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Lean Principles & Value Stream Mapping Flashcards

7 cards from real CLL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Lean Principles & Value Stream Mapping flashcards as text

  1. Which type of waste in the Lean 8 wastes category describes producing more than what the customer currently needs?

    Answer: Overproduction

    Overproduction — making more, earlier, or faster than required — is often called the worst waste because it generates and hides other wastes.

  2. When mapping a future state VSM, what is the first question a lean leader should answer according to Lean fundamentals?

    Answer: What is takt time?

    Establishing takt time is the first step in designing a future state because it synchronizes production pace with customer demand.

  3. A VSM timeline shows 'C/T = 45s' below a process box. What does C/T stand for?

    Answer: Cycle Time

    C/T in VSM data boxes denotes Cycle Time — the actual time to complete one unit at that process step.

  4. What distinguishes a 'value-added' activity from a 'necessary non-value-added' activity in Lean?

    Answer: Value-added activities directly transform the product in a way the customer pays for; necessary NVA activities are required by the business but add no customer value

    Value-added steps physically change the product in ways customers value and pay for; necessary NVA steps (like legal compliance) are required but create no direct value.

  5. In a Lean value stream, a 'supermarket' represents:

    Answer: A controlled inventory buffer where downstream processes pull what they need

    A supermarket is a precisely sized, managed inventory point from which a downstream process pulls only what it needs, when it needs it.

  6. Which Lean concept states that improvement should be pursued endlessly, even after perfection seems achieved?

    Answer: Perfection (Pursue Perfection)

    The fifth Lean principle — Pursue Perfection — holds that as waste is removed, more waste becomes visible, creating a continuous improvement cycle.

  7. What does the 'VA%' metric measure in VSM analysis?

    Answer: The proportion of total lead time that is value-adding process time

    VA% (Value-Added Ratio) = total value-added time ÷ total lead time, and is typically very low (often under 5%), revealing improvement opportunity.