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−Adaptability
+Learnability
+Consistency
−Accuracy
−Security
+Usability
+Modifiability
−Confidentiality
+Performance
+Accessibility
Fig. 14.
Concept lattice for the media shop context in Fig. 13. To reduce the clutter
of the figure, only the attribute concepts are labeled.
Figure 13 shows the formal context for media shop derived from the repertory
grid in Fig. 8 and the vocabulary map in Fig. 10. The concept lattice of this
context is shown in Fig. 14, in which only attribute concepts are labeled to
reduce the clutter of the line diagram. For each concept
c
in the media shop
example,
extent
(
c
) is the set of tasks that have same contribution links to a set
of softgoals, and
) is the set of softgoals that crosscut those tasks.
A line diagram provides a rich graphical representation of the information
within a particular context, and is amenable to various analyses at the concept
level. For example, between the concepts of any context, there is a natural hierar-
chical order — the subconcept-superconcept relation. This relation can be easily
identified in the line diagram by path traversing [12], and can play an important
intent
(
c
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