A Method for Capturing and Reconciling Stakeholder Intentions Based on the Formal Concept Analysis - Intentional Perspectives on Information Systems Engineering - page 170

B, F and H since at least one of the sub-goals of goal B, F, and H is also sub-goal(s)
of goal E. Therefore, the dependency among goals is clearly identified.

7 Evaluation of the Goal Reconciliation

Evaluation of Goal Diversity Ratio. Figure 10(a) shows the Goal Diversity Ratio,
Rd, with respect to the number of goals, number of nodes, and number of edges
of three stakeholder goal lattices of self-checkout systems. The figure indicates that
the shopper's goal lattice presents the widest variety of goals, followed by staff,
and manager. Manager's Rd is less than 1.0, which indicates that the manager's
intentions are very narrow, i.e. sharp, than any other stakeholders even narrower
than reference stakeholder of developer. On the other hand, shopper's Rd is the
largest, which indicates their intentions are diverse.
Evaluation of Goal Reduction Ratio . Figure 10(b) shows the Goal Reduction
Ratio, Rr, with respect to the number of goals, number of nodes, and number of
edges of stakeholder goal lattices. Figure 10(b) indicates that reconciliation is most
effective to the shoppers followed by staff, and manager. This result is a dual to the
Rd, since the goals of shopper vary most and include the largest space to be reduced
in the goal lattice.

4.0

77%

80%

3.6

# of Goals
# of Nodes
# of Edgges

# of Goals
# of Nodes
# of Edgges

3.5

70%

64%

59%

3.0 60%

2.5

50% 50% 50%

2.4

2.5

50%

Goal
Reduction
Ratio

Goal
Diversity
Ratio

2 2 2

2.0

40%

1.5

30%

17%

1.0

0.8 0.8 20%

0.6

0.5

10%

0% 0%

0.0

0%

Manager Staff Shopper

Manager Staff Shopper

(a) Goal Diversity Ratio (b) Goal Reduction Ratio

Fig. 10 Evaluation of goal reconciliation effect

8 Discussion

First, we discuss the feasibility of the proposed method from the following
viewpoints.
Approach . There are several approaches to stakeholder analysis. However, they
are suffering from two major drawbacks:

• Techniques are based on heuristics and lack of mathematical foundation

• Techniques are oriented to developers even though they are targeted to users, i.e.

stakeholders.