a
lin
k
b
et
w
ee
n
an
e
n
tit
y
an
d
a
r
elatio
n
b
y
a
lin
e
lab
eled
w
it
h
ca
r
d
in
alit
y
.
Fig
u
r
e
4
.
B
asic E
R
m
o
d
el
s
y
m
b
o
ls
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
4
,
A
u
g
u
s
t
201
9
:
3
2
9
8
-
330
6
3302
3
.
3
.
M
et
a
m
o
del
W
e
ad
v
o
ca
te
f
o
r
t
h
e
u
s
e
o
f
E
MF
to
d
ef
i
n
e
th
e
u
n
d
er
l
y
i
n
g
m
o
d
el.
As
i
llu
s
tr
ated
i
n
F
ig
u
r
e
5
,
w
e
u
s
e
th
e
E
co
r
e
g
r
ap
h
ical
ed
ito
r
in
o
r
d
er
to
s
p
ec
if
y
t
h
is
m
o
d
el.
W
e
co
n
s
id
er
t
h
at
a
co
n
ce
p
t
u
a
l
m
o
d
el
o
f
a
R
DB
is
co
m
p
o
s
ed
o
f
ele
m
en
t
s
a
n
d
lin
k
s
.
E
n
titi
e
s
,
r
elatio
n
s
h
ip
s
,
attr
ib
u
tes,
a
n
d
attr
ib
u
te
s
t
h
at
ar
e
p
ar
t
o
f
an
id
en
ti
f
ier
ar
e
ele
m
en
t
s
.
T
h
er
e
ar
e
t
w
o
ty
p
e
s
o
f
li
n
k
s
:
t
h
e
li
n
k
s
t
h
at
li
n
k
a
n
attr
ib
u
te
to
it
s
en
t
it
y
o
r
r
elatio
n
s
h
ip
,
an
d
th
e
lin
k
s
t
h
at
li
n
k
e
n
titi
e
s
an
d
r
ela
tio
n
s
h
ip
s
.
T
o
p
r
o
g
r
am
m
atica
ll
y
m
an
ip
u
l
ate
an
o
n
to
lo
g
y
,
w
e
u
s
ed
OW
L
2
A
P
I
[
18
]
to
g
en
er
ate
th
e
co
n
ce
p
tu
a
l
m
o
d
el
o
f
a
R
DB
a
n
d
to
le
v
er
a
g
e
E
MF
s
u
p
p
o
r
t f
o
r
r
eso
u
r
ce
m
an
a
g
e
m
e
n
t
f
o
r
th
e
p
er
s
is
te
n
c
e
o
f
t
h
is
co
n
ce
p
tu
a
l
m
o
d
el
an
d
th
e
g
en
er
atio
n
o
f
th
e
D
D
L
S
QL
s
cr
ip
t.
I
n
t
h
i
s
co
n
tex
t,
it
s
h
o
u
ld
b
e
ta
k
e
n
i
n
to
ac
co
u
n
t
t
h
at
a
n
o
n
to
lo
g
y
ca
n
b
e
d
i
v
id
ed
in
to
t
w
o
p
ar
ts
:
T
er
m
i
n
o
lo
g
ica
lB
o
x
(
T
B
o
x
)
an
d
A
s
s
er
tio
n
B
o
x
(
A
B
o
x
)
[
1
9
].
T
B
o
x
co
r
r
esp
o
n
d
s
to
th
e
co
n
ce
p
tu
al
m
o
d
el
o
f
a
n
o
n
to
lo
g
y
r
ep
r
ese
n
ti
n
g
th
e
co
n
ce
p
ts
lin
k
ed
to
g
et
h
er
b
y
s
e
m
a
n
tic
r
elatio
n
s
.
T
o
ea
ch
co
n
ce
p
t
ar
e
attac
h
ed
s
p
ec
if
ic
p
r
o
p
er
ties
,
w
h
ic
h
u
n
iq
u
e
l
y
id
en
t
if
ies
i
t
in
a
d
o
m
ai
n
[
2
0
]
.
A
B
o
x
r
eg
r
o
u
p
s
all
th
e
i
n
s
ta
n
ce
s
o
f
t
h
e
co
n
ce
p
ts
i
n
ad
d
itio
n
to
th
e
in
s
tan
ce
s
o
f
th
e
r
elatio
n
s
as
w
ell
a
s
th
e
v
al
u
e
s
o
f
th
e
p
r
o
p
er
t
ies [
1
9
].
Fig
u
r
e
5
.
On
to
2
DB
m
eta
m
o
d
e
l
3
.
4
.
O
nt
o
2
DB
Desig
n
T
h
e
co
n
s
tit
u
tio
n
o
f
th
e
u
s
er
i
n
ter
f
ac
e
w
il
l
co
m
p
r
i
s
e
,
as
is
ill
u
s
tr
ated
i
n
Fi
g
u
r
e
8
,
a
g
r
ap
h
ic
ed
ito
r
,
an
ex
p
lo
r
er
v
ie
w
,
a
P
r
o
p
er
ties
v
ie
w
an
d
O
u
tli
n
e
v
ie
w
.
T
h
e
g
r
ap
h
ic
ed
ito
r
w
i
ll
d
is
p
la
y
t
h
e
s
c
h
e
m
a
r
es
u
lti
n
g
f
r
o
m
th
e
au
to
m
atic
g
e
n
er
atio
n
o
f
t
h
e
co
n
ce
p
tu
al
s
c
h
e
m
a
o
f
a
d
atab
ase
f
r
o
m
a
n
o
n
to
lo
g
y
,
an
d
will
also
allo
w
u
s
er
s
to
ed
it
th
is
s
c
h
e
m
a
b
y
m
a
k
i
n
g
m
o
d
i
f
icatio
n
s
ac
co
r
d
in
g
to
n
ee
d
s
.
A
s
f
o
r
t
h
e
e
x
p
lo
r
er
v
ie
w,
it
w
i
ll
allo
w
u
s
er
s
to
b
r
o
w
s
e
t
h
e
r
eso
u
r
ce
s
o
f
a
p
r
o
j
ec
t a
n
d
p
o
s
s
ib
ly
n
a
v
ig
a
te
t
h
r
o
u
g
h
a
m
o
d
el
(
s
c
h
e
m
a)
an
d
i
t
s
co
m
p
o
n
e
n
ts
.
T
h
e
p
r
o
p
er
ties
v
ie
w
is
u
s
ed
to
ed
i
t
th
e
p
r
o
p
er
ties
o
f
a
m
o
d
el
(
s
ch
e
m
a)
a
n
d
it
s
ele
m
en
t
s
(
en
ti
ties
,
r
elatio
n
s
h
ip
s
,
attr
ib
u
tes,
id
en
tifie
r
s
an
d
li
n
k
s
)
.
T
h
u
s
,
t
h
e
ele
m
en
t
s
o
f
a
m
o
d
el
ar
e
r
ep
r
esen
ted
g
r
ap
h
icall
y
at
th
e
ed
ito
r
le
v
el
an
d
th
eir
p
r
o
p
er
ties
ar
e
m
a
n
ip
u
lab
le
at
th
e
le
v
el
o
f
t
h
e
p
r
o
p
er
t
y
v
ie
w
.
T
h
e
ed
ito
r
h
as
a
p
alette
th
at
g
r
o
u
p
s
all
th
e
t
y
p
es
o
f
g
r
ap
h
ic
ele
m
e
n
t
s
f
o
r
th
e
d
esig
n
o
f
d
atab
ase
m
o
d
el
s
,
s
u
c
h
as
E
n
ti
t
y
,
R
elat
io
n
,
A
ttrib
u
te,
L
i
n
k
b
et
w
ee
n
A
t
tr
ib
u
te
a
n
d
it
s
E
n
tit
y
/
R
elatio
n
.
A
u
s
er
ca
n
th
er
ef
o
r
e
m
o
d
i
f
y
a
s
c
h
e
m
a
a
u
to
m
atica
ll
y
g
e
n
er
ated
f
r
o
m
a
n
o
n
to
lo
g
y
.
Af
ter
c
h
ec
k
in
g
/
m
o
d
if
y
i
n
g
th
e
s
c
h
e
m
a
a
n
d
its
p
r
o
p
er
ties
as
w
el
l
as
t
h
o
s
e
o
f
its
ele
m
en
t
s
,
th
e
u
s
er
ca
n
p
r
o
ce
ed
to
th
e
g
e
n
er
atio
n
o
f
a
co
r
r
esp
o
n
d
in
g
D
DL
SQ
L
s
cr
ip
t
w
h
ic
h
h
e
ca
n
i
m
p
le
m
e
n
t
w
it
h
i
n
a
R
DB
MS.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8708
On
to
2
DB
:
to
w
a
r
d
s
a
n
ec
lip
s
e
p
lu
g
in
fo
r
a
u
to
ma
ted
d
a
ta
b
a
s
e
…
(
Mo
r
a
d
Ha
jji
)
3303
4.
E
XAM
P
L
E
CAS
E
S
T
UDY
I
n
o
r
d
er
to
s
h
o
w
h
o
w
o
u
r
P
lu
g
-
in
w
o
r
k
s
,
w
e
h
a
v
e
o
p
ted
f
o
r
a
s
i
m
p
lis
tic
o
n
to
lo
g
y
r
ep
r
es
en
tati
v
e
o
f
th
e
f
ield
o
f
p
u
r
ch
a
s
es
an
d
s
a
les.
T
h
is
o
n
to
lo
g
y
h
a
s
th
r
ee
b
asic
co
n
ce
p
ts
:
cu
s
to
m
er
s
,
p
r
o
d
u
cts
an
d
o
r
d
er
s
.
Fig
u
r
e
6
illu
s
tr
ates t
h
e
cr
ea
tio
n
o
f
t
h
is
o
n
to
lo
g
y
u
s
i
n
g
P
r
o
tég
é
o
n
to
lo
g
y
m
a
n
ip
u
latio
n
to
o
l
.
Fig
u
r
e
6
.
On
to
lo
g
y
e
x
a
m
p
le
Af
ter
r
u
n
n
i
n
g
o
u
r
P
lu
g
-
i
n
a
n
d
cr
ea
tin
g
a
n
e
w
p
r
o
j
ec
t u
n
d
er
t
h
e
n
a
m
e
"
T
estOn
to
2
DB
"
,
w
e
p
r
o
ce
ed
to
th
e
cr
ea
tio
n
o
f
a
n
e
w
O
n
to
2
D
B
Diag
r
a
m
as
s
h
o
w
n
o
n
le
f
t
s
i
d
e
in
F
ig
u
r
e
7
.
Af
ter
t
h
is
ac
tio
n
,
t
h
e
w
izar
d
o
f
f
er
s
a
w
i
n
d
o
w
f
o
r
s
elec
t
in
g
t
h
e
o
n
t
o
lo
g
y
s
o
u
r
ce
f
ile
in
ad
d
itio
n
t
o
th
e
g
e
n
er
atio
n
m
et
h
o
d
.
T
h
is
w
izar
d
allo
w
s
u
s
to
co
m
p
lete
th
e
ac
t
io
n
b
y
c
lick
i
n
g
o
n
t
h
e
"
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is
h
"
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u
tto
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r
to
co
n
tin
u
e
b
y
cl
ick
i
n
g
o
n
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h
e
"
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t"
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u
tto
n
to
cu
s
to
m
ize
t
h
e
n
a
m
e
o
f
t
h
e
f
i
le
to
b
e
g
en
er
ated
.
T
h
is
is
s
h
o
wn
o
n
r
ig
h
t s
id
e
in
Fi
g
u
r
e
7
.
Fig
u
r
e
7
.
Ne
w
O
n
to
2
DB
d
iag
r
a
m
,
o
n
to
lo
g
y
an
d
m
eth
o
d
ch
o
i
s
e
F
ig
u
r
e
8
s
h
o
w
s
t
h
e
r
es
u
lt
o
f
th
e
g
e
n
er
atio
n
o
f
a
co
n
ce
p
t
u
al
m
o
d
el
o
f
a
R
DB
f
r
o
m
t
h
e
ex
a
m
p
le
o
n
to
lo
g
y
a
n
d
ch
o
o
s
in
g
th
e
m
eth
o
d
d
ictated
b
y
Y.
L
v
a
n
d
C
.
Xie
[
17
]
.
I
n
ad
d
itio
n
to
th
e
g
en
er
atio
n
o
f
t
h
e
co
n
ce
p
tu
al
m
o
d
el,
o
u
r
O
n
to
2
DB
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lu
g
-
i
n
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iv
e
s
u
s
th
e
h
a
n
d
to
h
a
n
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le
t
h
is
m
o
d
el
c
lo
s
el
y
.
I
n
d
ee
d
,
o
u
r
p
lu
g
-
in
p
r
o
v
id
es u
s
w
it
h
t
h
e
ab
ilit
y
:
−
T
o
an
al
y
ze
t
h
e
d
ata,
−
T
o
v
er
if
y
t
h
e
v
alid
it
y
o
f
th
e
d
a
ta,
−
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o
f
ilter
th
e
d
ata,
−
T
o
s
elec
t th
e
u
s
ef
u
l d
ata,
−
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o
d
elete
th
e
u
s
ele
s
s
d
ata,
−
T
o
en
s
u
r
e
t
h
e
co
h
er
en
ce
o
f
t
h
e
d
ata,
−
T
o
en
s
u
r
e
t
h
e
in
te
g
r
it
y
o
f
t
h
e
d
ata,
I
n
ad
d
itio
n
,
t
h
r
o
u
g
h
th
e
r
elati
o
n
al
m
o
d
el,
w
e
ar
e
ab
le
to
ac
t
o
n
t
h
e
m
o
d
el
i
t
s
elf
.
C
o
n
s
eq
u
en
t
l
y
,
w
e
ca
n
ad
d
o
r
r
em
o
v
e
en
ti
ties
,
at
tr
ib
u
tes,
an
d
r
elatio
n
s
h
ip
s
.
Af
ter
cu
s
to
m
izin
g
t
h
e
g
e
n
er
ated
co
n
ce
p
tu
al
m
o
d
el
,
th
e
P
lu
g
-
i
n
allo
w
s
u
s
to
g
e
n
er
ate
th
e
DD
L
SQ
L
s
cr
ip
t
w
h
o
s
e
ex
ec
u
tio
n
p
r
o
d
u
ce
s
t
h
e
p
h
y
s
ical
s
tr
u
ctu
r
e
o
f
th
e
r
elatio
n
al
d
ata
b
ase
w
i
th
i
n
t
h
e
ch
o
s
en
R
DB
MS.
T
h
e
g
en
e
r
atio
n
o
f
th
e
DD
L
SQ
L
s
c
r
ip
t
is
illu
s
tr
ated
in
Fig
u
r
e
9
.
Ho
w
ev
er
,
t
h
e
r
esu
lt
o
f
th
e
e
x
ec
u
t
io
n
o
f
t
h
is
s
cr
ip
t is sh
o
w
n
i
n
Fi
g
u
r
e
1
0
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
4
,
A
u
g
u
s
t
201
9
:
3
2
9
8
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330
6
3304
Fig
u
r
e
8
.
On
to
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DB
d
esig
n
p
r
e
v
ie
w
Fig
u
r
e
9
.
DDL
SQ
L
s
cr
ip
t g
en
er
atio
n
Fig
u
r
e
10
.
R
esu
lt
in
g
d
atab
ase
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8708
On
to
2
DB
:
to
w
a
r
d
s
a
n
ec
lip
s
e
p
lu
g
in
fo
r
a
u
to
ma
ted
d
a
ta
b
a
s
e
…
(
Mo
r
a
d
Ha
jji
)
3305
5.
D
I
SCU
SS
I
O
N
O
F
R
E
SU
L
T
S
T
h
e
p
r
o
lif
er
atio
n
o
f
Se
m
an
t
i
c
W
eb
p
r
o
j
ec
ts
o
v
er
th
e
m
o
d
er
n
er
a
is
i
m
p
r
es
s
iv
e.
T
h
e
n
o
tio
n
o
f
o
n
to
lo
g
y
is
t
h
e
f
u
n
d
a
m
e
n
tal
p
illar
o
f
th
is
d
is
cip
li
n
e.
As
a
r
esu
lt,
o
n
to
lo
g
ie
s
ar
e
g
r
ad
u
all
y
in
v
ad
in
g
th
e
f
ield
o
f
in
f
o
r
m
atio
n
s
y
s
te
m
s
.
T
h
e
y
ar
e
u
s
ed
f
o
r
th
e
s
ta
n
d
a
r
d
izatio
n
,
s
tr
u
ct
u
r
in
g
a
n
d
f
o
r
m
al
izatio
n
o
f
t
h
e
W
eb
,
W
eb
Ser
v
ice,
e
-
lear
n
in
g
s
y
s
te
m
s
,
et
c.
I
n
f
ac
t,
o
n
to
lo
g
ie
s
h
av
e
b
ec
o
m
e
w
id
el
y
u
s
ed
in
m
an
y
ar
ea
s
a
n
d
t
h
eir
n
u
m
b
er
an
d
s
ize
ar
e
g
r
o
w
in
g
.
Ho
w
e
v
er
,
t
h
e
r
ep
r
esen
tat
io
n
a
n
d
p
er
s
is
te
n
ce
o
f
d
ata
in
to
d
ay
's
in
f
o
r
m
a
tio
n
s
y
s
te
m
s
is
d
o
m
i
n
ated
b
y
th
e
r
elatio
n
al
m
o
d
el
a
n
d
to
a
l
ess
er
d
eg
r
ee
b
y
t
h
e
o
b
j
ec
t
m
o
d
el.
Desp
ite
th
is
d
o
m
i
n
atio
n
,
t
h
e
ad
o
p
tio
n
o
f
th
e
o
n
to
lo
g
ical
m
o
d
el
as
p
ar
t
o
f
th
e
r
ep
r
esen
tatio
n
o
f
k
n
o
w
l
ed
g
e
p
r
o
v
es
to
b
e
in
p
er
p
etu
al
g
r
o
w
th
.
I
n
t
h
i
s
co
n
tr
ib
u
tio
n
,
w
e
p
r
o
v
id
e
a
n
ew
ap
p
r
o
ac
h
f
o
r
th
e
d
ev
elo
p
m
en
t
o
f
a
p
r
ac
tical
an
d
ex
p
lo
itab
le
to
o
l
d
ev
elo
p
ed
ac
co
r
d
in
g
to
th
e
MD
A
ap
p
r
o
a
ch
in
it
s
v
er
s
io
n
i
m
p
le
m
en
ted
b
y
E
clip
s
e.
T
h
u
s
,
w
e
to
u
c
h
o
n
a
r
elativ
el
y
r
ec
en
t
an
d
i
n
n
o
v
ati
v
e
f
ield
b
y
o
p
en
i
n
g
t
h
e
w
a
y
to
th
e
d
ev
elo
p
m
e
n
t
o
f
to
o
ls
allo
w
i
n
g
th
e
co
ex
i
s
ten
ce
b
et
w
ee
n
th
e
o
n
to
lo
g
ical
d
atab
ases
a
n
d
th
e
r
elatio
n
al
d
atab
ases
.
Fo
r
th
e
v
alid
atio
n
o
f
o
u
r
co
n
t
r
ib
u
tio
n
,
w
e
ca
r
r
ied
o
u
t
an
ex
a
m
p
le
o
f
a
r
ep
r
esen
tati
v
e
ca
s
e
s
tu
d
y
f
o
r
ev
alu
a
tin
g
t
h
e
f
u
n
ctio
n
ali
ties
o
f
o
u
r
d
ev
elo
p
ed
E
cli
p
s
e
P
lu
g
-
i
n
.
W
e
ad
m
it
th
at
t
h
e
ex
a
m
p
le
is
s
i
m
p
li
s
tic,
b
u
t
w
e
h
a
v
e
s
ee
n
th
e
ef
f
icie
n
c
y
a
n
d
th
e
g
o
o
d
f
u
n
ctio
n
in
g
o
f
th
is
P
lu
g
-
i
n
.
I
t
f
u
l
f
il
s
t
h
e
g
ap
b
et
w
ee
n
t
h
e
t
h
eo
r
y
an
d
p
r
ac
tice
o
f
co
u
p
lin
g
an
o
n
to
lo
g
y
w
it
h
a
r
elatio
n
al
d
atab
a
s
e.
T
h
e
r
esu
lts
s
h
o
w
t
h
at
o
u
r
ap
p
r
o
ac
h
allo
w
s
to
cr
ea
te
a
n
E
clip
s
e
P
l
u
g
-
i
n
f
o
r
th
e
g
en
er
atio
n
,
cu
s
to
m
izatio
n
an
d
i
m
p
le
m
e
n
t
atio
n
o
f
a
r
elatio
n
al
co
n
ce
p
tu
a
l
m
o
d
el
f
r
o
m
a
n
o
n
to
lo
g
y
.
I
n
f
ac
t,
th
e
g
e
n
er
atio
n
o
f
th
e
co
n
ce
p
tu
al
m
o
d
el
is
a
u
to
m
at
ic,
th
e
cu
s
to
m
izat
io
n
i
s
ca
r
r
ied
o
u
t
th
r
o
u
g
h
t
h
e
g
r
a
p
h
ic
ed
itio
n
an
d
th
e
g
en
er
atio
n
o
f
t
h
e
DD
L
SQ
L
s
cr
ip
t
is
a
u
to
m
atic.
I
n
ad
d
itio
n
,
o
u
r
ap
p
r
o
ac
h
d
e
m
o
n
s
tr
ates
t
h
e
e
f
f
ec
tiv
e
n
es
s
o
f
th
e
to
o
ls
d
ev
elo
p
ed
b
y
E
clip
s
e
as
p
ar
t
o
f
th
e
E
clip
s
e
Mo
d
e
lin
g
P
r
o
j
ec
t.
I
n
p
ar
ticu
lar
,
th
e
GM
F
s
u
b
-
p
r
o
j
ec
t
allo
w
s
th
e
cr
ea
t
io
n
o
f
g
r
ap
h
i
c
ed
ito
r
s
ac
co
r
d
in
g
to
a
h
ig
h
l
y
d
ev
elo
p
ed
lev
el
o
f
ab
s
tr
ac
tio
n
b
ased
o
n
th
e
i
m
p
le
m
en
ta
tio
n
o
f
t
h
e
MD
A
a
p
p
r
o
ac
h
at
th
e
E
clip
s
e
lev
el.
6.
CO
NCLU
SI
O
N
I
n
t
h
is
p
ap
er
,
w
e
p
r
esen
ted
o
u
r
ap
p
r
o
ac
h
f
o
r
t
h
e
d
ev
e
lo
p
m
e
n
t
o
f
O
n
to
2
DB
an
E
clip
s
e
P
lu
g
-
in
ai
m
ed
at
th
e
au
to
m
a
tic
g
e
n
er
atio
n
o
f
a
co
n
ce
p
tu
al
m
o
d
el
o
f
a
r
elatio
n
al
d
atab
ase
f
r
o
m
an
o
n
to
lo
g
y
w
it
h
th
e
p
o
s
s
ib
ilit
y
o
f
ed
iti
n
g
t
h
i
s
m
o
d
el.
I
n
th
is
ap
p
r
o
ac
h
w
e
h
a
v
e
d
ev
elo
p
ed
a
DSL
b
ased
o
n
E
MF
o
f
f
er
i
n
g
a
h
ig
h
lev
el
o
f
ab
s
tr
ac
tio
n
.
I
n
ad
d
itio
n
,
w
e
r
ev
ie
w
ed
th
e
d
i
f
f
er
en
t
c
o
n
ce
p
ts
an
d
to
o
ls
n
ee
d
ed
f
o
r
th
e
i
m
p
le
m
e
n
tatio
n
o
f
th
i
s
v
i
s
u
a
l
m
o
d
eli
n
g
to
o
l b
ased
o
n
th
e
E
clip
s
e
GM
F Fr
a
m
e
w
o
r
k
.
T
h
r
o
u
g
h
th
i
s
w
o
r
k
,
w
e
h
a
v
e
p
r
o
v
en
t
h
e
f
ea
s
ib
ili
t
y
o
f
th
e
au
to
m
ated
g
e
n
er
atio
n
o
f
th
e
co
n
ce
p
tu
al
m
o
d
el
o
f
a
r
elatio
n
al
d
atab
ase
f
r
o
m
a
n
o
n
to
lo
g
y
a
n
d
th
u
s
f
ill
ed
o
u
r
n
ee
d
f
o
r
s
u
ch
a
to
o
l i
n
o
r
d
er
to
im
p
le
m
e
n
t
o
u
r
g
lo
b
al
ap
p
r
o
ac
h
th
at
ai
m
s
to
p
r
o
d
u
ce
d
ec
is
io
n
m
a
k
in
g
in
d
icato
r
s
f
r
o
m
a
n
o
n
to
lo
g
y
g
e
n
er
ated
f
r
o
m
a
co
r
p
u
s
o
f
d
o
cu
m
e
n
ts
[
4
]
.
A
d
d
itio
n
al
w
o
r
k
is
n
ee
d
ed
to
i
m
p
r
o
v
e
t
h
is
p
lu
g
-
in
b
y
e
n
f
o
r
cin
g
v
alid
atio
n
r
u
le
s
th
r
o
u
g
h
Ob
j
ec
t
C
o
n
s
tr
ai
n
t
L
a
n
g
u
a
g
e
(
OC
L
)
an
d
i
m
p
le
m
en
tin
g
o
th
er
r
elatio
n
al
d
atab
ase
m
e
th
o
d
s
f
r
o
m
a
n
o
n
to
lo
g
y
.
An
o
th
er
p
er
s
p
ec
ti
v
e
is
to
d
ev
elo
p
an
o
th
er
P
lu
g
-
i
n
ai
m
ed
at
g
e
n
er
atin
g
t
h
e
co
n
ce
p
tu
al
m
o
d
el
o
f
a
Data
W
ar
eh
o
u
s
e
f
r
o
m
a
d
atab
ase.
RE
F
E
R
E
NC
E
S
[1
]
T.
R.
G
ru
b
e
r,
“
T
h
e
Ro
le
o
f
Co
m
m
o
n
On
to
lo
g
y
in
A
c
h
iev
in
g
S
h
a
r
a
b
le
Re
u
sa
b
le
Kn
o
w
led
g
e
Ba
se
s
,
”
Pro
c
.
KR
'9
1
S
e
c
o
n
d
In
t
'
l
Co
n
f.
Prin
c
ip
les
o
f
K
n
o
wled
g
e
Rep
re
se
n
ta
ti
o
n
a
n
d
Re
a
so
n
i
n
g
,
p
p
.
6
0
1
-
6
0
2
,
1
9
9
1
.
[2
]
C.
Ro
u
ss
e
y
,
F
.
P
i
n
e
t
,
M
.
A
.
Ka
n
g
,
a
n
d
O.
Co
rc
h
o
,
“
On
to
lo
g
ies
f
o
r
In
tero
p
e
ra
b
il
it
y
,
”
in
On
t
o
l
o
g
ies
in
Ur
b
a
n
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v
e
lo
p
me
n
t
Pro
jec
ts
,
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o
n
d
o
n
:
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p
rin
g
e
r
L
o
n
d
o
n
,
p
p
.
3
9
-
53
,
2
0
1
1
.
[3
]
P
.
Cim
ian
o
a
n
d
J.
V
o
lk
e
r,
“
Tex
t2
On
to
–
A
F
ra
m
e
w
o
rk
f
o
r
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to
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g
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e
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a
n
d
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ta
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Ch
a
n
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e
Dis
c
o
v
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r
y
,
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tu
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g
u
a
g
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p
ro
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ss
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g
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n
d
in
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ti
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ms
:
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th
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ter
n
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a
l
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fer
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0
0
5
,
p
p
.
2
2
7
-
2
3
8
,
2
0
0
5
.
[4
]
M
.
Ha
jj
i,
M
.
Q
b
a
d
o
u
,
a
n
d
K.
M
a
n
so
u
ri
,
“
P
r
o
p
o
sa
l
f
o
r
a
n
e
w
s
y
ste
m
ic
a
p
p
ro
a
c
h
o
f
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n
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li
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r
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o
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if
ic
o
n
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o
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to
d
o
c
u
m
e
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tary
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so
u
rc
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se
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e
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u
c
a
ti
o
n
a
l
d
o
c
u
m
e
n
ts,”
J
o
u
rn
a
l
o
f
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h
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re
ti
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a
l
a
n
d
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p
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li
e
d
In
fo
rm
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t
io
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e
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h
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o
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o
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y
,
v
o
l.
8
9
,
n
o
.
2
,
p
p
.
4
8
1
-
4
8
8
,
2
0
1
6
.
[5
]
M
.
Ha
jj
i,
M
.
Qb
a
d
o
u
,
a
n
d
K.
M
a
n
so
u
ri
,
“
T
o
wa
rd
M
u
lt
i
-
A
p
p
ro
a
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h
M
o
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l
f
o
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a
D
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ta
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re
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se
d
e
sig
n
f
ro
m
a
n
On
to
lo
g
y
,
”
T
ra
n
s.
M
a
c
h
.
L
e
a
r
n
.
Art
if
.
I
n
tell.
,
v
o
l.
5
,
n
o
.
4
,
2
0
1
7
.
[6
]
A
.
Ga
li
,
C.
Ch
e
n
,
K.
Cla
y
p
o
o
l
a
n
d
R.
Uc
e
d
a
S
o
sa
,
"
F
ro
m
o
n
to
lo
g
y
to
re
latio
n
a
l
d
a
tab
a
se
s,"
in
Co
n
c
e
p
tu
a
l
M
o
d
e
li
n
g
fo
r A
d
v
a
n
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e
d
A
p
p
li
c
a
ti
o
n
Do
ma
i
n
s
,
L
NCS,
v
o
l.
3
2
8
9
,
p
p
.
2
7
8
-
2
8
9
,
2
0
0
5
.
[7
]
E.
V
y
sn
iau
sk
a
s,
a
n
d
L
.
Ne
m
u
ra
it
e
,
“
T
ra
n
s
f
o
r
m
in
g
o
n
to
l
o
g
y
re
p
re
se
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tatio
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f
ro
m
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WL
to
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latio
n
a
l
d
a
tab
a
se
,
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fo
rm
a
t
io
n
T
e
c
h
n
o
l
o
g
y
a
n
d
Co
n
t
ro
l
,
v
o
l.
3
5
A
,
n
o
.
3
,
p
p
.
3
3
3
-
3
4
3
,
2
0
0
6
.
[8
]
I.
A
stro
v
a
,
N.
Ko
rd
a
a
n
d
A
.
Ka
lj
a
,
“
S
to
rin
g
OW
L
On
to
lo
g
ies
in
S
QL
Re
latio
n
a
l
Da
tab
a
se
s,”
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
o
f
El
e
c
trica
l,
Co
mp
u
ter
a
n
d
S
y
ste
m E
n
g
i
n
e
e
rin
g
,
2
0
0
7
.
[9
]
C.
F
a
n
k
a
m
,
L
.
Be
ll
a
trec
h
e
,
H.
De
h
a
in
sa
la,
Y.
A
it
Am
e
u
r
a
n
d
G
.
P
i
e
rra
,
“
S
IS
RO
:
C
o
n
c
e
p
ti
o
n
d
e
b
a
se
s
d
e
d
o
n
n
é
e
s
à
p
a
rti
r
d
’
o
n
t
o
l
o
g
ies
d
e
d
o
m
a
in
e
,”
T
S
I
V
o
lu
me
2
8
,
p
a
g
e
s 1
-
2
9
,
2
0
0
9
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
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g
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s
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201
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:
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3306
[1
0
]
J.
T
rin
k
u
n
a
s
a
n
d
O.
V
a
silec
a
s,
“
A
Gra
p
h
Orie
n
ted
M
o
d
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l
f
o
r
On
to
l
o
g
y
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ra
n
s
f
o
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m
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ti
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n
in
t
o
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o
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e
p
t
u
a
l
Da
ta
M
o
d
e
l
,
”
In
fo
rm
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n
T
e
c
h
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o
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d
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l
.
3
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(1
A
),
p
p
.
1
2
6
-
1
3
2
,
2
0
0
7
.
[1
1
]
I.
A
stro
v
a
,
N.
Ko
rd
a
a
n
d
A
.
Ka
lj
a
,
“
S
to
ri
n
g
OW
L
o
n
to
lo
g
ies
in
S
QL
Re
latio
n
a
l
Da
tab
a
se
s,”
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g
in
e
e
rin
g
a
n
d
T
e
c
h
n
o
l
o
g
y
,
Vo
l.
2
3
,
p
p
.
1
6
7
-
1
7
2
,
2
0
0
7
.
[1
2
]
E.
V
y
sn
iau
sk
a
s
a
n
d
L
.
Ne
m
u
ra
it
e
,
“
M
a
p
p
in
g
o
f
OWL
o
n
to
lo
g
y
c
o
n
c
e
p
ts
to
RDB
sc
h
e
m
a
s
,
”
in
In
f
o
rm
a
ti
o
n
T
e
c
h
n
o
l
o
g
ies
’
2
0
0
9
,
Pro
c
e
e
d
in
g
s
o
f
th
e
1
5
th
In
ter
n
a
ti
o
n
a
l
Co
n
fer
e
n
c
e
o
n
In
fo
rm
a
ti
o
n
a
n
d
S
o
ft
w
a
re
T
e
c
h
n
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lo
g
ies
;
p
p
.
3
1
7
-
327
,
2
0
0
9
.
[1
3
]
M
.
M
a
h
f
o
u
d
h
a
n
d
W
.
Ja
z
iri
,
“
Ap
p
r
o
c
h
e
d
e
c
o
u
p
lag
e
d
e
BD
e
t
d
’o
n
t
o
lo
g
ie
p
o
u
r
l'
a
id
e
à
la
d
é
c
isi
o
n
sé
m
a
n
ti
q
u
e
:
c
o
n
tri
b
u
ti
o
n
p
o
u
r
la
sa
ti
sf
a
c
ti
o
n
d
e
s
re
q
u
ê
te
s
S
QL
e
t
S
P
A
RQ
L
,
”
T
e
c
h
n
iq
u
e
s
e
t
S
c
ien
c
e
s
In
fo
rm
a
ti
q
u
e
s,
v
o
lu
me
3
2
o
f
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rm
e
s
,
p
a
g
e
s 8
6
3
-
8
8
9
,
2
0
1
3
.
[1
4
]
S
.
R.
Ch
a
u
d
h
u
ri
P
a
tw
a
ri,
A
.
Ba
n
e
rjee
,
S
.
Na
tara
jan
,
S
.
P
a
n
d
e
y
,
“
A
c
o
m
p
le
m
e
n
tar
y
d
o
m
a
in
sp
e
c
if
ic
d
e
sig
n
e
n
v
iro
n
m
e
n
t
a
id
in
g
S
y
sML
,
”
2
0
1
6
IEE
E
In
ter
n
a
ti
o
n
a
l
S
y
m
p
o
siu
m
o
n
S
y
ste
ms
En
g
i
n
e
e
rin
g
(
IS
S
E)
,
p
p
.
1
-
8
,
2
0
1
6
.
[1
5
]
C.
A
n
isz
c
z
y
k
,
“
Us
in
g
G
EF
w
it
h
EM
F
,
”
Ecli
p
se
.
o
rg
,
2
0
1
9
.
[
O
n
li
n
e
]
.
A
v
a
il
a
b
le:
h
tt
p
:
//
ww
w
.
e
c
li
p
se
.
o
rg
/article
s/
Article
-
G
EF
-
EM
F
/g
e
f
-
e
m
f
.
h
t
m
l.
[A
c
c
e
ss
e
d
:
1
0
-
Ja
n
-
2
0
1
9
].
[1
6
]
N.
Rich
a
rd
C.
G
ro
n
b
a
c
k
,
“
G
r
a
p
h
ica
l
M
o
d
e
li
n
g
F
ra
m
e
w
o
rk
|
T
h
e
E
c
li
p
se
F
o
u
n
d
a
ti
o
n
,”
Eclip
se
.
o
rg
,
2
0
1
9
.
[
O
n
li
n
e
].
Av
a
il
a
b
le:
h
tt
p
:/
/www
.
e
c
li
p
se
.
o
rg
/m
o
d
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li
n
g
/g
m
p
/.
[
A
c
c
e
ss
e
d
:
1
0
-
Ja
n
-
2
0
1
9
]
.
[1
7
]
Y.
L
v
a
n
d
C.
X
ie,
“
A
n
o
n
to
l
o
g
y
b
a
se
d
a
p
p
ro
a
c
h
t
o
b
u
il
d
c
o
n
c
e
p
tu
a
l
d
a
ta
m
o
d
e
l,
”
2
0
1
2
9
t
h
In
ter
n
a
ti
o
n
a
l
Co
n
fer
e
n
c
e
o
n
Fu
zz
y
S
y
ste
ms
a
n
d
Kn
o
wle
d
g
e
Disc
o
v
e
ry
,
S
ich
u
a
n
,
p
p
.
8
0
7
-
810
,
2
0
1
2
.
[1
8
]
M
.
Ho
rrid
g
e
a
n
d
S
.
Be
c
h
h
o
f
e
r,
“
T
h
e
OWL
A
P
I:
A
Ja
v
a
A
P
I
f
o
r
OWL
o
n
to
l
o
g
ies
,
”
S
e
ma
n
t.
W
e
b
,
v
o
l.
2
,
n
o
.
1
,
p
p
.
1
1
–
2
1
,
2
0
1
1
.
[1
9
]
I.
Ho
rro
c
k
s,
“
On
t
o
lo
g
ies
a
n
d
th
e
se
m
a
n
ti
c
w
e
b
,
”
C
o
m
m
u
n
.
A
CM
,
v
o
l.
5
1
,
n
o
.
1
2
,
p
p
.
5
8
6
7
,
2
0
0
8
.
[2
0
]
J.
Ch
a
rlet,
B.
Ba
c
h
i
m
o
n
t
&
R.
T
r
o
n
c
y
,
“
On
to
lo
g
ies
P
o
u
r
L
e
Web
S
e
m
a
n
ti
q
u
e
,
"
In
L
e
Web
S
e
m
a
n
ti
q
u
e
,
Ch
a
rlet
J.,
L
a
u
b
let
P
.
&
Re
y
n
a
u
d
C.
(Ed
.
)
,
Ho
rs
S
e
rie
De
L
a
Re
v
u
e
In
f
o
r
m
a
ti
o
n
I
n
tera
c
ti
o
n
In
tell
ig
e
n
c
e
(I3
),
4
(1
),
Ce
p
a
d
u
e
s,
T
o
u
lo
u
se
,
pp
.
2
1
-
43
,
2
0
0
4
.
Evaluation Warning : The document was created with Spire.PDF for Python.