Multiple ChoiceHard 45s
Instability I = Ce/(Ca+Ce)
A module has afferent coupling Ca=0 and efferent coupling Ce=8. Its instability is 1.0. What does that imply?
Options
- 1It is maximally stable and safe to depend on. Many components already depend on it. High incoming dependencies prove stability.
- 2It depends on many others and nothing depends on it; it is maximally unstable and should not be a dependency target
- 3It has high cohesion internally. That cohesion drives its instability metric. Cohesion is read as the cause.
- 4It has no efferent dependencies at all. That is why its instability metric settles low. Zero outgoing dependencies mean zero instability.
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