As Felix is documenting an order entry system, he discovers that someone can call up to place an order that is not a customer. In this case, the Take Order use case will use the Create Customer use case to capture the customer information, and then the order will be taken. This is an example of the extend relationship between use cases.

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Quizplus · Accepted Answer

The statement accurately describes the use of the extend relationship between the Take Order and Create Customer use cases. The extend relationship allows additional functionality to be added to a use case when certain conditions are met. In this case, the condition is that the person placing the order is not already a customer.

As Felix Is Documenting an Order Entry System, He Discovers