25 Model-Based Design of Product-Related Information …
361
The balance of monetary flows from and to a stakeholder is defined by the sum of
the monetary flows to the stakeholder subtracted by the sum of the monetary flows
from the stakeholder as follows.
m k =
j
m kj −
i
m ik
(25.7)
In case of Fig. 25.4, the balance of monetary flows for F, U, R, and I are defined
as follows.
m F = p FU v FU − p RF v RF + i FI w FI − i IF w IF
(25.8)
m U = p UR v UR − p FU v FU + i UI w UI
(25.9)
m R = p RF v RF + p RU v RU − p UR v UR + i RI w RI − i IR w IR
(25.10)
m I = i IF w IF + i IR w IR − i FI w FI − i UI w UI − i RI w RI
(25.11)
25.3.5 Simulation Framework
The simulation framework (see detail in (Komoto et al. 2019)) supports simulation
of the life cycle model and animates and evaluates the behavior of the life cycle
model illustrated in Fig. 25.4. Figure 25.5 shows the screenshot of the simulation
framework that executes the life cycle model.
The life cycle model (system model) is defined on the upper left side. In the
model green squares represent five types of stakeholders. Each green square has four
ports, which represent input/output of product/information. Branches of flows are
defined with diamond nodes. In order to animate product and information flows,
presentation of the model is defined on the upper right side, in which the location
of each stakeholder is defined by a square with the predefined symbol (e.g. F and
E). Simulated information flows and product flows are dynamically animated with
envelopes and circles.
The simulation results at the bottom of Fig. 25.5 show the cumulative number
of each product and information flow appeared in the amount of monetary flows
for each stakeholder (see, formulations 8–11). Moreover, the monetary flows are
computed based on the product and information flows and the values of variables
in the matrices V and W, which can be adjusted by the sliders at the lower right of
Fig. 25.5.
361
The balance of monetary flows from and to a stakeholder is defined by the sum of
the monetary flows to the stakeholder subtracted by the sum of the monetary flows
from the stakeholder as follows.
m k =
j
m kj −
i
m ik
(25.7)
In case of Fig. 25.4, the balance of monetary flows for F, U, R, and I are defined
as follows.
m F = p FU v FU − p RF v RF + i FI w FI − i IF w IF
(25.8)
m U = p UR v UR − p FU v FU + i UI w UI
(25.9)
m R = p RF v RF + p RU v RU − p UR v UR + i RI w RI − i IR w IR
(25.10)
m I = i IF w IF + i IR w IR − i FI w FI − i UI w UI − i RI w RI
(25.11)
25.3.5 Simulation Framework
The simulation framework (see detail in (Komoto et al. 2019)) supports simulation
of the life cycle model and animates and evaluates the behavior of the life cycle
model illustrated in Fig. 25.4. Figure 25.5 shows the screenshot of the simulation
framework that executes the life cycle model.
The life cycle model (system model) is defined on the upper left side. In the
model green squares represent five types of stakeholders. Each green square has four
ports, which represent input/output of product/information. Branches of flows are
defined with diamond nodes. In order to animate product and information flows,
presentation of the model is defined on the upper right side, in which the location
of each stakeholder is defined by a square with the predefined symbol (e.g. F and
E). Simulated information flows and product flows are dynamically animated with
envelopes and circles.
The simulation results at the bottom of Fig. 25.5 show the cumulative number
of each product and information flow appeared in the amount of monetary flows
for each stakeholder (see, formulations 8–11). Moreover, the monetary flows are
computed based on the product and information flows and the values of variables
in the matrices V and W, which can be adjusted by the sliders at the lower right of
Fig. 25.5.