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ISTQB Exam ISTQB-Agile-Public Topic 1 Question 8 Discussion

Actual exam question for ISTQB's ISTQB-Agile-Public exam
Question #: 8
Topic #: 1
[All ISTQB-Agile-Public Questions]

User Story: As a user I want to be able to calculate tax percentage based on amount of income.

What is the best black box test design technique for verifying the accuracy of this user story?

SELECT ONE OPTION

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Suggested Answer: B

Equivalence partitioning is a black box test design technique suitable for verifying the accuracy of user stories like the one described. It involves dividing input data of a software unit into partitions of equivalent data from which test cases can be derived. For a user story involving tax percentage calculation based on income, Equivalence Partitioning allows the creation of test cases for different income ranges (low, medium, high) to ensure that the system accurately calculates tax percentages for each partition, thus covering various scenarios within the application's functionality.


by Albina at Apr 11, 2024, 09:30 PM

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Terrilyn
1 years ago
By testing all statements in the income calculation, we can ensure complete coverage of the functionality.
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Gussie
1 years ago
Why do you think so, Terrilyn?
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Terrilyn
1 years ago
I disagree, I think Statement Testing would be more thorough.
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Crista
1 years ago
Because testing with low, medium, and high income amounts covers a wide range of possible scenarios.
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Gussie
1 years ago
Why do you think so, Crista?
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Crista
1 years ago
I think Equivalence Partitioning would be the best technique.
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Denae
1 years ago
That's a good point, we should consider that as well.
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Margot
1 years ago
But wouldn't User story testing also be important to make sure the user can actually get the result they expect?
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Jeff
1 years ago
I agree with we need to test with different income levels to ensure accuracy.
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Denae
1 years ago
I think Equivalence partitioning would be the best choice for testing this user story.
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Deane
1 years ago
That makes sense. It covers a wide range of scenarios.
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Rima
1 years ago
B) Equivalence partitioning - test with low, medium and high income.
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Lashon
1 years ago
Woah, state transition testing? That sounds a bit overkill for a simple tax calculation feature. I'd stick with the more straightforward approaches like equivalence partitioning or user story testing.
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Johna
1 years ago
Hmm, statement testing could work, but I'm not sure it's the *best* approach here. I think state transition testing might be more comprehensive, testing all the possible states of the income entry process.
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Patria
1 years ago
I don't know, you guys. I'm leaning more towards statement testing. We should make sure all the individual statements in the income calculation are working correctly. That feels like a solid approach to me.
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Princess
1 years ago
I kind of agree with Hayley. User story testing seems more aligned with the actual requirement. Plus, it's more user-centric, which is important for a feature like this.
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Hayley
1 years ago
I'm not so sure about that. I think user story testing might be a better fit here. We need to verify that the user can actually perform the key task of entering an income amount and getting the result.
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Asha
1 years ago
Hmm, this question is interesting. I think the best approach here would be equivalence partitioning. Testing with low, medium, and high income levels should cover the key scenarios and ensure the accuracy of the tax calculation.
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