DPI Direction And Planning Practice Question
When designing a value stream, what term describes a delay or queue where work sits idle between processing steps?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Wait time (Queue time)
In value stream management, waiting time or inventory queues represent non-value-adding waste where work sits idle.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Wait time (Queue time)
Why this is correct
Wait time describes when work sits idle between steps.
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Throughput
Why it's wrong here
Throughput measures the rate at which items pass through the system.
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Process time
Why it's wrong here
Process time is the active time spent working on a step.
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Lead time
Why it's wrong here
Lead time is the total time from order request to delivery.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official AXELOS / PeopleCert exam blueprint
This DPI practice question is part of Courseiva's free AXELOS / PeopleCert certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DPI exam.