A value stream's lead time has been stable for months, but the throughput has dropped by 30%. The team is considering reducing the WIP limit to improve flow. What is the most likely effect of this action?

It will have no effect on lead time or throughput

It will decrease lead time, but throughput may also decrease if the limit is set too low

It will increase both lead time and throughput

It will increase throughput by reducing context switching

A value stream has a high cycle time, but the lead time is low. The team is confused because they expected both to be similar. What does this combination most likely indicate?

The team's definition of done is too strict

Work is waiting a long time before being started

The team is working on too many items at once

Work is being picked up quickly, but the active work takes a long time

A value stream team wants to align its metrics with the organization's value-driven goal of 'reducing time to customer value.' Which metric set best supports this goal?

Team satisfaction, customer satisfaction, and employee turnover

Story points completed, velocity, and burndown

Lead time, cycle time, and throughput

Defect escape rate, change failure rate, and mean time to recover

What does 'defect escape rate' measure in a value stream?

The percentage of work items that are completed without any defects

The percentage of defects found in production compared to total defects

The number of defects found during development

The time it takes to fix a defect after it is reported

A team's defect escape rate is 2%, but the change failure rate is 15%. The team is considering adding more automated tests to reduce the defect escape rate further. What should the team do?

Ignore the change failure rate because the defect escape rate is low

Add more automated tests to reduce the defect escape rate

Investigate the causes of the high change failure rate, such as deployment issues or environment differences

Reduce the change failure rate by slowing down deployments

Certified Tester Agile Test Leadership at Scale

Domain 2Objective 4

Metrics for Analyzing a Value Stream CT-ATLAS Practice Questions (Page 5)

Part of the Improve Quality and Flow in a Value-Driven Organization domain, which makes up ~24% of our current practice bank. ISTQB does not publish an official question count, but from its 120-minute exam (~50–80 total, ~12–19 in this domain), expect 2–4 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

4concepts

Questions 21–25

21expert · hard
A value stream's lead time has been stable for months, but the throughput has dropped by 30%. The team is considering reducing the WIP limit to improve flow. What is the most likely effect of this action?
Select an answer first
22application · medium
A value stream has a high cycle time, but the lead time is low. The team is confused because they expected both to be similar. What does this combination most likely indicate?
Select an answer first
23application · easy
A value stream team wants to align its metrics with the organization's value-driven goal of 'reducing time to customer value.' Which metric set best supports this goal?
Select an answer first
24foundation · easy
What does 'defect escape rate' measure in a value stream?
Select an answer first
25application · medium
A team's defect escape rate is 2%, but the change failure rate is 15%. The team is considering adding more automated tests to reduce the defect escape rate further. What should the team do?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to CT-ATLAS

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by ISTQB. “CT-ATLAS” is a trademark of its owner, used for identification only.