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Operations

Key performance indicators in operations

  • 2 things to know
  • Component 02

Overview

Recall questions on key performance indicators in operations, calculating defect, wastage and on-time delivery rates and average delivery time, and why indicators need comparisons and should not be read singly.

What you need to know

Answer each one before you reveal it.

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Key term

Output is up 5% but the defect rate has doubled. What should a manager conclude?

Key term

Name four key performance indicators used to measure operational performance.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is a key performance indicator?

    Model answer

    A key performance indicator is a specific measure a business tracks to judge whether part of its operation is meeting the target set for it.

  2. 2

    Name four key performance indicators used to measure operational performance.

    Model answer

    Defect or wastage rate, output, productivity and delivery times are four operational key performance indicators.

  3. 3

    Why does a business measure operational performance rather than rely on managers' impressions?

    Model answer

    A measured figure can be compared with the target, with the previous period and with competitors, so problems are spotted early and improvement can be proved rather than assumed.

  4. 4

    State the formula for the defect rate.

    Model answer

    Defect rate = defective units ÷ total units produced × 100.

  5. 5

    A factory produces 18,000 units and 270 of them are defective. What is the defect rate?

    Model answer

    The defect rate is 270 ÷ 18,000 × 100 = 1.5%.

  6. 6

    A process takes in 2,400 kg of material and 96 kg is wasted. Calculate the wastage rate.

    Model answer

    The wastage rate is 96 ÷ 2,400 × 100 = 4%.

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