The testable acceptance criteria for the user story are those that can be verified through testing to

ensure they meet the user’s needs and the system’s functionality. In this case:

Criterion (i) is testable because you can verify the payment methods.

Criterion (ii) is testable as you can check if the acknowledgement email is sent after form submission.

Criterion (iv) is testable by confirming that the information is stored in the database correctly.

Criteria (iii) and (v), while important, are not explicitly testable from the user story’s perspective

without further clarification on how spam protection is measured and what constitutes ‘incorrect’

user inputs.

Reference = The ISTQB Advanced Level Agile Technical Tester materials emphasize the importance of

creating testable acceptance criteria that are clear, measurable, and verifiable within the context of

the user story12. This ensures that the developed feature meets the user’s requirements and

functions as intended2.