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g
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e
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k
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rit
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v
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lu
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te
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e
d
s e
x
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e
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K
ey
w
o
r
d
s
:
E
v
alu
at
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n
th
e
o
r
y
SQu
aRE
s
tan
d
ar
d
s
User
ex
p
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ce
f
r
am
ewo
r
k
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ee
d
s
ex
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ce
UX
ev
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m
eth
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T
h
is i
s
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o
p
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ss
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rticle
u
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d
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th
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CC B
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SA
li
c
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se
.
C
o
r
r
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s
p
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nd
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A
uth
o
r
:
Mo
h
am
m
ad
Z
ar
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u
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,
C
o
lleg
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o
f
C
o
m
p
u
ter
an
d
I
n
f
o
r
m
atio
n
Scien
ce
s
(
C
C
I
S),
Prin
ce
Su
ltan
Un
iv
er
s
ity
,
R
iy
ad
h
,
Kin
g
d
o
m
o
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Sau
d
i A
r
ab
ia
.
E
m
ail:
m
za
r
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r
@
p
s
u
.
ed
u
.
s
a
1.
I
NT
RO
D
UCT
I
O
N
Ou
r
liv
es,
n
o
wad
ay
s
,
ar
e
to
tally
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ig
ital
.
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m
an
s
,
ar
e
u
s
in
g
s
o
f
twar
e
ap
p
licatio
n
s
in
all
o
u
r
life
asp
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ts
to
m
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o
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aily
o
b
je
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f
u
lf
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d
s
.
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f
twar
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s
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lu
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th
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co
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p
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s
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m
o
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ap
p
s
ar
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wid
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s
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s
ca
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f
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u
n
d
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e
d
s
o
f
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v
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le
s
o
f
twar
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s
o
lu
tio
n
s
th
at
f
it
th
eir
n
ee
d
s
.
Acc
o
r
d
in
g
ly
,
u
s
er
n
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d
s
ar
e
b
ec
o
m
i
n
g
in
tr
icate
an
d
th
e
s
o
f
twar
e
o
r
g
an
izatio
n
s
ar
e
co
m
p
etin
g
h
i
g
h
to
s
atis
f
y
u
s
er
r
eq
u
ir
em
e
n
ts
an
d
th
e
d
esire
s
f
o
r
b
etter
q
u
ality
.
T
h
is
co
m
p
etitio
n
is
n
o
t
ab
o
u
t
s
atis
f
y
in
g
th
e
f
u
n
ctio
n
al
r
eq
u
ir
em
e
n
ts
b
u
t
also
s
atis
f
y
u
s
er
ex
p
er
ien
ce
as we
ll
[
1
]
.
R
ec
en
tly
,
th
e
d
o
m
ain
o
f
u
s
er
ex
p
er
ien
ce
(
UX)
g
ai
n
ed
m
y
f
o
cu
s
f
r
o
m
b
o
th
ac
a
d
em
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an
d
in
d
u
s
tr
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wh
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e
ac
ad
em
ic
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n
v
ir
o
n
m
en
t
s
ar
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tr
y
in
g
to
b
etter
co
m
p
r
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h
en
d
,
d
ef
in
e,
a
n
d
f
o
r
m
u
late
th
e
co
n
ce
p
t
o
f
u
s
er
ex
p
er
ien
ce
.
T
h
is
ef
f
o
r
t
h
as
s
h
ap
ed
v
ar
io
u
s
d
ef
i
n
itio
n
s
of
u
s
er
ex
p
er
ien
ce
[
2
]
.
I
n
co
n
cl
u
s
io
n
,
a
co
n
s
en
s
u
s
in
th
e
v
ar
io
u
s
r
esear
ch
es
an
d
p
r
a
ctitio
n
er
s
co
m
m
u
n
ities
in
th
at
UX
“is
m
o
r
e
th
an
ju
s
t
a
p
r
o
d
u
ct's
u
s
ef
u
ln
ess
an
d
u
s
ab
ilit
y
”
[
3
]
,
UX
is
th
e
r
esu
l
t
o
f
in
ter
ac
tio
n
with
s
o
f
twar
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,
s
y
s
tem
o
r
s
er
v
ice,
af
f
ec
ted
b
y
a
s
et
o
f
asp
ec
ts
in
a
“d
y
n
am
ic,
c
o
n
tex
t
-
d
ep
en
d
e
n
t,
an
d
s
u
b
jectiv
e”
m
an
n
er
[
2
]
.
T
h
e
u
s
er
ex
p
er
ien
ce
“a
t
tem
p
ts
to
in
clu
d
e
s
u
b
jectiv
e
attr
ib
u
tes
lik
e,
f
o
r
in
s
tan
ce
,
ae
s
th
eti
cs,
em
o
tio
n
al,
an
d
s
o
cial
asp
ec
t
in
a
d
esig
n
s
p
ac
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wh
ich
h
as
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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T
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KOM
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T
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m
m
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n
C
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m
p
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t E
l Co
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
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r
2
0
2
0
:
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7
8
7
-
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2788
p
r
ev
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u
s
ly
co
n
ce
r
n
ed
with
ea
s
e
o
f
u
s
e”
[
4
]
.
So
,
f
o
r
s
o
f
twar
e
ap
p
licat
io
n
s
to
r
e
m
ain
co
m
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itiv
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d
attr
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f
o
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s
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o
u
ld
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e
ev
alu
ated
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ig
h
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p
ar
ed
t
o
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t
h
er
co
m
p
etito
r
s
in
th
e
m
ar
k
et.
B
u
t
th
e
q
u
esti
o
n
is
h
o
w
to
ev
al
u
ate
UX?
T
h
e
liter
atu
r
e
d
o
c
u
m
en
ts
s
o
m
e
r
esear
ch
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to
ev
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U
X
,
s
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f
o
r
ex
am
p
le
[
5
,
6
]
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U
n
f
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ately
,
th
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m
ain
f
law
in
s
u
ch
r
esear
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r
k
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th
at
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n
s
tr
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cted
with
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u
t c
o
n
s
id
er
in
g
th
e
e
v
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cip
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o
n
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f
th
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en
t
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y
as
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d
ev
elo
p
th
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tio
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m
eth
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d
.
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r
ac
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will
p
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v
id
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m
o
r
e
r
ig
o
r
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d
f
o
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m
eth
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eth
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s
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d
is
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UX
f
r
am
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k
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th
e
ev
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th
e
o
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y
p
r
in
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l
es,
an
d
th
e
S
o
f
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Qu
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R
eq
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d
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ter
m
in
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(
SQu
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s
tan
d
ar
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d
o
cu
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e
n
ted
in
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SO/IE
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2
5
0
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2
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d
I
SO/I
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2
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p
ar
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th
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s
s
b
etwe
en
u
s
er
ex
p
er
ien
ce
asp
ec
ts
o
f
UX
f
r
am
ewo
r
k
a
n
d
q
u
ality
attr
i
b
u
tes
o
f
I
SO
2
5
0
0
0
s
er
ies
SQu
aRE
s
tan
d
ar
d
s
as we
ll a
s
th
e
ap
p
licatio
n
o
f
th
e
k
ey
c
o
n
ce
p
ts
o
f
e
v
alu
atio
n
to
d
esig
n
an
d
d
ev
elo
p
th
e
p
r
o
p
o
s
ed
u
s
er
ex
p
er
ien
ce
ev
al
u
atio
n
m
eth
o
d
s
.
Sectio
n
4
,
d
is
cu
s
s
es
th
e
q
u
ality
o
f
th
e
d
e
v
elo
p
e
d
UX
ev
alu
atio
n
m
eth
o
d
.
Sectio
n
5
,
p
r
esen
ts
a
ca
s
e
s
tu
d
y
th
at
a
p
p
lies
th
e
d
ev
elo
p
e
d
e
v
alu
atio
n
m
eth
o
d
t
o
ev
al
u
ate
u
s
er
n
ee
d
s
e
x
p
er
ien
c
e
o
f
a
m
o
b
ile
ap
p
licatio
n
o
wn
e
d
b
y
o
n
e
o
f
th
e
m
ain
telec
o
m
m
u
n
icatio
n
c
o
m
p
a
n
ies
in
th
e
Kin
g
d
o
m
.
Sectio
n
6
,
p
r
esen
ts
th
e
co
n
clu
s
io
n
o
f
o
u
r
s
tu
d
y
an
d
f
u
tu
r
e
wo
r
k
s
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
T
h
is
r
esear
ch
p
ap
er
f
o
c
u
s
s
es
o
n
d
ev
elo
p
i
n
g
a
u
s
er
ex
p
e
r
ien
ce
ev
alu
atio
n
m
eth
o
d
.
T
h
e
f
o
l
lo
win
g
ar
e
u
s
ed
as
in
p
u
t
to
d
e
v
elo
p
s
u
ch
a
n
ev
alu
atio
n
m
eth
o
d
:
t
h
e
UX
f
r
am
ewo
r
k
d
ev
el
o
p
ed
in
[7
]
,
th
e
ev
alu
atio
n
th
e
o
r
y
co
n
ce
p
t
[8
,
9]
,
an
d
th
e
I
SO/IE
C
2
5
0
2
2
a
n
d
I
SO/IE
C
2
5
0
2
3
[
1
0
,
1
1
]
.
2
.
1
.
UX
f
r
a
m
ewo
r
k
T
h
e
UX
f
r
am
ewo
r
k
,
p
r
o
p
o
s
ed
in
[
7
]
,
h
as
s
p
ec
if
ied
f
o
u
r
UX
d
im
en
s
io
n
s
,
n
am
ely
,
Valu
e,
te
ch
n
o
lo
g
y
ex
p
er
ien
ce
(
T
X)
,
b
r
an
d
ex
p
e
r
ien
ce
(
B
X)
,
an
d
u
s
er
n
ee
d
s
ex
p
er
ien
ce
(
NX)
d
im
e
n
s
io
n
s
.
T
h
e
s
e
d
im
en
s
io
n
s
f
o
r
m
th
e
ce
n
tr
al
p
ar
t o
f
th
e
f
r
am
ew
o
r
k
as illu
s
tr
ated
i
n
Fig
u
r
e
1
.
T
h
e
f
r
a
m
ewo
r
k
illu
s
tr
ates,
as we
ll,
th
e
r
e
latio
n
s
h
ip
b
etwe
en
th
e
UX
d
im
en
s
io
n
s
an
d
th
e
u
s
er
ex
p
er
ien
ce
asp
ec
ts
th
at
h
av
e
a
d
ir
ec
t
o
r
in
d
ir
ec
t
im
p
ac
t
o
n
th
e
u
s
er
ex
p
er
ien
ce
.
T
h
is
f
r
am
ewo
r
k
h
as
d
ef
in
ed
s
ev
en
ca
te
g
o
r
ies
o
f
UX
asp
ec
ts
an
d
s
ev
er
al
g
e
n
er
ic
m
eth
o
d
s
t
h
at
ca
n
b
e
u
s
ed
to
m
ea
s
u
r
e
u
s
er
ex
p
er
i
en
ce
asp
ec
ts
[
7
]
.
Ou
r
r
esear
c
h
wo
r
k
f
o
cu
s
es
o
n
o
n
e
d
im
e
n
s
io
n
,
th
e
u
s
er
n
ee
d
s
ex
p
er
ien
ce
d
im
en
s
io
n
,
t
o
d
ev
e
lo
p
u
s
er
ex
p
er
ien
ce
n
ee
d
s
ev
al
u
atio
n
m
eth
o
d
.
Fig
u
r
e
1
.
User
ex
p
er
ien
ce
f
r
a
m
ewo
r
k
[
7
]
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l Co
n
tr
o
l
A
r
ig
o
r
o
u
s
u
s
er n
ee
d
s
ex
p
erien
ce
ev
a
lu
a
tio
n
meth
o
d
b
a
s
ed
o
n
… (
Mo
h
a
mma
d
Za
r
o
u
r
)
2789
2
.
2
.
I
SO
2
5
0
0
0
s
er
ies s
t
a
nd
a
rd
(
SQ
ua
RE
)
“T
h
e
q
u
ality
o
f
a
s
y
s
tem
is
th
e
d
eg
r
ee
to
wh
ich
th
e
s
y
s
tem
s
a
tis
f
ies
th
e
s
tated
an
d
im
p
lied
n
ee
d
s
o
f
its
v
ar
io
u
s
s
tak
eh
o
ld
er
s
,
th
ese
s
tated
an
d
im
p
lie
d
n
ee
d
s
ar
e
r
e
p
r
esen
ted
in
Sy
s
tem
an
d
So
f
twa
r
e
p
r
o
d
u
ct
Qu
ality
R
eq
u
ir
em
en
ts
an
d
E
v
al
u
atio
n
(
SQu
aRE)
s
er
ies
o
f
s
tan
d
ar
d
s
b
y
q
u
ality
m
o
d
els
th
at
ca
teg
o
r
ize
s
y
s
tem
q
u
ality
in
to
ch
ar
ac
ter
is
tics
,
wh
ich
in
s
o
m
e
ca
s
es
ar
e
f
u
r
th
er
s
u
b
d
iv
id
ed
in
to
s
u
b
-
ch
a
r
ac
ter
is
tics
.
I
t
is
im
p
o
r
tan
t
th
at
th
e
q
u
ality
c
h
ar
ac
ter
is
tics
ar
e
s
p
ec
if
ied
,
m
ea
s
u
r
ed
,
an
d
ev
al
u
ated
wh
en
e
v
er
p
o
s
s
ib
le
u
s
in
g
v
alid
ated
o
r
wid
ely
ac
ce
p
ted
m
ea
s
u
r
es a
n
d
m
ea
s
u
r
em
en
t m
eth
o
d
s
”
[
1
2
]
.
T
h
e
SQu
aRE
s
tan
d
ar
d
co
n
s
is
t
s
o
f
a
s
er
ies
o
f
in
ter
n
atio
n
al
s
tan
d
ar
d
s
o
r
g
a
n
ized
i
n
d
i
v
is
io
n
s
u
n
d
er
th
e
g
en
er
al
titl
e
So
f
twar
e
Pro
d
u
ct
Qu
ality
R
eq
u
ir
em
e
n
ts
an
d
E
v
alu
a
tio
n
.
Fig
u
r
e
2
illu
s
tr
a
tes
th
e
o
r
g
an
izatio
n
o
f
th
e
SQu
aRE
s
er
ie
s
r
ep
r
esen
tin
g
f
am
ilies
o
f
s
tan
d
ar
d
s
,
f
u
r
th
er
ca
lled
Div
is
io
n
s
.
I
SO/IE
C
2
5
0
0
0
s
er
ies
is
u
s
ed
in
th
is
p
ap
er
t
o
d
e
v
elo
p
e
v
a
lu
atio
n
cr
iter
ia
f
o
r
th
e
p
r
o
p
o
s
ed
u
s
er
n
ee
d
s
ex
p
er
ien
ce
e
v
alu
atio
n
m
eth
o
ds
as f
o
llo
ws
:
−
I
SO/IE
C
2
5
0
1
0
–
s
y
s
tem
an
d
s
o
f
twar
e
q
u
ality
m
o
d
els
T
h
is
d
iv
is
io
n
d
ef
in
es
b
o
th
q
u
ality
in
u
s
e
m
o
d
el
(
d
ef
in
es
ef
f
ec
tiv
en
ess
,
ef
f
icien
cy
,
s
a
tis
f
ac
tio
n
,
f
r
ee
d
o
m
f
r
o
m
r
is
k
a
n
d
c
o
n
te
x
t
co
v
er
a
g
e
q
u
ality
ch
a
r
ac
ter
i
s
tics
)
,
an
d
a
p
r
o
d
u
ct
q
u
ality
m
o
d
e
l
th
at
d
ef
in
es
f
u
n
ctio
n
al
s
u
itab
ilit
y
,
p
er
f
o
r
m
an
ce
ef
f
icien
cy
,
co
m
p
atib
ilit
y
,
u
s
ab
ilit
y
,
r
eliab
ilit
y
,
s
ec
u
r
ity
,
m
ain
tain
ab
ilit
y
,
an
d
p
o
r
tab
ilit
y
q
u
ality
ch
ar
ac
ter
is
t
ics.
−
I
SO/IE
C
2
5
0
2
2
–
th
e
m
ea
s
u
r
e
m
en
t o
f
q
u
ality
in
u
s
e
T
h
is
d
iv
is
io
n
p
r
o
v
id
es a
s
et
o
f
q
u
a
lity
m
ea
s
u
r
es f
o
r
m
ea
s
u
r
i
n
g
an
d
ev
alu
atin
g
q
u
ality
i
n
u
s
e
[
1
0
]
.
−
I
SO/IE
C
2
5
0
2
3
–
th
e
m
ea
s
u
r
e
m
en
t o
f
s
y
s
tem
an
d
s
o
f
twar
e
p
r
o
d
u
ct
q
u
ality
T
h
is
d
iv
is
io
n
p
r
o
v
id
es
a
s
et
o
f
q
u
ality
m
ea
s
u
r
es
f
o
r
s
p
ec
if
y
in
g
r
eq
u
ir
em
en
ts
,
m
ea
s
u
r
in
g
,
an
d
ev
alu
atin
g
th
e
s
y
s
tem
/s
o
f
twar
e
p
r
o
d
u
ct
q
u
ality
[
1
1
]
.
Fig
u
r
e
2
.
SQu
aRE
in
ter
n
atio
n
al
s
tan
d
ar
d
’
s
s
er
ies
[
1
2
]
2
.
3
.
E
v
a
lua
t
i
o
n t
heo
ry
c
o
ncept
Sh
ad
is
h
,
C
o
o
k
,
an
d
L
ev
ito
n
[
8
]
h
av
e
r
ev
iewe
d
th
e
d
o
cu
m
en
t
ed
ev
alu
atio
n
th
eo
r
ie
s
p
r
esen
ted
b
y
s
ev
en
well
-
k
n
o
wn
th
e
o
r
is
ts
an
d
s
tated
th
at
“Scr
iv
en
’
s
th
eo
r
y
ca
n
b
e
ass
u
m
ed
to
b
e
at
th
e
h
i
g
h
est
lev
el
o
f
ab
s
tr
ac
tio
n
as
h
e
d
escr
ib
ed
p
r
in
cip
les,
c
o
n
ce
p
ts
,
an
d
m
eth
o
d
s
f
o
r
an
y
s
ce
n
ar
io
o
f
k
n
o
wled
g
e
co
n
s
tr
u
ctio
n
in
ev
al
u
atio
n
”.
Scr
iv
en
’
s
th
eo
r
y
o
f
ev
al
u
atio
n
“a
ttem
p
ts
to
clar
if
y
th
e
lo
g
ic
b
eh
in
d
ev
alu
atio
n
s
”
[
9
]
.
Fig
u
r
e
3
illu
s
tr
ates
Scr
iv
en
’
s
s
ix
ev
alu
atio
n
c
o
m
p
o
n
en
ts
wh
ich
ar
e
d
is
cu
s
s
ed
in
d
etail
as we
ll in
[
1
3
,
1
4
]
.
Fig
u
r
e
3
.
C
o
m
p
o
n
en
ts
o
f
an
e
v
alu
atio
n
[
9
]
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
1
6
9
3
-
6
9
3
0
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l Co
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
7
8
7
-
2799
2790
−
T
h
e
o
b
ject
o
f
th
e
e
v
alu
atio
n
is
k
n
o
wn
as T
a
r
g
et
.
−
T
h
e
ch
ar
ac
ter
is
tics
o
f
th
e
tar
g
et
ar
e
th
e
cr
iter
ia.
−
Ass
es
s
m
en
t
tech
n
iq
u
es
ar
e
th
e
y
ar
d
s
tick
w
h
ich
is
th
e
s
tan
d
ar
d
o
r
y
ar
d
s
tick
ag
ain
s
t
wh
ic
h
a
r
ea
l
tar
g
et
is
to
b
e
m
atch
e
d
.
−
Data
-
g
ath
er
in
g
tech
n
iq
u
es,
th
ese
tech
n
iq
u
es
s
h
o
u
ld
b
e
d
ef
in
ed
an
d
allo
ca
ted
to
th
e
co
r
r
esp
o
n
d
in
g
ev
alu
atio
n
cr
iter
io
n
.
−
Sy
n
th
esis
tech
n
iq
u
es,
ar
e
u
s
ed
to
ju
d
g
e
th
e
tar
g
et
a
n
d
o
b
tain
i
n
g
th
e
r
esu
lts
o
f
t
h
e
ev
alu
atio
n
.
−
T
h
e
ev
alu
atio
n
p
r
o
ce
s
s
,
ar
e
th
e
ac
tiv
ities
th
at
s
h
o
u
ld
b
e
ex
ec
u
ted
to
p
e
r
f
o
r
m
an
e
v
alu
atio
n
.
3.
DE
V
E
L
O
P
I
NG
UX
E
VA
L
U
AT
I
O
N
M
E
T
H
O
D
At
th
is
p
o
in
t,
an
d
af
ter
ex
p
lain
in
g
th
e
d
if
f
er
en
t
d
is
cip
lin
es
u
s
ed
to
d
ev
elo
p
th
e
UX
ev
alu
atio
n
m
eth
o
d
,
we
n
ee
d
to
d
ef
i
n
e
th
e
ev
alu
ati
o
n
cr
iter
ia
tr
ee
to
ev
alu
ate
t
h
e
u
s
er
n
ee
d
s
e
x
p
er
ien
ce
o
f
th
e
p
r
o
p
o
s
ed
ev
alu
atio
n
m
eth
o
d
.
T
h
e
ev
alu
atio
n
c
r
iter
ia
ar
e
d
ef
in
e
d
b
y
m
ap
p
i
n
g
th
e
q
u
ality
f
ac
to
r
s
d
ef
in
e
d
as
p
ar
t
o
f
th
e
u
s
er
n
ee
d
s
ex
p
er
ien
ce
asp
ec
ts
p
r
esen
ted
in
[
7
]
to
th
e
s
o
f
twar
e
q
u
ality
a
ttrib
u
tes
o
f
I
SO
2
5
0
0
0
(
SQu
a
R
E
)
s
tan
d
ar
d
[
1
2
]
.
Fig
u
r
e
4
d
em
o
n
s
tr
ates
th
e
m
ap
p
in
g
o
f
u
s
er
ex
p
er
ien
ce
asp
ec
ts
with
I
SO
2
5
0
0
0
ch
ar
ac
ter
is
tics
an
d
s
ub
-
ch
ar
ac
ter
is
tics
.
T
h
e
ev
alu
atio
n
th
e
o
r
y
c
o
m
p
o
n
en
ts
ap
p
ly
to
an
y
ev
alu
atio
n
[
1
3
]
.
T
h
ese
co
m
p
o
n
en
ts
ar
e
u
s
ed
in
th
is
r
esear
ch
wo
r
k
to
d
e
v
elo
p
UX
n
ee
d
s
ev
alu
atio
n
m
eth
o
d
.
I
n
ter
esti
n
g
ly
,
th
e
m
a
p
p
in
g
r
esu
lts
d
ep
icted
in
Fig
u
r
e
4
will
b
e
u
s
ed
as
th
e
ce
n
tr
al
ev
alu
atio
n
cr
iter
ia.
T
h
e
p
r
o
ce
d
u
r
e
to
d
e
v
elo
p
th
e
p
r
o
p
o
s
ed
U
X
n
ee
d
s
ev
alu
atio
n
m
eth
o
d
is
b
r
ief
e
d
in
Fig
u
r
e
5
.
I
n
th
is
co
n
tex
t
,
th
e
"c
o
n
tr
o
l
-
o
r
ien
ted
m
eth
o
d
"
o
f
Ho
u
s
e
cl
ass
if
icatio
n
[
1
5
]
is
u
s
ed
to
en
s
u
r
e
th
at
th
e
tar
g
et
is
co
n
tr
o
lled
b
y
th
e
y
ar
d
s
tick
s
p
ec
if
ied
[
1
6
]
.
T
h
e
ev
al
u
ato
r
s
ca
n
d
ev
elo
p
u
s
er
n
ee
d
s
ex
p
er
ie
n
ce
ev
alu
atio
n
m
eth
o
d
b
y
in
s
tan
tiatin
g
th
e
ev
alu
atio
n
f
r
am
ew
o
r
k
d
ep
icted
i
n
Fi
g
u
r
e
3
.
Fig
u
r
e
4
.
User
ex
p
er
ein
ce
asp
ec
t a
n
d
I
SO 2
5
0
0
0
s
tan
d
ar
d
m
ap
p
in
g
s
3
.1
.
T
a
rg
e
t
“T
o
b
e
ab
le
to
id
en
tif
y
th
e
cr
ite
r
ia
ev
alu
atio
n
co
m
p
o
n
e
n
t,
it
is
n
ec
ess
ar
y
to
s
tu
d
y
an
d
d
elim
it
th
e
o
b
ject
u
n
d
er
ev
alu
atio
n
,
wh
ich
m
ea
n
s
id
en
tify
in
g
th
e
f
ac
to
r
s
to
b
e
co
n
s
id
er
ed
”
[
1
4
]
.
I
n
o
u
r
c
ase,
th
e
u
s
er
n
ee
d
s
ex
p
er
ien
ce
is
th
e
tar
g
et.
T
h
e
u
s
er
n
ee
d
s
ex
p
er
ien
ce
f
o
cu
s
e
s
o
n
b
o
t
h
p
r
ag
m
atic
an
d
h
e
d
o
n
ic
n
ee
d
s
[
1
7
-
19]
th
at
ar
e
th
e
k
ey
to
p
r
o
v
id
in
g
g
o
o
d
s
y
s
tem
s
th
at
m
ee
t
cu
s
to
m
er
s
’
n
ee
d
s
an
d
th
er
eb
y
co
n
tr
ib
u
te
to
th
e
b
u
s
in
ess
s
u
cc
ess
[
1
7
]
.
Fig
u
r
e
6
s
h
o
ws th
e
co
m
p
o
n
en
ts
o
f
th
e
tar
g
et
e
v
alu
atio
n
cr
iter
ia.
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l Co
n
tr
o
l
A
r
ig
o
r
o
u
s
u
s
er n
ee
d
s
ex
p
erien
ce
ev
a
lu
a
tio
n
meth
o
d
b
a
s
ed
o
n
… (
Mo
h
a
mma
d
Za
r
o
u
r
)
2791
Fig
u
r
e
5
.
Dev
el
o
p
u
s
er
e
x
p
er
i
en
ce
ev
alu
atio
n
m
eth
o
d
Fig
u
r
e
6
.
C
o
m
p
o
n
en
ts
o
f
tar
g
e
t e
v
alu
atio
n
cr
iter
ia
3
.2
.
Crit
er
ia
Af
ter
d
ef
in
in
g
th
e
tar
g
et,
we
n
ee
d
to
s
p
ec
if
y
wh
at
ar
e
th
e
t
ar
g
et’
s
ch
ar
ac
ter
is
tics
th
at
ar
e
o
f
in
ter
est
f
o
r
th
e
e
v
alu
atio
n
p
u
r
p
o
s
es.
Su
ch
ch
ar
ac
ter
is
tics
r
ep
r
esen
t
th
e
ev
alu
atio
n
c
r
iter
ia.
T
h
e
tech
n
iq
u
e
u
s
ed
f
o
r
cr
iter
ia
elicitatio
n
is
b
ased
o
n
th
e
n
ee
d
s
’
ass
ess
m
en
ts
elicitat
io
n
m
et
h
o
d
[
1
4
]
.
I
n
th
is
a
p
p
r
o
ac
h
,
th
e
n
ee
d
s
ar
e
an
aly
ze
d
a
n
d
r
ep
r
esen
ted
b
y
a
s
et
o
f
u
s
er
n
ee
d
s
asp
ec
ts
(
p
r
a
g
m
atic
asp
ec
ts
,
h
ed
o
n
ic
asp
ec
t
s
)
d
ef
in
e
d
in
th
e
u
s
er
ex
p
er
ien
ce
f
r
am
ewo
r
k
[
7
]
.
T
o
co
n
s
tr
u
ct
u
s
er
s
’
n
ee
d
ex
p
er
ien
ce
cr
iter
ia
tr
ee
,
we
ad
o
p
ted
th
e
r
esu
lt o
f
m
a
p
p
in
g
u
s
er
ex
p
er
ien
ce
asp
ec
ts
with
I
SO2
5
0
0
0
s
tan
d
a
r
d
’
s
ch
a
r
ac
ter
is
tics
.
In
th
e
en
d
,
th
e
m
a
p
p
in
g
p
r
o
ce
s
s
d
ir
ec
ted
th
e
co
n
s
tr
u
ctio
n
o
f
th
e
p
r
ag
m
atic
asp
ec
t
ev
al
u
atio
n
cr
iter
ia
tr
ee
as sh
o
wn
in
Fig
u
r
e
7
,
an
d
h
ed
o
n
ic
asp
e
ct
ev
al
u
atio
n
cr
it
er
ia
tr
ee
as
s
h
o
wn
in
Fig
u
r
e
8
.
T
h
is
cr
iter
ia
tr
ee
is
th
e
b
asis
f
o
r
d
ev
elo
p
in
g
th
e
ev
alu
atio
n
y
ar
d
s
tick
.
a.
Pra
g
m
atic
asp
ec
t.
Pra
g
m
atic
asp
ec
t
r
ef
e
r
s
to
“th
e
s
y
s
tem
'
s
p
er
ce
iv
ed
ab
ilit
y
t
o
s
u
p
p
o
r
t
t
h
e
ac
h
ie
v
em
en
t
o
f
task
s
an
d
f
o
cu
s
es
o
n
th
e
s
y
s
tem
’
s
ac
tu
al
u
s
ab
ilit
y
in
co
m
p
letin
g
task
s
,
t
h
at
ar
e
th
e
‘
d
o
-
g
o
als’
o
f
th
e
u
s
er
”
[
2
0
,
2
1
]
.
T
h
ese
asp
ec
ts
ca
n
b
e
m
ea
s
u
r
ed
u
s
in
g
tech
n
ical
c
h
ar
ac
ter
is
tics
o
f
th
e
d
e
v
elo
p
ed
s
o
f
twar
e
wh
i
ch
ca
n
b
e
f
o
u
n
d
i
n
th
e
tech
n
ical
r
ep
o
r
ts
.
Usi
n
g
I
SO
2
5
0
0
0
ter
m
in
o
lo
g
y
,
th
ese
cr
iter
ia
a
r
e
m
ain
l
y
e
v
alu
atin
g
s
o
f
twar
e
p
r
o
d
u
ct
q
u
ality
r
elate
d
to
u
s
er
ex
p
er
ie
n
ce
in
ter
n
al
an
d
ex
ter
n
al
q
u
al
ity
.
T
h
e
ev
alu
atio
n
p
ar
t
th
at
c
o
r
r
esp
o
n
d
s
to
th
ese
cr
iter
ia
r
eq
u
ir
es
tech
n
ical
d
o
cu
m
en
t
r
ev
iew.
T
h
e
u
s
er
n
ee
d
s
ex
p
er
ien
ce
p
r
ag
m
atic
asp
ec
ts
ar
e
d
iv
id
ed
in
to
th
r
ee
g
en
er
al
e
v
alu
atio
n
cr
iter
ia
ea
ch
o
f
wh
ich
ar
e
d
iv
i
d
ed
in
to
a
s
et
o
f
s
p
ec
if
ic
e
v
alu
atio
n
c
r
iter
ia
as
s
h
o
wn
in
Fi
g
u
r
e
7
.
Gen
er
al
ev
alu
atio
n
cr
iter
ia
r
ef
er
to
“c
h
ar
ac
ter
is
tics
t
h
at
ca
n
n
o
t
b
e
ass
ig
n
ed
a
v
alu
e
d
ir
ec
tly
an
d
r
eq
u
ir
e
f
u
r
th
er
d
ec
o
m
p
o
s
itio
n
to
wh
i
ch
th
e
s
et
o
f
q
u
esti
o
n
s
will
b
e
ap
p
lied
s
u
cc
ess
iv
ely
u
n
til
s
p
ec
if
ic
cr
iter
ia
ar
e
o
b
tain
ed
[
1
4
]
.
Sp
ec
if
ic
ev
alu
a
tio
n
cr
iter
ia
r
ef
er
to
“c
h
ar
ac
te
r
is
tics
th
at
ca
n
b
e
ass
ig
n
ed
a
v
al
u
e
d
ir
ec
tly
u
s
in
g
a
p
ar
ticu
lar
d
ata
-
g
ath
er
in
g
tec
h
n
iq
u
e”
[
1
4
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
1
6
9
3
-
6
9
3
0
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l Co
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
7
8
7
-
2799
2792
T
ab
le
1
illu
s
tr
ates
th
e
s
p
ec
if
ic
d
ef
in
itio
n
o
f
th
e
ev
alu
atio
n
cr
iter
ia.
T
h
e
cr
iter
ia
tr
ee
an
d
th
ese
d
ef
in
itio
n
s
aid
in
th
e
ac
cu
r
ate
u
n
d
er
s
tan
d
i
n
g
o
f
th
e
y
ar
d
s
tick
an
d
th
is
wo
u
l
d
h
elp
th
e
ev
alu
ato
r
k
n
o
w
ex
ac
tly
wh
at
ch
ar
ac
ter
is
tics
ar
e
to
b
e
an
aly
ze
d
.
T
h
e
d
escr
ip
tio
n
o
f
th
e
d
ev
elo
p
ed
p
r
a
g
m
atic
cr
iter
ia
is
g
iv
en
in
T
ab
le
2
.
T
h
ese
cr
iter
ia
ar
e
ex
t
r
ac
ted
f
r
o
m
I
SO2
5
0
2
2
an
d
I
S
O
2
5
0
2
3
[
1
0
,
1
1
]
wh
ich
r
ef
er
to
th
e
m
ea
s
u
r
e
m
en
t
o
f
q
u
ality
i
n
u
s
e,
an
d
s
y
s
tem
a
n
d
s
o
f
twar
e
p
r
o
d
u
ct
q
u
al
ity
r
e
s
p
ec
tiv
ely
.
Fig
u
r
e
7
.
Pra
g
m
atic
asp
ec
t e
v
alu
atio
n
cr
iter
ia
tr
ee
Fig
u
r
e
8
.
Hed
o
n
ic
asp
ec
t e
v
al
u
atio
n
cr
iter
ia
tr
ee
T
ab
le
1
.
Gen
e
r
al
an
d
s
p
ec
if
ic
ev
alu
atio
n
cr
iter
ia
d
escr
ip
tio
n
o
f
p
r
a
g
m
atic
asp
ec
t
[
1
2
]
G
e
n
e
r
a
l
e
v
a
l
u
a
t
i
o
n
c
r
i
t
e
r
i
a
S
p
e
c
i
f
i
c
e
v
a
l
u
a
t
i
o
n
c
r
i
t
e
r
i
a
D
e
scri
p
t
i
o
n
F
u
n
c
t
i
o
n
a
l
su
i
t
a
b
i
l
i
t
y
F
u
n
c
t
i
o
n
a
l
s
u
i
t
a
b
i
l
i
t
y
i
s
“
t
h
e
d
e
g
r
e
e
t
o
w
h
i
c
h
a
p
r
o
d
u
c
t
o
r
s
y
st
e
m
p
r
o
v
i
d
e
s
f
u
n
c
t
i
o
n
s
t
h
a
t
me
e
t
st
a
t
e
d
a
n
d
i
mp
l
i
e
d
n
e
e
d
s w
h
e
n
u
se
d
u
n
d
e
r
sp
e
c
i
f
i
e
d
c
o
n
d
i
t
i
o
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2
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2
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[
1
4
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.
B
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e
p
r
ag
m
atic
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d
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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:
1
6
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18
,
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5
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-
2799
2794
h
ed
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ic
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v
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cr
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d
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3
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2
,
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s
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id
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.
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r
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r
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ati
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a
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t f
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n
ctio
n
g
i
v
en
in
SQu
aRE
s
tan
d
ar
d
s
,
s
p
e
cif
ically
in
I
SO/IE
C
2
5
0
2
2
an
d
I
SO/IE
C
2
5
0
2
3
[
1
0
,
1
1
]
.
W
h
ich
a
r
e
u
s
ed
t
o
m
e
asu
r
e
th
e
ass
ig
n
ed
y
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d
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tick
f
o
r
ea
ch
ev
alu
atio
n
cr
iter
ia?
T
h
e
ass
ig
n
ed
q
u
a
n
titativ
e
v
alu
e
r
an
g
i
n
g
f
r
o
m
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.
0
to
1
.
0
,
t
h
e
clo
s
er
t
o
1
.
0
is
b
etter
.
A
s
am
p
le
o
f
th
e
q
u
an
titativ
e
v
al
u
e
ass
ig
n
ed
f
o
r
t
h
e
ev
alu
atio
n
cr
iter
ia
is
p
r
esen
ted
in
T
a
b
le
5
.
On
e
th
e
o
th
er
h
an
d
,
t
h
e
h
ed
o
n
ic
cr
iter
ia
ar
e
ev
alu
ated
v
ia
a
q
u
esti
o
n
n
air
e.
T
h
e
q
u
esti
o
n
n
air
e
co
n
s
is
ts
o
f
f
o
u
r
s
ec
tio
n
s
:
u
s
ef
u
ln
ess
,
p
leasu
r
e,
u
s
er
in
ter
f
ac
e
ae
s
th
etics,
an
d
tr
u
s
t.
E
ac
h
s
ec
tio
n
co
n
s
is
ts
o
f
a
s
et
o
f
p
o
s
itiv
e
an
d
n
e
g
ativ
e
s
tatem
en
ts
d
esig
n
ed
to
ev
alu
ate
u
s
er
s
atis
f
ac
tio
n
.
T
h
e
an
s
wer
s
ar
e
b
as
ed
o
n
a
L
ik
er
t
s
ca
le
an
d
a
weig
h
t
h
as
b
ee
n
ass
ig
n
ed
as
f
o
llo
ws:
1
f
o
r
s
tr
o
n
g
l
y
d
is
ag
r
ee
,
2
f
o
r
d
is
ag
r
ee
,
3
f
o
r
n
eith
er
ag
r
ee
n
o
r
d
is
ag
r
ee
,
4
f
o
r
ag
r
ee
an
d
5
f
o
r
s
tr
o
n
g
ly
ag
r
ee
.
T
h
is
p
r
o
p
o
s
ed
ev
alu
atio
n
m
et
h
o
d
is
alig
n
ed
with
th
e
ev
alu
atio
n
f
r
am
ewo
r
k
d
is
cu
s
s
ed
in
[
2
2
]
in
th
e
s
en
s
e
th
at
we
d
ef
in
ed
th
e
u
s
er
ex
p
e
r
ien
ce
ev
al
u
atio
n
cr
iter
ia
r
elate
d
to
th
e
p
r
o
d
u
ct
q
u
ality
a
n
d
q
u
ality
in
u
s
e
b
ased
o
n
th
e
co
r
r
esp
o
n
d
i
n
g
d
ef
in
e
d
m
ea
s
u
r
es
o
f
t
h
e
I
SO2
5
0
0
0
s
er
ies
s
tan
d
ar
d
.
T
h
e
f
u
ll
v
e
r
s
io
n
o
f
th
e
ev
alu
atio
n
to
o
l
is
av
ailab
le
at
h
ttp
s
://www.
s
u
r
v
ey
m
o
n
k
ey
.
c
o
m
/r
/C
HM
PTHM
.
T
ab
le
3
.
Gen
e
r
al
an
d
s
p
ec
if
ic
ev
alu
atio
n
cr
iter
ia
d
escr
ip
tio
n
o
f
Hed
o
n
ic
asp
ec
t
[
1
2
]
G
e
n
e
r
a
l
e
v
a
l
u
a
t
i
o
n
c
r
i
t
e
r
i
a
S
p
e
c
i
f
i
c
e
v
a
l
u
a
t
i
o
n
c
r
i
t
e
r
i
a
D
e
scri
p
t
i
o
n
U
sab
i
l
i
t
y
U
sab
i
l
i
t
y
i
s
t
h
e
“
E
x
t
e
n
t
t
o
w
h
i
c
h
a
p
r
o
d
u
c
t
o
r
s
y
st
e
m
c
a
n
b
e
u
se
d
b
y
s
p
e
c
i
f
i
e
d
u
sers
t
o
a
c
h
i
e
v
e
s
p
e
c
i
f
i
e
d
g
o
a
l
s
w
i
t
h
e
f
f
e
c
t
i
v
e
n
e
ss
,
e
f
f
i
c
i
e
n
c
y
,
a
n
d
sa
t
i
sf
a
c
t
i
o
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n
a
sp
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f
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e
d
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o
n
t
e
x
t
o
f
u
se
”
.
U
ser i
n
t
e
r
f
a
c
e
a
e
s
t
h
e
t
i
c
s
“
D
e
g
r
e
e
t
o
w
h
i
c
h
t
h
e
u
s
e
r
i
n
t
e
r
f
a
c
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n
a
b
l
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p
l
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s
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a
n
d
s
a
t
i
sf
y
i
n
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i
n
t
e
r
a
c
t
i
o
n
f
o
r
t
h
e
u
s
e
r
”
.
S
a
t
i
sf
a
c
t
i
o
n
S
a
t
i
sf
a
c
t
i
o
n
i
s
t
h
e
“
D
e
g
r
e
e
t
o
w
h
i
c
h
u
s
e
r
n
e
e
d
s
a
r
e
sa
t
i
sf
i
e
d
w
h
e
n
a
p
r
o
d
u
c
t
o
r
sy
st
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m
i
s
u
se
d
i
n
a
s
p
e
c
i
f
i
e
d
c
o
n
t
e
x
t
o
f
u
se”
.
Tr
u
st
“
D
e
g
r
e
e
t
o
w
h
i
c
h
a
u
ser
o
r
o
t
h
e
r
st
a
k
e
h
o
l
d
e
r
h
a
s
c
o
n
f
i
d
e
n
c
e
t
h
a
t
a
p
r
o
d
u
c
t
o
r
sy
st
e
m w
i
l
l
b
e
h
a
v
e
a
s
i
n
t
e
n
d
e
d
”
.
P
l
e
a
s
u
r
e
“
D
e
g
r
e
e
t
o
w
h
i
c
h
a
u
ser
o
b
t
a
i
n
s
p
l
e
a
s
u
r
e
f
r
o
m
f
u
l
f
i
l
l
i
n
g
t
h
e
i
r
p
e
r
so
n
a
l
n
e
e
d
s
”
.
T
ab
le
4
.
Descr
ip
tio
n
o
f
h
ed
o
n
ic
asp
ec
t e
v
alu
atio
n
cr
iter
ia
[
1
0
,
1
1
]
ID
Y
a
r
d
st
i
c
k
D
e
scri
p
t
i
o
n
1
A
p
p
e
a
r
a
n
c
e
a
e
st
h
e
t
i
c
s
o
f
u
ser
i
n
t
e
r
f
a
c
e
s
Th
e
e
x
t
e
n
t
t
o
w
h
i
c
h
t
h
e
u
ser
i
n
t
e
r
f
a
c
e
s a
n
d
t
h
e
o
v
e
r
a
l
l
d
e
si
g
n
a
e
st
h
e
t
i
c
a
l
l
y
p
l
e
a
si
n
g
i
n
a
p
p
e
a
r
a
n
c
e
2
U
ser t
r
u
s
t
Th
e
e
x
t
e
n
t
t
o
w
h
i
c
h
t
h
e
u
ser
t
r
u
s
t
s t
h
e
sy
s
t
e
m
3
U
ser p
l
e
a
s
u
r
e
Th
e
e
x
t
e
n
t
t
o
w
h
i
c
h
t
h
e
u
ser
o
b
t
a
i
n
s
p
l
e
a
s
u
r
e
c
o
mp
a
r
e
d
t
o
t
h
e
a
v
e
r
a
g
e
f
o
r
t
h
i
s t
y
p
e
o
f
sy
st
e
m
3
.
4
.
Da
t
a
g
a
t
hering
t
ec
hn
iqu
es
Data
g
ath
er
in
g
tech
n
iq
u
es
ar
e
u
s
ed
to
o
b
tain
t
h
e
n
ec
ess
ar
y
i
n
f
o
r
m
atio
n
to
ju
d
g
e
th
e
ta
r
g
et.
T
h
e
m
ain
d
ata
-
g
ath
er
in
g
tech
n
iq
u
es
u
s
e
d
in
m
o
s
t
ev
alu
atio
n
s
in
th
e
s
o
f
twar
e
en
g
in
ee
r
in
g
f
ield
ca
n
b
e
class
ed
in
th
r
ee
g
r
o
u
p
s
[
1
4
]
:
th
e
m
ea
s
u
r
em
en
t
tech
n
iq
u
es,
th
e
ass
ig
n
atio
n
tech
n
iq
u
es,
an
d
Op
in
i
o
n
tech
n
i
q
u
es.
I
n
th
is
p
ap
er
,
th
e
m
ea
s
u
r
em
en
t
an
d
ass
ig
n
atio
n
tech
n
iq
u
es
ar
e
u
s
ed
.
Fo
r
e
ac
h
cr
iter
io
n
,
we
ass
ig
n
ed
m
e
asu
r
em
en
t
f
u
n
ctio
n
as
m
ea
s
u
r
em
en
t
d
ata
-
g
ath
e
r
in
g
tech
n
iq
u
e
,
th
e
m
ea
s
u
r
e
m
en
t
f
u
n
ctio
n
u
s
ed
to
co
m
b
in
e
t
h
e
q
u
ality
m
ea
s
u
r
e
elem
en
ts
f
o
r
ea
ch
cr
iter
io
n
to
p
r
o
d
u
ce
th
e
q
u
ality
m
ea
s
u
r
e
(
y
ar
d
s
tick
)
.
C
o
n
s
eq
u
en
tly
,
th
e
ass
ig
n
atio
n
d
ata
g
ath
er
in
g
tech
n
iq
u
e
is
ass
ig
n
ed
to
o
b
tain
d
ata,
wh
ich
is
u
s
ed
to
g
en
e
r
ate
th
e
n
u
m
er
ica
l
v
alu
es
o
f
q
u
ality
m
ea
s
u
r
e
elem
en
ts
,
to
ju
d
g
e
th
e
u
s
er
n
ee
d
s
ex
p
e
r
ien
ce
(
tar
g
e
t)
with
th
e
n
ex
t
co
m
p
o
n
en
t
(
s
y
n
th
esis
tech
n
iq
u
es).
3
.
5
.
Sy
nthesis
t
ec
hn
iqu
e
s
Sy
n
th
esis
tech
n
iq
u
es
ar
e
u
s
ed
to
s
y
n
t
h
esize
all
th
e
d
ata
a
n
d
in
f
o
r
m
atio
n
o
b
tain
ed
a
f
ter
ap
p
ly
in
g
th
e
d
ata
-
g
ath
e
r
in
g
tech
n
iq
u
es
an
d
f
o
r
co
m
p
ar
is
o
n
ag
ain
s
t
th
e
y
ar
d
s
tick
to
ju
d
g
e
t
h
e
tar
g
et
a
n
d
o
b
tain
th
e
r
esu
lts
o
f
th
e
e
v
alu
atio
n
[
1
4
]
.
Usu
ally
,
two
ty
p
es
o
f
s
y
n
t
h
esis
tech
n
iq
u
es
a
r
e
u
s
ed
,
s
in
g
le
v
alu
e
tech
n
iq
u
es,
an
d
m
u
ltip
le
v
al
u
es
tech
n
iq
u
es
[
1
4
]
.
T
h
e
s
elec
tio
n
o
f
th
e
s
y
n
th
esis
tech
n
iq
u
es
d
ep
en
d
s
o
n
th
e
p
r
ec
e
d
in
g
co
m
p
o
n
en
ts
.
I
n
th
is
r
esear
ch
co
n
tex
t,
th
e
m
u
ltip
le
v
alu
e
tech
n
iq
u
e
is
u
s
ed
w
h
er
e
c
r
iter
ia
g
r
o
u
p
in
g
a
n
d
d
atu
m
-
by
-
d
atu
m
co
m
p
ar
is
o
n
with
th
e
y
ar
d
s
tick
is
ap
p
lied
.
C
o
n
s
eq
u
en
tly
,
a
s
et
o
f
r
ec
o
m
m
en
d
atio
n
s
o
b
tain
b
ased
o
n
e
v
alu
atio
n
r
e
s
u
lts
h
elp
s
to
d
ev
elo
p
th
e
ev
alu
atio
n
tar
g
et,
h
e
n
ce
th
e
u
s
er
n
ee
d
s
ex
p
er
ien
ce
ev
alu
atio
n
m
eth
o
d
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
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2795
T
ab
le
5
.
Qu
a
n
titativ
e
v
alu
es o
f
th
e
p
r
a
g
m
atic
asp
ec
t
ev
alu
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cr
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G
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F
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s
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mb
e
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m
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t
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c
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r
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m:
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q
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p
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t
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ser ma
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l
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st
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l
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o
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c
t
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ss
0
<
=
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<
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1
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e
c
l
o
s
e
r
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o
1
.
0
i
s
b
e
t
t
e
r
.
Th
e
f
u
n
c
t
i
o
n
a
l
c
o
r
r
e
c
t
n
e
ss f
u
n
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t
i
o
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X
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s:
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mb
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f
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m
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t
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R
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q
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.
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e
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t
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ser ma
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ser
d
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=
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u
m
b
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f
u
sa
g
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s
c
e
n
a
r
i
o
s
o
f
t
h
e
p
r
o
d
u
c
t
.
D
a
t
a
c
a
n
b
e
c
o
l
l
e
c
t
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d
f
r
o
m:
•
U
ser ma
n
u
a
l
d
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me
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t
•
a
p
p
l
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c
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t
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o
n
d
e
s
c
r
i
p
t
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o
n
•
O
p
e
r
a
t
i
o
n
(
t
e
s
t
)
r
e
p
o
r
t
3
.
6
.
E
v
a
lua
t
i
o
n pro
ce
s
s
T
h
e
ev
alu
atio
n
p
r
o
ce
s
s
is
a
s
e
r
ies
o
f
ac
tiv
ities
an
d
task
s
th
a
t
ar
e
ex
ec
u
ted
to
p
er
f
o
r
m
an
e
v
alu
atio
n
.
All
th
e
p
r
ev
io
u
s
co
m
p
o
n
en
ts
ar
e
n
ec
ess
ar
y
to
d
escr
ib
e
a
n
d
d
e
s
ig
n
an
ev
alu
atio
n
m
eth
o
d
,
b
u
t
it
is
th
e
ev
alu
atio
n
p
r
o
ce
s
s
th
at
d
escr
ib
es
th
e
lis
t
o
f
ac
tiv
i
ties
to
p
er
f
o
r
m
a
n
d
wh
en
to
u
s
e
th
e
p
r
ev
io
u
s
elem
en
ts
in
p
r
ac
tice.
T
h
e
ev
alu
atio
n
p
r
o
ce
s
s
d
escr
ib
es
th
r
ee
m
ain
p
h
ases
,
th
e
p
lan
n
in
g
o
r
p
r
e
p
ar
atio
n
p
h
ase,
ex
am
in
atio
n
p
h
ase,
an
d
d
ec
is
io
n
-
m
ak
in
g
p
h
ase
[
1
4
]
,
t
h
ese
p
h
ases
m
atch
t
h
e
th
r
ee
m
ajo
r
p
o
in
ts
th
r
o
u
g
h
wh
ich
a
n
ev
alu
atio
n
p
ass
es.
I
n
th
is
r
esear
ch
c
o
n
tex
t,
th
e
ac
tiv
i
ties
ass
o
ciate
d
with
ea
ch
p
h
ase
ar
e
s
h
o
wn
i
n
Fig
u
r
e
9
.
I
n
th
e
p
lan
n
in
g
p
h
ase,
th
e
tar
g
et
s
h
o
u
ld
b
e
an
aly
ze
d
f
ir
s
t.
T
h
is
an
aly
s
is
is
n
ee
d
ed
to
g
et
m
o
r
e
in
f
o
r
m
atio
n
ab
o
u
t
th
e
tar
g
et
to
d
esig
n
th
e
co
m
p
o
n
e
n
ts
in
th
e
n
ex
t
s
t
ep
s
.
I
n
th
e
last
s
tag
e,
all
th
e
ac
tiv
ities
an
d
r
eso
u
r
ce
s
r
eq
u
ir
ed
f
o
r
co
n
d
u
ctin
g
th
e
ev
alu
atio
n
s
h
o
u
ld
b
e
p
r
ep
ar
ed
.
I
n
th
e
e
x
am
in
atio
n
p
h
as
e,
th
e
ev
alu
at
o
r
s
h
o
u
ld
ap
p
ly
th
e
d
ata
g
ath
e
r
in
g
tech
n
iq
u
es
to
co
llect
th
e
d
ata
an
d
v
e
r
if
y
t
h
e
co
m
p
leten
ess
o
f
co
llected
d
ata.
Fin
ally
,
i
n
th
e
d
ec
is
io
n
-
m
ak
i
n
g
p
h
ase,
th
e
e
v
alu
ato
r
s
h
o
u
ld
a
p
p
ly
th
e
s
y
n
th
esis
tech
n
iq
u
e
t
o
co
m
p
ar
e
th
e
d
ata
co
llected
f
r
o
m
th
e
p
r
ec
e
d
in
g
p
h
ase
with
th
e
y
ar
d
s
tick
.
T
h
is
co
m
p
ar
is
o
n
wo
u
ld
s
h
o
w
th
e
wea
k
p
o
in
ts
in
th
e
ev
alu
ated
t
ar
g
et
an
d
b
e
a
b
le
to
s
u
g
g
est
im
p
r
o
v
em
en
ts
i
n
th
e
f
in
al
e
v
alu
atio
n
r
e
p
o
r
t.
T
h
e
ev
alu
atio
n
p
r
o
ce
s
s
s
h
o
u
l
d
b
e
d
o
c
u
m
en
ted
,
th
is
d
o
cu
m
e
n
tatio
n
wo
u
ld
b
e
u
s
ef
u
l
f
o
r
co
m
p
ar
is
o
n
s
with
th
e
r
esu
lts
o
b
tain
in
g
in
f
u
tu
r
e
ev
al
u
atio
n
s
o
f
th
e
s
am
e
o
r
s
im
ilar
tar
g
ets”
[
2
0
]
.
Fig
u
r
e
9
.
Ma
in
s
u
b
-
p
r
o
ce
s
s
es
o
f
th
e
p
r
o
p
o
s
ed
ev
alu
atio
n
p
r
o
ce
s
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
1
6
9
3
-
6
9
3
0
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l Co
n
tr
o
l
,
Vo
l.
18
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
7
8
7
-
2799
2796
4.
Q
UALI
T
Y
O
F
T
H
E
D
E
V
E
L
O
P
E
D
UX
E
VA
L
UA
T
I
O
N
M
E
T
H
O
D
Me
asu
r
in
g
UX
n
ee
d
s
u
s
in
g
th
e
d
ev
elo
p
ed
ev
al
u
atio
n
m
eth
o
d
is
a
way
to
q
u
an
tify
th
e
p
h
e
n
o
m
en
o
n
u
n
d
er
s
tu
d
y
wh
ich
is
th
e
U
X
in
o
u
r
ca
s
e.
Su
ch
a
p
h
e
n
o
m
en
o
n
is
an
a
b
s
tr
ac
t
co
n
ce
p
t
u
s
u
ally
k
n
o
w
n
as
a
th
eo
r
etica
l c
o
n
s
tr
u
ct
th
at
is
a
v
ailab
le
in
v
a
r
io
u
s
d
o
m
ain
s
th
at
in
clu
d
e
h
ea
lth
an
d
s
o
cial
s
cien
ce
s
[
2
3
]
.
“Usin
g
test
s
o
r
in
s
tr
u
m
en
ts
th
at
ar
e
v
alid
an
d
r
eliab
le
t
o
m
ea
s
u
r
e
s
u
ch
co
n
s
tr
u
cts
is
a
cr
u
cial
co
m
p
o
n
e
n
t
o
f
r
esear
ch
q
u
ality
”
[
2
3
]
.
I
n
th
is
r
esear
ch
c
o
n
tex
t,
we
u
s
ed
two
v
er
if
icatio
n
ap
p
r
o
ac
h
es
to
v
alid
ate
th
e
d
e
v
elo
p
ed
ev
alu
atio
n
m
eth
o
d
as f
o
llo
ws:
4
.
1
.
Co
nte
nt
v
a
lid
it
y
C
o
n
ten
t
v
alid
ity
is
c
o
n
ce
r
n
e
d
with
d
eter
m
in
in
g
h
o
w
well
th
e
item
s
d
ev
elo
p
e
d
to
m
ea
s
u
r
e
a
co
n
ce
p
t
o
f
in
ter
est
ar
e
ad
e
q
u
ate
a
n
d
r
ep
r
esen
tativ
e
o
f
all
th
e
item
s
th
at
m
ig
h
t
m
ea
s
u
r
e
th
at
co
n
ce
p
t.
Dete
r
m
in
i
n
g
wh
eth
er
a
m
ea
s
u
r
e
o
r
to
o
l
ad
e
q
u
ately
c
o
v
er
s
a
co
n
ten
t
a
r
ea
o
r
ad
e
q
u
ately
r
ep
r
esen
ts
a
co
n
c
ep
t
is
d
if
f
icu
lt
to
b
e
q
u
an
tifie
d
u
s
in
g
s
tatis
tical
te
s
ts
.
Hen
ce
,
co
n
te
n
t
v
alid
ity
u
s
u
ally
d
e
p
en
d
s
o
n
th
e
j
u
d
g
m
en
t
o
f
e
x
p
er
ts
i
n
th
e
co
n
ce
p
t
d
o
m
ain
.
Acc
o
r
d
in
g
ly
,
two
u
s
er
ex
p
er
ie
n
ce
ex
p
er
ts
h
av
e
b
ee
n
ask
ed
to
r
ev
iew
an
d
r
ate
th
e
d
ev
elo
p
ed
ev
alu
atio
n
to
o
l
an
d
a
n
s
wer
a
s
h
o
r
t
s
u
r
v
ey
o
f
1
7
q
u
esti
o
n
s
ab
o
u
t
t
h
e
clar
ity
an
d
s
u
itab
ilit
y
o
f
th
e
ev
alu
atio
n
t
o
o
l.
T
h
e
an
s
wer
s
to
th
e
q
u
esti
o
n
s
ar
e
b
ased
o
n
a
L
ik
er
t
s
ca
le
o
f
th
r
ee
s
ca
les
(
ag
r
ee
,
p
a
r
tially
ag
r
ee
,
an
d
d
is
ag
r
ee
)
.
T
o
m
ea
s
u
r
e
th
e
d
eg
r
ee
o
f
co
n
c
o
r
d
an
ce
b
etwe
en
th
e
two
r
ate
r
s
,
th
e
in
ter
-
r
ater
r
eliab
ilit
y
test
is
ca
lcu
lated
u
s
in
g
C
o
h
en
’
s
k
ap
p
a
[
2
4
]
.
T
h
e
ca
lc
u
lated
C
o
h
en
’
s
k
a
p
p
a
is
g
iv
e
n
in
T
ab
le
6
.
I
t c
a
n
b
e
s
ee
n
th
at
th
e
ag
r
ee
m
e
n
t le
v
el
b
etwe
en
th
e
two
r
ater
s
(
th
e
k
ap
p
a
co
ef
f
icien
t
k
)
is
7
3
%.
Acc
o
r
d
in
g
to
th
e
k
ap
p
a
d
i
v
is
io
n
s
d
ef
in
ed
in
[
2
5
]
,
th
e
ag
r
ee
m
en
t
lev
el
r
an
g
es
b
e
twee
n
0
.
6
1
-
.
8
0
is
co
n
s
id
er
ed
as
h
av
in
g
a
s
u
b
s
tan
tial
lev
el
o
f
ag
r
ee
m
en
t.
T
h
is
m
ea
n
s
th
at
th
e
two
r
ater
s
a
g
r
e
e
to
an
ac
ce
p
tab
le
lev
el
o
n
th
e
s
u
itab
ilit
y
o
f
t
h
e
d
e
v
elo
p
e
d
UX
ev
alu
atio
n
t
o
o
l.
A
m
o
r
e
ac
cu
r
ate
v
is
io
n
o
f
t
h
e
s
u
itab
ilit
y
o
f
th
e
d
ev
elo
p
ed
to
o
l
ca
n
b
e
ac
h
iev
ed
if
m
o
r
e
e
x
p
er
ts
r
ate
th
e
ev
alu
atio
n
to
o
l,
b
u
t
u
n
f
o
r
t
u
n
ately
,
n
o
o
th
er
ex
p
er
ts
ar
e
f
o
u
n
d
to
a
g
r
ee
o
n
r
atin
g
th
e
e
v
alu
atio
n
to
o
l.
Ma
y
b
e
m
o
r
e
ex
p
er
ts
s
h
o
u
ld
b
e
co
n
tacte
d
in
th
e
f
u
tu
r
e
f
o
r
f
u
r
th
er
im
p
r
o
v
em
e
n
ts
.
T
ab
le
6
.
C
o
h
e
n
’
s
Kap
p
a
ca
lcu
latio
n
s
Ex
p
e
r
t
-
2
A
n
sw
e
r
s
%
Ex
p
e
r
-
1
1
5
0
%
2
4
3
%
3
7%
To
t
a
l
%
P
r
o
b
a
b
i
l
i
t
y
O
f
a
g
r
e
e
me
n
t
:
P
(
a
)
8
6
%
P
r
o
b
a
b
i
l
i
t
y
o
f
a
g
r
e
e
me
n
t
b
y
C
h
a
n
c
e
:
P
(
e
)
4
6
%
C
o
h
e
n
’
s
K
a
p
p
a
(
k
)
7
3
%
4
.
2
.
E
v
a
lua
t
i
o
n m
et
ho
d a
na
l
y
s
is
T
h
e
ev
alu
atio
n
m
eth
o
d
’
s
r
el
iab
ilit
y
an
d
v
alid
ity
ar
e
a
n
a
ly
ze
d
b
y
ev
alu
atin
g
th
e
m
ai
n
in
ter
n
al
d
is
cip
lin
es,
th
at
u
s
ed
to
d
ev
el
o
p
th
e
it.
T
h
r
ee
d
is
cip
lin
es
ar
e
u
s
ed
to
d
ev
el
o
p
th
e
p
r
o
p
o
s
ed
ev
alu
atio
n
m
eth
o
d
,
n
am
ely
,
th
e
u
s
er
ex
p
e
r
ien
ce
f
r
am
ewo
r
k
as
d
escr
ib
ed
in
[
7
]
,
th
e
e
v
alu
atio
n
t
h
eo
r
y
co
n
ce
p
ts
[
8
,
26]
a
n
d
th
e
I
SO2
5
0
0
0
s
er
ies
s
tan
d
ar
d
[
1
0
,
1
1
]
,
T
h
e
c
r
ea
ted
ev
alu
at
io
n
m
eth
o
d
h
as
m
ad
e
u
s
e
o
f
th
ese
d
is
cip
lin
es
as
s
o
lid
b
ases
f
o
r
its
d
ev
elo
p
m
en
t.
Su
ch
s
o
lid
b
ases
lead
t
o
d
ev
elo
p
i
n
g
r
eliab
le
an
d
v
a
lid
u
s
er
ex
p
er
ien
ce
ev
alu
atio
n
m
eth
o
d
.
T
h
e
s
o
lid
n
atu
r
e
o
f
th
ese
d
is
cip
lin
es is
ac
cr
ed
ited
to
th
e
f
o
llo
win
g
m
o
t
iv
es:
a.
T
h
e
UX
f
r
am
ewo
r
k
is
g
r
o
u
n
d
ed
o
n
a
s
y
s
tem
atic
liter
atu
r
e
r
ev
iew
an
d
an
aly
s
is
o
f
ex
tr
ac
ted
d
ata
f
r
o
m
p
r
im
ar
y
s
tu
d
ies.
Fu
r
th
er
m
o
r
e,
th
e
f
r
am
ew
o
r
k
ca
n
b
e
u
s
ed
a
s
s
tr
ateg
ic
g
u
id
elin
es
f
o
r
an
y
o
n
e
in
ter
ested
in
u
s
in
g
th
e
u
s
er
ex
p
er
ien
ce
ac
t
iv
ities
in
th
e
o
r
g
an
izatio
n
.
No
te
th
at
s
o
m
e
n
ew
UX
a
s
p
e
cts
ar
e
r
ec
en
tly
d
o
cu
m
e
n
ted
in
th
e
liter
atu
r
e
a
n
d
ap
p
ly
t
o
ce
r
tain
d
o
m
ain
s
o
r
ex
p
lo
r
in
g
s
o
m
e
n
ew
co
n
ce
p
ts
th
at
ar
e
b
ey
o
n
d
th
e
UX
d
o
m
ain
,
f
o
r
i
n
s
tan
ce
,
Sh
in
et
al.
d
is
cu
s
s
ed
alg
o
r
ith
m
ic
ex
p
er
ien
ce
t
h
at
co
m
es
b
ey
o
n
d
UX
[
2
7
]
,
Sh
in
,
as
well,
d
is
cu
s
s
ed
th
e
co
n
ce
p
t o
f
im
m
er
s
io
n
i
n
au
g
m
en
ted
r
e
ality
g
am
es
an
d
d
ev
elo
p
e
d
a
m
o
d
el
to
p
r
ed
ict
UX
o
f
au
g
m
en
ted
r
ea
lity
g
a
m
es
[
2
8
]
.
Su
ch
d
o
m
ain
-
s
p
ec
i
f
ic
asp
ec
ts
ar
e
ex
cl
u
d
ed
f
r
o
m
th
is
g
en
er
al
UX
ev
alu
atio
n
m
eth
o
d
.
b.
T
h
e
ev
al
u
atio
n
t
h
eo
r
y
h
as
b
ee
n
ad
o
p
ted
an
d
ap
p
lied
in
v
ar
i
o
u
s
ar
en
as
in
clu
d
in
g
th
e
s
o
f
t
war
e
en
g
in
ee
r
in
g
f
ield
.
Ma
n
y
r
esear
ch
e
r
s
in
t
h
e
s
o
f
twar
e
en
g
in
ee
r
in
g
f
ield
u
s
ed
th
e
e
v
alu
atio
n
th
eo
r
y
c
o
n
ce
p
t
as
b
ases
to
d
ev
elo
p
a
n
d
e
v
alu
ate
d
if
f
er
en
t
f
r
am
ewo
r
k
s
,
m
eth
o
d
s
,
an
d
m
o
d
els,
s
ee
f
o
r
in
s
tan
c
e
[
1
3
,
1
6
,
2
9
]
.
Fu
r
th
er
m
o
r
e
,
th
e
ev
al
u
atio
n
th
eo
r
y
ca
n
b
e
ap
p
lied
to
all
k
in
d
s
o
f
ev
alu
atio
n
wo
r
k
.
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