CTFL-AT: Certified Tester Foundation Level Agile Tester

By ISTQB · Question Mode

QuestionQ39

Agile Software Development

You are developing the code that controls an industrial Espresso machine that will be operated by waiting staff in restaurants.

The machine is quite complicated and has many switches and buttons, so the next iteration will provide instructions to the operator on a small LCD screen.

A User Story for the Operator-instructions module is:

> “As an operator of the Espresso machine, I would like to know how to steam milk, so I can add steamed milk to the coffee.”

The following list identifies risks for this story, with their assigned probability and impact.

Which option is most correct in the context of the given User Story?

Explanation

Incorrect or improperly ordered operating instructions directly undermine the operator’s ability to steam milk safely and correctly. Such a defect may be relatively unlikely, but its consequences can be serious because industrial espresso equipment can cause incorrect operation and potential safety hazards.

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