ISTQB CTAL-TTA Exam - Topic 5 Question 22 Discussion

Actual exam question for ISTQB's CTAL-TTA exam

Question #: 22
Topic #: 5

You are working on a complex systems integration project that will soon be deployed to the production environment. This system is replacing a system that was popular with the users and had no outstanding non-functional issues. There are multiple components that interact and these have been developed by various development and testing groups including some outsourced groups. You will be leading the performance testing effort. Although you would prefer to have a dedicated test system for this effort, you will have to use the production system. You can do this testing at a low usage time, but there will be some users on the system and you will be using real data for the tests. You are now planning your performance testing. Unfortunately, there are no requirements for the performance requirements of the system. How do you determine the acceptable performance levels for the various operational profiles?

AYou should check the performance of the legacy system and use that as a benchmark for the new system

BYou should ask the users what they expect to see for the performance

CYou should go back to the business analysts and require them to update the requirements to include the performance expectations

DYou should use industry standard performance benchmarks

Show Suggested Answer

Suggested Answer: A

Given the absence of defined performance requirements for the new system, a practical approach is to use the performance metrics of the legacy system as a benchmark. This method is beneficial as it provides a clear, historical baseline of what users are accustomed to and accept as satisfactory performance. Benchmarking against the legacy system ensures the new system meets or exceeds the performance levels that users already find acceptable, which can facilitate smoother acceptance and transition to the new system.

by Dean at Sep 19, 2024, 11:12 AM

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Stephaine

3 months ago

Surprised there's no performance requirements at all!

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Rolande

3 months ago

Industry benchmarks could be useful, but are they relevant?

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Glory

3 months ago

I think we need updated requirements from the analysts.

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Carli

4 months ago

Definitely ask users for their expectations!

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Nickolas

4 months ago

Legacy system performance is a solid benchmark!

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Troy

4 months ago

Using industry standard benchmarks sounds familiar, but I wonder if they really apply to our specific context and user needs.

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Adelina

4 months ago

I think we practiced a question where we had to go back to business analysts for requirements. It might be worth pushing for updated performance expectations.

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Lorenza

4 months ago

I'm not entirely sure, but asking users for their expectations could help us gauge what they consider acceptable performance.

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Edmond

5 months ago

I remember we discussed using the legacy system's performance as a baseline in class. It seems like a logical starting point.

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Nieves

5 months ago

This is a great opportunity to show my problem-solving skills. I'll start by analyzing the legacy system, then engage the users to understand their expectations. With that information, I can propose reasonable performance targets.

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Jackie

5 months ago

I think the key here is to use a combination of approaches. Checking the legacy system performance, getting user feedback, and using industry benchmarks could all help me determine the right performance targets.

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Latanya

5 months ago

Hmm, I'm a bit confused on this one. I'm not sure if I should just ask the users or go back to the business analysts. Maybe a combination of both approaches would be best?

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Ronny

5 months ago

This is a tricky one. Without any performance requirements, I'm not sure how to determine the acceptable levels. I'll need to get creative and look at the legacy system as a starting point.

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Adaline

5 months ago

This seems like a straightforward question about using Salesforce features to create a supporters' score. I'll review the options and think about which one best fits the requirements.

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Selene

1 year ago

Hmm, I don't know, maybe we could just ask the magic 8-ball to determine the performance requirements? That seems as reliable as some of these other options.

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Ming

1 year ago

C) You should go back to the business analysts and require them to update the requirements to include the performance expectations

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Lashaunda

1 year ago

Hmm, that could be a good starting point to determine the acceptable performance levels.

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Mike

1 year ago

A) You should check the performance of the legacy system and use that as a benchmark for the new system

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Freeman

1 year ago

Option A is a good starting point, but the legacy system may have had its own performance issues that we don't want to carry forward. I'm with the majority on C and D as the best approach.

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Stevie

1 year ago

While B sounds tempting, users may not always have a realistic understanding of what's achievable. I'd lean towards a combination of C and D to get a solid, data-driven set of requirements.

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Eva

1 year ago

D) You should use industry standard performance benchmarks

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Leana

1 year ago

C) You should go back to the business analysts and require them to update the requirements to include the performance expectations

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Marguerita

1 year ago

A) You should check the performance of the legacy system and use that as a benchmark for the new system

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Shantay

1 year ago

I think option C is the way to go. The business analysts should be responsible for defining the performance requirements upfront, not leaving it to the testing team to figure out.

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