Information Technology Reference
In-Depth Information
MON
OP1
OP10
PAY
PRO
OP9
OP8
OP5
OP2
OP2
OP5
OP4
OP7
OP6
OP3
PF
PS
SPH
SPL
E1H
E1L
E2H
E2L
PF
PS
SPH
SPL
E1H
E1L
E2H
E2L
OP11
OP12
OP13
OP14
OP15
OP16
OP17
OP18
Fig. 3.
Factoring monitoring product data model
Table 1.
Constraints on example monitoring product data model
Operation
C
Q
Operation
C
Q
A
A
Op
01
Op
10
0
1
1.0
0.5
0.5
1.0
Op
02
0.6
0.3
1.0
Op
11
0.2
1
0.9
Op
03
Op
12
0.8
0.8
1.0
0.7
1
0.7
Op
04
0.1
0.7
1.0
Op
13
1
1
0.7
Op
05
Op
14
0.1
0.4
1.0
0.8
1
0.9
Op
06
Op
15
0.1
0.2
1.0
0.5
1
0.63
Op
07
0.8
1
1.0
Op
16
0.3
1
0.7
Op
08
Op
17
0.6
0.7
1.0
0.3
1
0.7
Op
09
Op
18
0.6
0.7
1.0
0.1
1
0.8
Operations in the PDM signify the production of an information product.
In particular,
leaf
operations (
Op11
to
Op18
) signify the production of moni-
toring information made by the supplier, contractors, and the factor, while the
other operations signify the combination of data elements to produce the parent.
In this respect, for instance,
Op07
signifies the combination, made by the con-
sumer, of high quality monitoring information from contractors (
E1H
and
E2H
)
to produce the
PRO
data element, whereas
Op03
signifies the combination of
payment information from the factor (
PF
) and the supplier (
PS
) to produce the
payment monitoring information
PAY
.
We express a path by listing its set of operations. For instance, the path
{
Op
11
,Op
02
,Op
13
,Op
05
,Op
01
}
is complete, since it leads to the production of
the root element
MON
.
Apart from the functional structure, a PDM also contains additional infor-
mation concerning the non-functional aspects of operations. Three dimensions
characterize an operation from the non-functional point of view:
-Cost(C).
Represents the cost of executing the operation. In other words,
for leaf operations, it is the cost sustained by an actor to provide the cor-
respondent monitoring information product, whereas for other operations
it is the cost for the monitoring stakeholder (consumer in our case) to
