External Class Description (ECD)

• ECD measures the complexity of the external class interface;

• A too high ECD may show that the class is too complex to be easy understandable;

• ECD alone cannot measure class understandability.

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This histogram is similar to the CC one. Like explained before ECD alone don’t give a good representation of understandability because is not related to the total class complexity. Some class that have an too high ECD must be inspected because a low understandability can be due to a too complex class interface.